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2022 USGS CoNED Topobathymetric Model (1885 - 2021): Northern Gulf of Mexico

(MI_Metadata)     fileIdentifier:  gov.noaa.nmfs.inport:67613     language:       LanguageCode:  eng     characterSet:  (MD_CharacterSetCode) UTF8     hierarchyLevel:  (MD_ScopeCode) dataset     hierarchyLevelName:  Elevation     contact:  (CI_ResponsibleParty)         organisationName:  OCM Partners         contactInfo:  (CI_Contact)             phone:  (CI_Telephone)                 voice: (missing)             address:  (CI_Address)         role:  (CI_RoleCode) resourceProvider     contact:  (CI_ResponsibleParty)         organisationName:  NOAA Office for Coastal Management         contactInfo:  (CI_Contact)             phone:  (CI_Telephone)                 voice:  (843) 740-1202             address:  (CI_Address)                 deliveryPoint:  2234 South Hobson Ave                 city:  Charleston                 administrativeArea:  SC                 postalCode:  29405-2413                 country: (missing)                 electronicMailAddress:  coastal.info@noaa.gov             onlineResource:  (CI_OnlineResource)                 linkage: https://coast.noaa.gov                 protocol:  WWW:LINK-1.0-http--link                 name:  NOAA Office for Coastal Management Website                 description:  NOAA Office for Coastal Management Home Page                 function:  (CI_OnLineFunctionCode) information         role:  (CI_RoleCode) pointOfContact     dateStamp:       DateTime:  2022-08-02T19:40:03     metadataStandardName:  ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data     metadataStandardVersion:  ISO 19115-2:2009(E) return to top     referenceSystemInfo:  (MD_ReferenceSystem)         referenceSystemIdentifier:  (RS_Identifier)             code:  EPSG::5703 return to top     referenceSystemInfo:  (MD_ReferenceSystem)         referenceSystemIdentifier:  (RS_Identifier)             code:  EPSG::6344 return to top     identificationInfo:  (MD_DataIdentification)         citation:  (CI_Citation)             title:  2022 USGS CoNED Topobathymetric Model (1885 - 2021): Northern Gulf of Mexico             alternateTitle:  ngom2022_coned_m9562_metadata             date:  (CI_Date)                 date:  2022                 dateType:  (CI_DateTypeCode) creation             date:  (CI_Date)                 date:  2022-05-31                 dateType:  (CI_DateTypeCode) publication             identifier:  (MD_Identifier)                 authority:  (CI_Citation)                     title:  NOAA/NMFS/EDM                     date: (inapplicable)                 code:                   Anchor:  InPort Catalog ID 67613             citedResponsibleParty:  (CI_ResponsibleParty)                 organisationName: (inapplicable)                 contactInfo:  (CI_Contact)                     onlineResource:  (CI_OnlineResource)                         linkage: https://www.fisheries.noaa.gov/inport/item/67613                         protocol:  WWW:LINK-1.0-http--link                         name:  Full Metadata Record                         description:  View the complete metadata record on InPort for more information about this dataset.                         function:  (CI_OnLineFunctionCode) information                 role: (inapplicable)             citedResponsibleParty:  (CI_ResponsibleParty)                 organisationName: (inapplicable)                 contactInfo:  (CI_Contact)                     onlineResource:  (CI_OnlineResource)                         linkage: https://coast.noaa.gov/                         protocol:  WWW:LINK-1.0-http--link                         name:  NOAA's Office for Coastal Management (OCM) website                         description:  Information on the NOAA Office for Coastal Management (OCM)                         function:  (CI_OnLineFunctionCode) download                 role: (inapplicable)             citedResponsibleParty:  (CI_ResponsibleParty)                 organisationName: (inapplicable)                 contactInfo:  (CI_Contact)                     onlineResource:  (CI_OnlineResource)                         linkage: https://www.usgs.gov/special-topics/coastal-national-elevation-database-applications-project                         protocol:  WWW:LINK-1.0-http--link                         name:  USGS CoNED Applications Project                         description:  Link to the USGS CoNED Applications Project.                         function:  (CI_OnLineFunctionCode) download                 role: (inapplicable)             citedResponsibleParty:  (CI_ResponsibleParty)                 organisationName: (inapplicable)                 contactInfo:  (CI_Contact)                     onlineResource:  (CI_OnlineResource)                         linkage: https://coast.noaa.gov/htdata/raster5/elevation/CoNED_NGOM2_DEM_2022_9562/supplemental                         protocol:  WWW:LINK-1.0-http--link                         name:  Geospatial Metadata                         description:  Link to the spatial metadata data dictionary and the spatially referenced metadata in ESRI file geodatabase (gdb) and Open Geospatial Consortium (OGC) GeoPackage (gpkg) formats.                         function:  (CI_OnLineFunctionCode) download                 role: (inapplicable)             citedResponsibleParty:  (CI_ResponsibleParty)                 organisationName: (inapplicable)                 contactInfo:  (CI_Contact)                     onlineResource:  (CI_OnlineResource)                         linkage: https://coast.noaa.gov/dataviewer/                         protocol:  WWW:LINK-1.0-http--link                         name:  NOAA's Office for Coastal Management (OCM) Data Access Viewer (DAV)                         description:  The Data Access Viewer (DAV) allows a user to search for and download elevation, imagery, and land cover data for the coastal U.S. and its territories. The data, hosted by the NOAA Office for Coastal Management, can be customized and requested for free download through a checkout interface. An email provides a link to the customized data, while the original data set is available through a link within the viewer.                         function:  (CI_OnLineFunctionCode) download                 role: (inapplicable)             presentationForm: (unknown)         abstract:  To support U.S. Army Corps of Engineers (USACE) storm surge modeling for the Louisiana Coastal Protection and Restoration Authority (CPRA), Lowermost Mississippi River Management Program (LMRMP), the U.S. Geological Survey (USGS) Coastal National Elevation Database (CoNED) Applications Project has created an integrated 1-meter topobathymetric digital elevation model (TBDEM) for the Northern Gulf of Mexico (NGOM)-2. High-resolution coastal topobathymetric data are required to model flooding, storms, and sea-level rise inundation hazard zones and other earth science applications, such as the development of sediment transport and storm surge models. The new TBDEM consists of the best available multi-source topographic and bathymetric elevation data for the region including neighboring islands, bays, marsh, waterways, and inlets. The NGOM-2 TBDEM integrates 286 different data sources including topographic and bathymetric data, such as lidar point clouds and acoustic surveys obtained from USGS 3D Elevation Program (3DEP), the National Oceanic and Atmospheric Administration, USACE, U.S. Department of Agriculture Natural Resources Conservation Service, Louisiana CPRA, Louisiana Department of Transportation, Lake Pontchartrain Basin Foundation, and the Texas Natural Resources Information System. The topographic and bathymetric surveys were sorted and prioritized based on survey date, accuracy, spatial distribution, and point density to develop a model based on the best available elevation and bathymetric data. Because bathymetric data are typically referenced to tidal datums, such as Mean High Water or Mean Low Water, all tidally referenced heights were transformed into orthometric heights based on the GEOID12B datum, which is normally used for mapping elevation on land using the North American Vertical Datum of 1988. The spatial horizontal resolution is 1-meter. The general location ranges from the old river control structure on the Mississippi River in the north to the Mississippi River delta in the south and extending from the Texas/Louisiana border on the west to the Alabama/Florida border on the east. The overall temporal range of the input topography and bathymetry is 1885 to 2021 with a maximum depth extending to 2,358 meters. The topography surveys are from 2002-2020. The bathymetry surveys were acquired between 1885 and 2021. The data release and all related items of information were prepared by USGS through a sub-contract with the Louisiana Coastal Protection and Restoration Authority, who was funded under Award No. GNTCP18LA0035 from the Gulf Coast Ecosystem Restoration Council (RESTORE Council). The data, statements, findings, conclusions, and recommendations are those of the author[s] and do not necessarily reflect any determinations, views, or policies of the RESTORE Council. This data release was also co-funded by the USGS Coastal and Marine Hazards and Resources Program (CMHRP) for the Northern Gulf of Mexico (NGOM2).         purpose:  As a collaboration between the U.S. Geological Survey (USGS) Coastal and Marine Hazards and Resources Program, the USGS National Geospatial Program, and the National Oceanic and Atmospheric Administration (NOAA) National Centers for Environmental Information, the USGS Coastal National Elevation Database (CoNED) Applications Project integrates disparate light detection and ranging (lidar) and bathymetric data sources into a common three-dimensional (3D) database aligned both vertically and horizontally to a common reference system. The CoNED Project’s topobathymetric digital elevation model (TBDEM) development is focused on select regions around the United States Coast, such as the Northern Gulf of Mexico, Coastal Carolinas, Northeast, California Coast, Pacific Northwest, and the North Slope of Alaska. CoNED Project TBDEMs provide a required seamless elevation product for several science application studies, such as shoreline delineation, coastal inundation mapping, sediment-transport, sea-level rise, storm surge models, tsunami impact assessment, and to analyze the impact of various climate change scenarios on coastal regions. The raster TBDEM product, the Federal Geographic Data Committee metadata, spatially referenced metadata, data management plan, and the spatial metadata data dictionary are contained in the downloadable bundle. Spatially referenced metadata are encompassed within a geodatabase and geospatial map package that contain footprints for each of the input source areas. References: Danielson, J.J., Poppenga, S.K., Brock, J.C., Evans, G.A., Tyler, D.J., Gesch, D.B., Thatcher, C.A., and Barras, J.A. , 2016, Topobathymetric elevation model development using a new methodology-Coastal National Elevation Database: Journal of Coastal Research, SI no. 76, p. 75-89, at http://dx.doi.org/10.2112/SI76-008. Thatcher, C.A., Brock, J.C., Danielson, J.J., Poppenga, S.K., Gesch, D.B., Palaseanu-Lovejoy, M.E., Barras, J.A., Evans, G.A., and Gibbs, A.E., 2016, Creating a Coastal National Elevation Database (CoNED) for science and conservation applications: Journal of Coastal Research, SI no. 76, p. 64-74, at http://dx.doi.org/10.2112/SI76-007. Gesch, Dean B., Oimoen, Michael J., and Evans, Gayla A., 2014, Accuracy assessment of the U.S. Geological Survey National Elevation Dataset, and comparison with other large-area elevation datasets-SRTM and ASTER: U.S. Geological Survey Open-File Report 2014-1008, 10 p., at http://dx.doi.org/10.3133/ofr20141008. Sugarbaker, L.J., Constance, E.W., Heidemann, H.K., Jason, A.L., Lukas, Vicki, Saghy, D.L., and Stoker, J.M., 2014, The 3D Elevation Program initiative—A call for action: U.S. Geological Survey Circular 1399, 35 p Carswell, W.J., Jr., 2013, The 3D Elevation Program—Summary for California: U.S. Geological Survey Fact Sheet 2013–3056, 2 p., http://pubs.usgs.gov/fs/2013/3056/         credit:  Please refer to the Data Quality Section, Source Citations for original source data information., Danielson, J.J. Tyler, D.J. Cushing, W.M. Barra, J.A. Poppenga, S.K. Beverly, S.D. 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                date: (missing)         descriptiveKeywords:  (MD_Keywords)             keyword:  3D Elevation Program             keyword:  3DEP             keyword:  Acoustic Sonar             keyword:  Bathymetric             keyword:  Bathymetry             keyword:  CoNED             keyword:  Coastal National Elevation Database             keyword:  Coastal Zone             keyword:  Coastal and Marine Hazards and Resources Program             keyword:  Digital Elevation Model             keyword:  Flood Inundation Modeling             keyword:  Hydrologic Modeling             keyword:  Light Detection and Ranging             keyword:  Louisiana Coastal Protection and Restoration Authority (CPRA)             keyword:  Lowermost Mississippi River Management Program (LMRMP)             keyword:  National Standards for Spatial Digital Accuracy             keyword:  Topobathymetric             keyword:  U.S. Geological Survey             keyword:  USGS             keyword:  lidar             type:  (MD_KeywordTypeCode) theme         descriptiveKeywords:  (MD_Keywords)             keyword:  DEMs - partner (no harvest)             type:  (MD_KeywordTypeCode) project             thesaurusName:  (CI_Citation)                 title:  InPort                 date: (inapplicable)         resourceConstraints:  (MD_LegalConstraints)             useConstraints:  (MD_RestrictionCode) otherRestrictions             otherConstraints:  Cite As: OCM Partners, [Date of Access]: 2022 USGS CoNED Topobathymetric Model (1885 - 2021): Northern Gulf of Mexico [Data Date Range], https://www.fisheries.noaa.gov/inport/item/67613.         resourceConstraints:  (MD_Constraints)             useLimitation:  NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose.         resourceConstraints:  (MD_LegalConstraints)             accessConstraints:  (MD_RestrictionCode) otherRestrictions             useConstraints:  (MD_RestrictionCode) otherRestrictions             otherConstraints:  Access Constraints: None | Use Constraints: Users should be aware that temporal changes may have occurred since this data set was collected and some parts of this data may no longer represent actual surface conditions. Users should not use this data for critical applications without a full awareness of its limitations. | Distribution Liability: Although these data have been processed successfully on a computer system at the USGS, no warranty expressed or implied is made by the USGS regarding the use of the data on any other system, nor does the act of distribution constitute any such warranty. Data may have been compiled from various outside sources. Spatial information may not meet National Map Accuracy Standards. This information may be updated without notification. The USGS shall not be liable for any activity involving these data, installation, fitness of the data for a particular purpose, its use, or analyses results. Any conclusions drawn from the analysis of this information are not the responsibility of NOAA, the Office for Coastal Management or its partners.         resourceConstraints:  (MD_SecurityConstraints)             classification:  (MD_ClassificationCode) unclassified             classificationSystem: (missing)             handlingDescription: (missing)         aggregationInfo:  (MD_AggregateInformation)             aggregateDataSetName:  (CI_Citation)                 title:  NOAA Data Management Plan (DMP)                 date: (unknown)                 identifier:  (MD_Identifier)                     authority:  (CI_Citation)                         title:  NOAA/NMFS/EDM                         date: (inapplicable)                     code:  67613                 citedResponsibleParty:  (CI_ResponsibleParty)                     organisationName: (inapplicable)                     contactInfo:  (CI_Contact)                         onlineResource:  (CI_OnlineResource)                             linkage: https://www.fisheries.noaa.gov/inportserve/waf/noaa/nos/ocmp/dmp/pdf/67613.pdf                             protocol:  WWW:LINK-1.0-http--link                             name:  NOAA Data Management Plan (DMP)                             description:  NOAA Data Management Plan for this record on InPort.                             function:  (CI_OnLineFunctionCode) information                     role: (inapplicable)             associationType:  (DS_AssociationTypeCode) crossReference         spatialRepresentationType:  (MD_SpatialRepresentationTypeCode) grid         language:  eng; US         topicCategory:  (MD_TopicCategoryCode) elevation         environmentDescription:  For usability, Esri ArcGIS 10.8, Photoshop, GeoCue LP360, VDatum, Global Mapper, Geospatial Data Abstraction Library (GDAL), or equivalent GIS processing software and supporting operating systems are suggested for viewing the spatial metadata.         extent:  (EX_Extent)             geographicElement:  (EX_GeographicBoundingBox)                 westBoundLongitude:  -93.9995                 eastBoundLongitude:  -87.5072                 southBoundLatitude:  28.6991                 northBoundLatitude:  31.1266             temporalElement:  (EX_TemporalExtent)                 extent:                   TimePeriod:                     description:   | Currentness: Ground Condition                     beginPosition:  1885-01-01                     endPosition:  2021-12-31         supplementalInformation:  The data obtained through ScienceBase at https://www.sciencebase.gov/catalog/item/61df2301d34ed79294021f13 are considered to be the "best available" data from the USGS. For questions on distribution, please refer to the Distribution Section, Contact Information. For processing, please refer to the Data Quality Section, Processing Step, Contact Information. return to top     contentInfo:  (MD_FeatureCatalogueDescription)         complianceCode:  false         language:           LanguageCode:  eng         includedWithDataset:  false         featureCatalogueCitation:  (CI_Citation)             title:  Danielson, J.J., Tyler, D.J., Cushing, W.M., Barra, J.A., Poppenga, S.K., Beverly, S.D., and Shogib, R., 2022, Topobathymetric Model of the Northern Gulf of Mexico, 1885 to 2021: U.S. Geological Survey data release, https://doi.org/10.5066/P99JULDN.             date: (unavailable) return to top     distributionInfo:  (MD_Distribution)         distributionFormat:  (MD_Format)             name:  Zip             version: (missing)             fileDecompressionTechnique:  Zip         distributionFormat:  (MD_Format)             name:  GeoTIFF             version: (missing)         distributor:  (MD_Distributor)             distributorContact:  (CI_ResponsibleParty)                 organisationName:  NOAA Office for Coastal Management                 contactInfo:  (CI_Contact)                     phone:  (CI_Telephone)                         voice:  (843) 740-1202                     address:  (CI_Address)                         deliveryPoint:  2234 South Hobson Ave                         city:  Charleston                         administrativeArea:  SC                         postalCode:  29405-2413                         country: (missing)                         electronicMailAddress:  coastal.info@noaa.gov                     onlineResource:  (CI_OnlineResource)                         linkage: https://coast.noaa.gov                         protocol:  WWW:LINK-1.0-http--link                         name:  NOAA Office for Coastal Management Website                         description:  NOAA Office for Coastal Management Home Page                         function:  (CI_OnLineFunctionCode) information                 role:  (CI_RoleCode) distributor         transferOptions:  (MD_DigitalTransferOptions)             onLine:  (CI_OnlineResource)                 linkage: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=9562/details/9562                 protocol:  WWW:LINK-1.0-http--link                 name:  Customized Download                 description:  Create custom data files by choosing data area, map projection, file format, etc. A new metadata will be produced to reflect your request using this record as a base.                 function:  (CI_OnLineFunctionCode) download         transferOptions:  (MD_DigitalTransferOptions)             onLine:  (CI_OnlineResource)                 linkage: https://coast.noaa.gov/htdata/raster5/elevation/CoNED_NGOM2_DEM_2022_9562                 protocol:  WWW:LINK-1.0-http--link                 name:  Bulk Download                 description:  Bulk download of data files in the original coordinate system.                 function:  (CI_OnLineFunctionCode) download return to top     dataQualityInfo:  (DQ_DataQuality)         scope:  (DQ_Scope)             level:  (MD_ScopeCode) dataset         report:  (DQ_AbsoluteExternalPositionalAccuracy)             nameOfMeasure:  Horizontal Positional Accuracy             evaluationMethodDescription:  The horizontal accuracy for the integrated topobathymetric digital elevation model (TBDEM) was not assessed quantitatively.             result: (missing)         report:  (DQ_AbsoluteExternalPositionalAccuracy)             nameOfMeasure:  Vertical Positional Accuracy             evaluationMethodDescription:  NGOM 2 Integrated TBDEM Vertical Accuracy Assessment (GEOID12B): The NGOM 2 TBDEM vertical accuracy was assessed using multiple datasets. The first assessment used 4,510 Real-Time Kinematic (RTK) Global Positioning System (GPS) control points compiled by Dr. Scott Hagen of Louisiana State University (LSU). These points consisted of survey efforts in five locations: 1: Big Branch, 2: Grand Bay, 3: Maurepas, 4: Pascagoula, 5: Pearl River These points are more indicative of wetland areas within the NGOM 2 TBDEM surface. The root mean square error (RMSE) of the TBDEM surface versus these LSU control points was 0.271 meters. The second assessment used 276 National Oceanic and Atmospheric Administration (NOAA) National Geodetic Survey (NGS) Global Positioning System (GPS) on Benchmarks (GPSonBM) control points distributed mostly throughout upland or developed areas of the NGOM 2 TBDEM surface. The RMSE of the TBDEM surface versus these GPSonBM control points was 0.236 meters. The third assessment used 2,568 RTK GPS points from the Coastwide Reference Monitoring System (CRMS). In this case, multiple elevations are taken at a given CRMS station. These elevations are taken within a 2-meter x 2-meter plot, and the elevations are intended to be reflective of the average value of the 2-meter x 2-meter plot. As such, for the purposes of this assessment, multiple elevations for a given plot were averaged and that value was used as the control point for comparison. The average of the NGOM 2 TBDEM surfaced was used within this same plot for comparison. Any CRMS elevation points with notes that justified their exclusion, such as a note indicating the elevation was taken on top of vegetative material, were excluded from the analysis. The remaining CRMS points were distributed throughout, and therefore more indicative of, coastal herbaceous wetland areas of Louisiana. The RMSE of the TBDEM surface versus these CRMS control points was 0.262 meters. Overall, RMSE over the land and nearshore area is 0.267 meters versus a combined 7,354 LSU, GPSonBM, and CRMS control points distributed throughout the NGOM 2 study area. Note: It is important to note that the control points used for this vertical accuracy assessment represent land elevations rather than bathymetric values. As such this vertical accuracy assessment is only reflective of the vertical accuracy of the land component in the data set. There is not sufficient data to accurately quantify the vertical accuracy of the bathymetric portion of this data set. Please refer to the bathymetric data sources for measures of vertical accuracy and uncertainty of the input source data when available. .             result: (missing)         report:  (DQ_CompletenessCommission)             nameOfMeasure:  Completeness Report             evaluationMethodDescription:  Data set is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata record carefully for additional details             result: (missing)         report:  (DQ_ConceptualConsistency)             nameOfMeasure:  Conceptual Consistency             evaluationMethodDescription:  No formal logical accuracy tests were conducted.             result: (missing)         lineage:  (LI_Lineage)             statement:  This CoNED data set for the northern Gulf of Mexico (TX, LA, MS, AL) was provided to NOAA OCM by USGS for inclusion in the NOAA Digital Coast Data Access Viewer.             processStep:  (LI_ProcessStep)                 description:  The principal methodology for developing the integrated topobathymetric digital elevation model (TBDEM) can be organized into three main components. The "topography component" consists of the land-based elevation data, which is primarily comprised from high-density lidar data. The topographic source data will include lidar data from different sensors (Topographic, Bathymetric) with distinct spectral wavelengths (NIR-1064nm, Green-532nm). The "bathymetry component" consists of hydrographic sounding (acoustic) data collected using watercraft rather than bathymetry acquired from green laser lidar within an airborne platform. The most common forms of bathymetric acquisitions include are multi-beam, single-beam, and swath. The final component, "integration", encompasses the assimilation of the topographic and bathymetric data along the near-shore based on a predefined set of priorities. The land/water interface is the most critical area, and green laser systems, such as the Experimental Advanced Airborne Research lidar (EAARL-B) and the Coastal Zone Mapping and Imaging Lidar (CZMIL) that cross the near-shore interface are valuable in developing a seamless transition. The TBDEM created from the topography and bathymetry components is a raster with associated spatial masks and metadata that can be passed to the integration component for final model incorporation. Topo/Bathy Creation Steps: Topography Processing Component: a) Quality control check the vertical and horizontal datum and projection information of the input lidar source to ensure the data is referenced to the North American Vertical Datum of 1988 (NAVD88), the North American Datum of 1983 (NAD83), and the Universal Transverse Mercator (UTM) projection. If the source data is not NAVD88, transform the input lidar data to NAVD88 reference frame using current National Geodetic Survey (NGS) geoid models and NOAA’s Vertical Datums Transformation (VDatum) software. Likewise, if required, convert the input source data to NAD83 and reproject to UTM. b) Check the classification of the topographic lidar data to verify the data are classified with the appropriate classes. If the data have not been classified, then classify the raw point cloud data to non-ground (class 1) ground (class 2), and water (class 9) classes using LP360-Classify. c) Derive associated breaklines from the classified lidar to capture internal water bodies, such as lakes and ponds and inland waterways. Inland waterways and water bodies were hydro-flattened where no bathymetry is present. Hydro-flattening is the process of creating a lidar-derived DEM in which water surfaces appear and behave as they would in traditional topographic DEMs created from photogrammetric digital terrain models (DTMs). d) Extract the ground returns from the classified lidar data and randomly spatial subset the points into two point sets based on the criteria of 95 percent of the points for the "Actual Selected" set and the remaining 5 percent for the "Test Control" set. The "Actual Selected" points will be gridded in the terrain model along with associated breaklines and masks to generate the topographic surface, while the "Test Control" points will be used to compute the interpolation accuracy, Root Mean Square Error (RMSE) from the derived surface. e) Generate the minimum convex hull boundary from the classified ground lidar points that creates a mask that extracts the perimeter of the exterior lidar points. The mask is then applied in the terrain to remove extraneous terrain artifacts outside of the extent of the ground lidar points. f) Using a terrain model based on triangulated irregular networks (TINs), grid the "Actual Selected" ground points using breaklines and the minimum convex hull boundary mask at a 1-meter spatial resolution using a natural neighbor interpolation algorithm. g) Compute the interpolation accuracy by comparing elevation values in the "Test Control" points to values extracted from the derived gridded su                 dateTime:                   DateTime:  2021-07-08T00:00:00             processStep:  (LI_ProcessStep)                 description:  Bathymetry Processing Component: a) Quality control check the vertical and horizontal datum and projection information of the input bathymetric source to ensure the data is referenced to NAVD88 and NAD83, UTM. If the source data is not NAVD88, transform the input bathymetric data to NAVD88 reference frame using VDatum. Likewise, if required, convert the input source data to NAD83 and reproject to UTM. b) Prioritize and spatially sort the bathymetry based on date of acquisition, spatial distribution, accuracy, and point density to eliminate any outdated or erroneous points and to minimize interpolation artifacts. c) Randomly spatial subset the bathymetric points into two point sets based on the criteria of 95 percent of the points for the "Actual Selected" set and the remaining 5 percent for the "Test Control" set. The "Actual Selected" points will be gridded in the empirical Bayesian kriging model along with associated masks to generate the bathymetric surface, while the "Test Control" points will be used to compute the interpolation accuracy (RMSE) from the derived surface. d) Spatially interpolate bathymetric single-beam, multi-beam, and hydrographic survey source data using an empirical Bayesian kriging gridding algorithm. This approach uses a geostatistical interpolation method that accounts for the error in estimating the underlying semivariogram (data structure - variance) through repeated simulations. e) Cross validation - Compare the predicted value in the geostatistical model to the actual observed value to assess the accuracy and effectiveness of model parameters by removing each data location one at a time and predicting the associated data value. The results will be reported in terms of RMSE. f) Compute the interpolation accuracy by comparing elevation values in the "Test Control" points to values extracted from the derived gridded surface; report the results in terms of RMSE.                 dateTime:                   DateTime:  2021-07-08T00:00:00             processStep:  (LI_ProcessStep)                 description:  Integration Component: a.) Analyze the input data priority based on project characteristics, including acquisition dates, cell size, retention of features, water surface treatment, visual inspection, and presence of artifacts. b.) Prioritize and spatially sort the input topographic, topobathymetric, and bathymetric raster layers based on date of survey acquisition date, accuracy, spatial distribution, and point density to sequence the raster data in the integrated elevation model. c.) Develop an ArcGIS geodatabase (Mosaic Dataset) and spatial seamlines for each individual topographic, topobathymetric, and bathymetric raster layer included in the integrated elevation model. d.) Create an overview project masking polygon (based on final study AOI) e.) Using Grid Index Features, create a 6000x6000 fishnet feature class for tile-based integration processing f.) Create simple raster (vector) boundaries (custom simple_raster_bnd_batch tool) from the final set of input rasters based on the input priority. The rasters should be prioritized with the highest priority ranking on top and so forth. g.) Generate spatially referenced metadata for each input raster (custom make spatial metadata tool) from the simple raster boundary files, based on the input priority. The boundaries should be prioritized with the lowest priority (input raster layer) ranking on top and so forth. The spatially referenced metadata consists of the group of geospatial polygons that represent the spatial footprint of each data source used in the generation of the TBDEM. Each polygon is populated with raster metadata attributes that describe the source data, such as, resolution, acquisition date, source name, source organization, source contact, source project, source URL, and data type (topographic lidar, topobathymetric lidar, multibeam bathymetry, single-beam bathymetry, etc.). h.) Generalize seamline edges to smooth transition boundaries between neighboring raster layers and split complex raster datasets with isolated regions into individual unique raster groups. i.) Using the spatial metadata and tile fishnet, spatially mosaic (custom make micro mosaic dataset tool) the input raster data sources based on priority to create a seamless topobathymetric composite at a cell size of 1-meter using a linear spatial blending (ten pixel overlapping area) technique between input source layers. j.) Perform a visual quality assurance (Q/A) assessment on the output TBDEM composite to review the integrated mosaic for artifacts and anomalies.                 dateTime:                   DateTime:  2021-07-08T00:00:00             processStep:  (LI_ProcessStep)                 description:  The NOAA Office for Coastal Management (OCM) received one tif file for the topobathymetric data for northern Gulf of Mexico (TX, LA, MS, AL) from the USGS Coastal National Elevation Database (CoNED) Applications Project for inclusion in the NOAA Digital Coast Data Access Viewer. The data were in UTM Zone 15 NAD83(2011), meters coordinates and in NAVD88 (Geoid12B) elevations in meters. The data were at a 1m grid spacing. The data were retiled to 8512, cloud optimized GeoTiffs using gdal_retile.py and the horizontal (6344) and vertical (5703) EPSG codes were assigned.                 dateTime:                   DateTime:  2022-08-01T00:00:00                 processor:  (CI_ResponsibleParty)                     organisationName:  Office for Coastal Management                     role:  (CI_RoleCode) processor             source:  (LI_Source)                 description:  Source Contribution: Cat Island MS to Gulf Shores, AL.                 sourceCitation:  (CI_Citation)                     title:  2016 USACE NCMP Topobathy Lidar: Gulf Coast (AL, FL, MS, TX)                     date:  (CI_Date)                         date:  2017-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USACE JALBTCX                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://inport.nmfs.noaa.gov/inport/item/49427                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2016             source:  (LI_Source)                 description:  Source Contribution: Covers large portion of Southern, AL, 2017 QL2 Lidar. Contains Baldwin County with NGOM 2 boundary.                 sourceCitation:  (CI_Citation)                     title:  2017 25 County Alabama Lidar                     date:  (CI_Date)                         date:  2020-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USGS                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://rockyweb.usgs.gov/vdelivery/Datasets/Staged/Elevation/1m/Projects/                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2017             source:  (LI_Source)                 description:  Source Contribution: Cat Island MS to Gulf Shores, AL.                 sourceCitation:  (CI_Citation)                     title:  2018 USACE NCMP Topobathy Lidar: Gulf Coast (AL, MS)                     date:  (CI_Date)                         date:  2018-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USACE JALBTCX                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://inport.nmfs.noaa.gov/inport/item/55844                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2018             source:  (LI_Source)                 description:  Source Contribution: Atchafalaya River bank to bank survey                 sourceCitation:  (CI_Citation)                     title:  2019 Atchafalaya River Survey                     date:  (CI_Date)                         date:  2020-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USACE New Orleans District                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://www.mvn.usace.army.mil/Missions/Navigation/Channel-Surveys/                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2019             source:  (LI_Source)                 description:  Source Contribution: Point Breeze, Mississippi River Chanel                 sourceCitation:  (CI_Citation)                     title:  2019_usace_mississippi_auxiliary_entrance_channel                     date:  (CI_Date)                         date:  2019-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USACE                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://www.mvn.usace.army.mil/Missions/Navigation/Channel-Surveys/                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2019             source:  (LI_Source)                 description:  Source Contribution: 1/3 Arc-Second Elevation Southern US                 sourceCitation:  (CI_Citation)                     title:  3DEP_1/3AS_DEM                     date:  (CI_Date)                         date:  2021-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USGS                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://nationalmap.gov/                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimePeriod:                             beginPosition:  1999                             endPosition:  2021             source:  (LI_Source)                 description:  Source Contribution: 1/3 Arc-Second Elevation Southern US                 sourceCitation:  (CI_Citation)                     title:  3DEP_1/9AS_DEM                     date:  (CI_Date)                         date:  2013-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USGS                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://nationalmap.gov/                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimePeriod:                             beginPosition:  1999                             endPosition:  2013             source:  (LI_Source)                 description:  Source Contribution: Magnolia, MS                 sourceCitation:  (CI_Citation)                     title:  3DEP_Co-Op_South_Central_MS                     date:  (CI_Date)                         date:  2015-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USGS                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://rockyweb.usgs.gov/vdelivery/Datasets/Staged/Elevation/1m/Projects/                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2015             source:  (LI_Source)                 description:  Source Contribution: Amite River Basin Mississippi and Louisiana Defined by HUC8                 sourceCitation:  (CI_Citation)                     title:  Amite River Basin                     date:  (CI_Date)                         date:  2019-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USGS/LA DOTD                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://rockyweb.usgs.gov/vdelivery/Datasets/Staged/Elevation/1m/Projects/                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2018             source:  (LI_Source)                 description:  Source Contribution: BA-0143 Elmer's Island east to Caminada Pass, LA.                 sourceCitation:  (CI_Citation)                     title:  BA-0143 Caminada Headlands Beach and Dune Restoration Increment 2: 2017 Bathymetric Survey                     date:  (CI_Date)                         date:  2018-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  LA CPRA                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://cims.coastal.louisiana.gov/Viewer/BathyTopoData/BA-0143/raw/                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2018             source:  (LI_Source)                 description:  Source Contribution: BA-045 Belle Pass east mouth of Bayou Lafourche east to Elmer's Island, LA                 sourceCitation:  (CI_Citation)                     title:  BA-0145 Caminada Headland Beach and Dune Restoration BA-0045                     date:  (CI_Date)                         date:  2017-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  LA CPRA                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://cims.coastal.louisiana.gov/Viewer/BathyTopoData/BA-0045/raw/                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2017             source:  (LI_Source)                 description:  Source Contribution: Mississippi River immediately adjacent to BA-0153 Mid-Barataria diversion channel                 sourceCitation:  (CI_Citation)                     title:  BA-0153 Mid-Barataria Sediment Diversion Bathymetry Survey                     date:  (CI_Date)                         date:  2013-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  LA CPRA                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://cims.coastal.louisiana.gov/Viewer/BathyTopoData/BA-0153/raw/                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2013             source:  (LI_Source)                 description:  Source Contribution: West Grand Terre Island. 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 (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2017             source:  (LI_Source)                 description:  Source Contribution: Grand Isle, LA                 sourceCitation:  (CI_Citation)                     title:  BA-0198 Grand Isle and Vicinity - 2016 Beach and Dune Repair Single Beam Bathymetry Survey                     date:  (CI_Date)                         date:  2020-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  LA CPRA                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://cims.coastal.louisiana.gov/Viewer/BathyTopoData/BA-0198/raw/                                 protocol: 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                        organisationName:  LA CPRA                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://cims.coastal.louisiana.gov/Viewer/BathyTopoData/BA-0202/raw/                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2017             source:  (LI_Source)                 description:  Source Contribution: West Isle Grand Beach, LA                 sourceCitation:  (CI_Citation)                     title:  BA-0210 Grand Isle & Vicinity Breakwater Project Bathymetry Survey                     date:  (CI_Date)                         date:  2020-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  LA CPRA                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://cims.coastal.louisiana.gov/Viewer/BathyTopoData/BA-0210/raw/                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2020             source:  (LI_Source)                 description:  Source Contribution: Eastern Barataria Barrier Islands                 sourceCitation:  (CI_Citation)                     title:  Barataria Islands Bathymetry                     date:  (CI_Date)                         date:  2017-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  LA CPRA                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://cims.coastal.louisiana.gov/Viewer/Map.aspx?guid=7d31c01d-782a-4418-b94b-8cc4442eca2d                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2017             source:  (LI_Source)                 description:  Source Contribution: Biloxi, MS, Mississippi Sound                 sourceCitation:  (CI_Citation)                     title:  Biloxi, Mississippi Coastal Digital Elevation Model                     date:  (CI_Date)                         date:  2007-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  NOAA/NCEI                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://www.ngdc.noaa.gov/mgg/coastal/coastal.html                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2007             source:  (LI_Source)                 description:  Source Contribution: Chandeleur Islands                 sourceCitation:  (CI_Citation)                     title:  Chandeleur Islands Topobathy                     date:  (CI_Date)                         date:  2015-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USGS                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2015             source:  (LI_Source)                 description:  Source Contribution: Ship and Horn Islands, MS/AL                 sourceCitation:  (CI_Citation)                     title:  Coastal Bathymetry Data Collected in 2016 nearshore from West Ship Island to Horn Island, Gulf Islands National Seashore, Mississippi                     date:  (CI_Date)                         date:  2017-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USGS/USACE                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://data.usgs.gov/datacatalog/data/USGS:8b843480-b64c-4501-b288-5ce168b16308                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2016             source:  (LI_Source)                 description:  Source Contribution: Varies                 sourceCitation:  (CI_Citation)                     title:  Continuously Updated Digital Elevation Model (CUDEM - 10m)                     date:  (CI_Date)                         date:  2019-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  NOAA                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://chs.coast.noaa.gov/htdata/raster2/elevation/NCEI_third_Topobathy_2014_8580/                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimePeriod:                             beginPosition:  1851                             endPosition:  2019             source:  (LI_Source)                 description:  Source Contribution: Varies                 sourceCitation:  (CI_Citation)                     title:  Continuously Updated Digital Elevation Model (CUDEM - 3m)                     date:  (CI_Date)                         date:  2019-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  NOAA                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://chs.coast.noaa.gov/htdata/raster2/elevation/NCEI_ninth_Topobathy_2014_8483/                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimePeriod:                             beginPosition:  1851                             endPosition:  2019             source:  (LI_Source)                 description:  Source Contribution: Varies                 sourceCitation:  (CI_Citation)                     title:  Elevation Void Fill (method used to interpolate elevation in cases where no-data gap occurs)                     date:  (CI_Date)                         date:  2021-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USGS                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2021             source:  (LI_Source)                 description:  Source Contribution: Grand Bay                 sourceCitation:  (CI_Citation)                     title:  Grand Bay Mississippi 2015 Bathymetry                     date:  (CI_Date)                         date:  2018-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USGS                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://data.usgs.gov/datacatalog/data/USGS:34da878d-fe52-4625-a17f-bf443547c9b6                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2015             source:  (LI_Source)                 description:  Source Contribution: Consists of MBB collected for 4 Atchafalaya River channel survey areas: 1) Melville, Elba, Morgan City, and Wax Lake, LA acquired by Coastal Planning and Engineering, Inc.                 sourceCitation:  (CI_Citation)                     title:  LA-0161 LASARD Atchafalaya River Multibeam Survey Report                     date:  (CI_Date)                         date:  2012-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  LA CPRA                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://cims.coastal.louisiana.gov/Viewer/Map.aspx?guid=7d31c01d-782a-4418-b94b-8cc4442eca2d                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2012             source:  (LI_Source)                 description:  Source Contribution: Swamp Phase 1 area within Barataria Basin from Lake Des Allemands to Barataria Bay, LA                 sourceCitation:  (CI_Citation)                     title:  LA-0252 System Wide Assessment & Monitoring Program Single Beam Bathymetry Barataria Basin (SWAMP Phase 1)                     date:  (CI_Date)                         date:  2016-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  LA CPRA                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://cims.coastal.louisiana.gov/Viewer/BathyTopoData/LA-0252/raw/                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2016             source:  (LI_Source)                 description:  Source Contribution: Swamp Phase 2 area East of the Mississippi River including Lake Borgne, Lake Pontchartrain, Chandeleur Sound, and the Mississippi River Gulf Outlet (MRGO).                 sourceCitation:  (CI_Citation)                     title:  LA-0252 System Wide Assessment & Monitoring Program Single Beam Bathymetry Pontchartrain and Breton Basins (SWAMP Phase 2)                     date:  (CI_Date)                         date:  2018-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  LA CPRA                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://cims.coastal.louisiana.gov/Viewer/BathyTopoData/LA-0252/raw/                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2017             source:  (LI_Source)                 description:  Source Contribution: Swamp Phase 3 area from East to Central Terrebonne Basin, LA                 sourceCitation:  (CI_Citation)                     title:  LA-0252 System Wide Assessment & Monitoring Program Single Beam Bathymetry Terrebonne Basin (SWAMP Phase 3)                     date:  (CI_Date)                         date:  2018-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  LA CPRA                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://cims.coastal.louisiana.gov/Viewer/BathyTopoData/LA-0252/raw/                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2018             source:  (LI_Source)                 description:  Source Contribution: Swamp Phase 4 area from West Terrebonne Basin to the Sabine Basin, LA                 sourceCitation:  (CI_Citation)                     title:  LA-0252 System Wide Assessment & Monitoring Program Single Beam Bathymetry Western Terrebonne Basin to Sabine Basin (SWAMP Phase 4)                     date:  (CI_Date)                         date:  2019-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  LA CPRA                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://cims.coastal.louisiana.gov/Viewer/BathyTopoData/LA-0252/raw/                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2019             source:  (LI_Source)                 description:  Source Contribution: Lafourche Parish, LA levee system                 sourceCitation:  (CI_Citation)                     title:  Lafourche Levee Lidar 2012                     date:  (CI_Date)                         date:  2012-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USGS                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2012             source:  (LI_Source)                 description:  Source Contribution: ARRA Region 2 encompasses coastal Louisiana east of the Mississippi River, NE to Lake Borgne's excluding the northern shoreline to the MS state line. The active Mississippi River Delta or bird's foot is included in Region 2.                 sourceCitation:  (CI_Citation)                     title:  Louisiana ARRA Region 2 Lidar (Zone 15)                     date:  (CI_Date)                         date:  2013-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USGS                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2013             source:  (LI_Source)                 description:  Source Contribution: ARRA Region 2 encompasses coastal Louisiana east of the Mississippi River, NE to Lake Borgne's excluding the northern shoreline to the MS state line. The active Mississippi River Delta or bird's foot is included in Region 2.                 sourceCitation:  (CI_Citation)                     title:  Louisiana ARRA Region 2 Lidar (Zone 16)                     date:  (CI_Date)                         date:  2013-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USGS                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://rockyweb.usgs.gov/vdelivery/Datasets/Staged/Elevation/1m/Projects/                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2013             source:  (LI_Source)                 description:  Source Contribution: Atchafalaya River Basin within guide levees from Old River to the Gulf of Mexico, (LA).                 sourceCitation:  (CI_Citation)                     title:  Louisiana Atchafalaya Basin 2 Lidar                     date:  (CI_Date)                         date:  2014-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USGS                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://rockyweb.usgs.gov/vdelivery/Datasets/Staged/Elevation/1m/Projects/                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2013             source:  (LI_Source)                 description:  Source Contribution: BICM Chenier Plain Region from Marsh Island, LA West to the TX border.                 sourceCitation:  (CI_Citation)                     title:  Louisiana BICM2 Single Beam Bathymetry Chenier Plain                     date:  (CI_Date)                         date:  2017-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  LA CPRA                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://coastal.er.usgs.gov/data-release/doi-F7CV4GZH/                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2015             source:  (LI_Source)                 description:  Source Contribution: BICM Western Early Lafourche Delta Region from Racoon Point West to Point Au Fer Island, LA.                 sourceCitation:  (CI_Citation)                     title:  Louisiana BICM2 Single Beam Bathymetry Raccoon Point to Point Au Fer Island                     date:  (CI_Date)                         date:  2017-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  LA CPRA                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://pubs.usgs.gov/ds/1041/ds1041_data.html                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2015             source:  (LI_Source)                 description:  Source Contribution: Southern Louisiana                 sourceCitation:  (CI_Citation)                     title:  Louisiana Barrier Island Comprehensive Monitoring Program (BICM): 2015 Bathymetric Survey – Grand Isle to Sandy Point Survey Report East Zone                     date:  (CI_Date)                         date:  2002-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  LA CPRA                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2002             source:  (LI_Source)                 description:  Source Contribution: Central Western Louisiana from Southern Rapides Parish south to 2017 chenier Plain QL2 lidar boundary and from 4 miles west of Lafayette, LA to eastern Lake Charles, LA.                 sourceCitation:  (CI_Citation)                     title:  Louisiana Bayou Nezpique Lidar 2018                     date:  (CI_Date)                         date:  2020-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USGS/NRCS                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://rockyweb.usgs.gov/vdelivery/Datasets/Staged/Elevation/1m/Projects/                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2018             source:  (LI_Source)                 description:  Source Contribution: Chenier Plain (LA)                 sourceCitation:  (CI_Citation)                     title:  Louisiana Chenier Plain Lidar 2017                     date:  (CI_Date)                         date:  2018-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USGS/LA CPRA                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://rockyweb.usgs.gov/vdelivery/Datasets/Staged/Elevation/1m/Projects/                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2017             source:  (LI_Source)                 description:  Source Contribution: South Barataria basin (LA) between Bayou Lafourche on West and the Mississippi River on East and from Lake Salvador on North and then South to the Gulf of Mexico (LA).                 sourceCitation:  (CI_Citation)                     title:  Louisiana Jean Lafitte and Southern Barataria Basin Lidar                     date:  (CI_Date)                         date:  2015-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USGS/LA CPRA                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://rockyweb.usgs.gov/vdelivery/Datasets/Staged/Elevation/1m/Projects/                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2013             source:  (LI_Source)                 description:  Source Contribution: South Terrebonne basin 9LA) from Gulf of Mexico on South then North to Morgan City and then ENE to the west bank of Bayou Lafourche, near Labadieville, and then SE to Galliano, LA. Also includes Gulf barrier Islands from the Chandeleur Islands, LA East to Dauphin Island, AL.                 sourceCitation:  (CI_Citation)                     title:  Louisiana South Terrebonne and Gulf Islands QL2 Lidar 2015                     date:  (CI_Date)                         date:  2016-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USGS                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://rockyweb.usgs.gov/vdelivery/Datasets/Staged/Elevation/1m/Projects/                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2015             source:  (LI_Source)                 description:  Source Contribution: Statewide                 sourceCitation:  (CI_Citation)                     title:  Louisiana Statewide Lidar                     date:  (CI_Date)                         date:  2005-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  LOSCO                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://atlas.ga.lsu.edu/datasets/lidar2000/                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2004             source:  (LI_Source)                 description:  Source Contribution: Upper Delta Plain (LA) from the Peral River on East to the Atchafalaya River East Guide Levee on West. From I-12 North to mid-Barataria Basin North-east to the Pearl River.                 sourceCitation:  (CI_Citation)                     title:  Louisiana Upper Delta Plain Lidar 2017                     date:  (CI_Date)                         date:  2017-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USGS/LA CPRA                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://rockyweb.usgs.gov/vdelivery/Datasets/Staged/Elevation/1m/Projects/                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2017             source:  (LI_Source)                 description:  Source Contribution: West of Camp Shelby                 sourceCitation:  (CI_Citation)                     title:  MS2006_MDEQ_CampShelby                     date:  (CI_Date)                         date:  2006-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  NOAA                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://coast.noaa.gov/dataviewer/#/lidar/search/                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2006             source:  (LI_Source)                 description:  Source Contribution: Bohemia Spillway, Plaquemines Parish, LA                 sourceCitation:  (CI_Citation)                     title:  Mardi_Gras_Pass                     date:  (CI_Date)                         date:  2019-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  Lake Pontchartrain Basin Foundation                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://saveourlake.org/                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2019             source:  (LI_Source)                 description:  Source Contribution: Mississippi River, south and west of New Orleans                 sourceCitation:  (CI_Citation)                     title:  Mississippi Additional Bathymetry                     date:  (CI_Date)                         date:  2013-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USACE                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://www.mvn.usace.army.mil/Missions/Navigation/Channel-Surveys/                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2013             source:  (LI_Source)                 description:  Source Contribution: Six Mississippi Coastal Counties and 3DEP Extension (Pike County in NGOM 2 AOI)                 sourceCitation:  (CI_Citation)                     title:  Mississippi Coastal QL2 Lidar                     date:  (CI_Date)                         date:  2018-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USGS                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://www.maris.state.ms.us/ftp4DEM/Coastal_2015_DEMs/DEM_IMG/                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2015             source:  (LI_Source)                 description:  Source Contribution: Mississippi River Channel                 sourceCitation:  (CI_Citation)                     title:  Mississippi River Bathymetry                     date:  (CI_Date)                         date:  2019-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USACE                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://www.mvn.usace.army.mil/Missions/Navigation/Channel-Surveys/                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2019             source:  (LI_Source)                 description:  Source Contribution: Mobile Bay, AL                 sourceCitation:  (CI_Citation)                     title:  Mobile, Alabama 1/3 arc-second NAVD 88 Coastal Digital Elevation Model                     date:  (CI_Date)                         date:  2009-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  NOAA/NCEI                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://www.ngdc.noaa.gov/mgg/coastal/coastal.html                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2009             source:  (LI_Source)                 description:  Source Contribution: Filtered bathymetry in the northern Gulf of Mexico                 sourceCitation:  (CI_Citation)                     title:  NCEI channel filter                     date:  (CI_Date)                         date:  2021-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USGS                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2021             source:  (LI_Source)                 description:  Source Contribution: 700 square mile area to the east of Mobile Bay                 sourceCitation:  (CI_Citation)                     title:  NGOM Alabama LiDAR                     date:  (CI_Date)                         date:  2010-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USGS                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://rockyweb.usgs.gov/vdelivery/Datasets/Staged/Elevation/1m/Projects/                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2010             source:  (LI_Source)                 description:  Source Contribution: Northern Gulf of Mexico                 sourceCitation:  (CI_Citation) 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                            onlineResource:  (CI_OnlineResource)                                 linkage: https://rockyweb.usgs.gov/vdelivery/Datasets/Staged/Elevation/1m/Projects/                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2018             source:  (LI_Source)                 description:  Source Contribution: Tishomingo, Mississippi 2016 QL2 LiDAR Project southern AOI only (partial NGOM 2 coverage).                 sourceCitation:  (CI_Citation)                     title:  USGS Lidar Tishomingo-South, MS 2016                     date:  (CI_Date)                         date:  2017-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USGS                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://rockyweb.usgs.gov/vdelivery/Datasets/Staged/Elevation/1m/Projects/                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2016             source:  (LI_Source)                 description:  Source Contribution: Tupelo, Mississippi 2016 QL2 LiDAR Project Report (partial NGOM 2 coverage).                 sourceCitation:  (CI_Citation)                     title:  USGS Lidar Tupelo, MS 2015                     date:  (CI_Date)                         date:  2016-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USGS                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://rockyweb.usgs.gov/vdelivery/Datasets/Staged/Elevation/1m/Projects/                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2015             source:  (LI_Source)                 description:  Source Contribution: Southwest Central MS from Vicksburg to Louisiana state line. 2016 QL2 LiDAR Project Report (partial NGOM 2 coverage).                 sourceCitation:  (CI_Citation)                     title:  USGS NRCS Lidar Natchez, MS 2016                     date:  (CI_Date)                         date:  2017-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USGS/NRCS                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://rockyweb.usgs.gov/vdelivery/Datasets/Staged/Elevation/1m/Projects/                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2017             source:  (LI_Source)                 description:  Source Contribution: Baptiste Collette Pass Mississippi River                 sourceCitation:  (CI_Citation)                     title:  eHydro Baptiste_Colette_LA                     date:  (CI_Date)                         date:  2020-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USACE                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2020             source:  (LI_Source)                 description:  Source Contribution: Barataria Waterway                 sourceCitation:  (CI_Citation)                     title:  eHydro Barataria Barataria_Waterway / Channel                     date:  (CI_Date)                         date:  2019-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USACE                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2019             source:  (LI_Source)                 description:  Source Contribution: Bayou Boeuf to GIWW intersection with Bayou Chene and Bayou Black.                 sourceCitation:  (CI_Citation)                     title:  eHydro Bayou_Chene_Black_Boeuf_LA                     date:  (CI_Date)                         date:  2019-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USACE                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2019             source:  (LI_Source)                 description:  Source Contribution: Bayou Lafourche                 sourceCitation:  (CI_Citation)                     title:  eHydro Bayou_Lafourche_LA                     date:  (CI_Date)                         date:  2019-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USACE                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2019             source:  (LI_Source)                 description:  Source Contribution: Bayou Rigaud                 sourceCitation:  (CI_Citation)                     title:  eHydro Bayou_Rigaud_LA                     date:  (CI_Date)                         date:  2019-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USACE                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2019             source:  (LI_Source)                 description:  Source Contribution: Bayou Schaffer                 sourceCitation:  (CI_Citation)                     title:  eHydro Bayou_Schaffer_la_cl                     date:  (CI_Date)                         date:  2018-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USACE                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2018             source:  (LI_Source)                 description:  Source Contribution: Bayou Boeuf                 sourceCitation:  (CI_Citation)                     title:  eHydro Bayou_boeuf_giww_west_la_cls                     date:  (CI_Date)                         date:  2019-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USACE                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2019             source:  (LI_Source)                 description:  Source Contribution: Calcasieu River                 sourceCitation:  (CI_Citation)                     title:  eHydro Calcasieu_Ship_Channel                     date:  (CI_Date)                         date:  2019-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USACE                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2019             source:  (LI_Source)                 description:  Source Contribution: Fresh water Bayou                 sourceCitation:  (CI_Citation)                     title:  eHydro Fresh_Water_Bayou                     date:  (CI_Date)                         date:  2018-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USACE                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2018             source:  (LI_Source)                 description:  Source Contribution: Gulf Intracoastal Waterway, New Orleans                 sourceCitation:  (CI_Citation)                     title:  eHydro GIWW_IHNC                     date:  (CI_Date)                         date:  2018-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USACE                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2018             source:  (LI_Source)                 description:  Source Contribution: Port Arthur to Port Bolivar                 sourceCitation:  (CI_Citation)                     title:  eHydro GIWW_Port_Author_Bolivar                     date:  (CI_Date)                         date:  2019-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USACE                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2019             source:  (LI_Source)                 description:  Source Contribution: Houma Navigation Channel                 sourceCitation:  (CI_Citation)                     title:  eHydro Houma Ship Channel                     date:  (CI_Date)                         date:  2019-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USACE                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2019             source:  (LI_Source)                 description:  Source Contribution: Gulf Intracoastal Waterway from Houma to New Orleans, LA                 sourceCitation:  (CI_Citation)                     title:  eHydro LA Barataria Houma                     date:  (CI_Date)                         date:  2019-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USACE                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2019             source:  (LI_Source)                 description:  Source Contribution: Lake Maurepas, Lake Pontchartrain                 sourceCitation:  (CI_Citation)                     title:  eHydro Lake Maurepas and Pontchartrain                     date:  (CI_Date)                         date:  2020-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USACE                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2020             source:  (LI_Source)                 description:  Source Contribution: Atchafalaya River - lower bay channel                 sourceCitation:  (CI_Citation)                     title:  eHydro Lower_Atchaf_Atchaf_Bay_LA                     date:  (CI_Date)                         date:  2020-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USACE                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2020             source:  (LI_Source)                 description:  Source Contribution: Mermentau River - lower river                 sourceCitation:  (CI_Citation)                     title:  eHydro Mermentau_River_LA                     date:  (CI_Date)                         date:  2018-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USACE                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2018             source:  (LI_Source)                 description:  Source Contribution: Mississippi Passes                 sourceCitation:  (CI_Citation)                     title:  eHydro Mississippi_Passes                     date:  (CI_Date)                         date:  2020-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USACE                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2020             source:  (LI_Source)                 description:  Source Contribution: Sabine Neches Waterway                 sourceCitation:  (CI_Citation)                     title:  eHydro Sabine_Pass_Channel                     date:  (CI_Date)                         date:  2019-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USACE                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2019             source:  (LI_Source)                 description:  Source Contribution: Seabrook floodgate                 sourceCitation:  (CI_Citation)                     title:  eHydro Upper_Barataria_ww_giww_ww_harvey_algiers_canal                     date:  (CI_Date)                         date:  2017-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USACE                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2017             source:  (LI_Source)                 description:  Source Contribution: Vermilion River, Vermilion Bay                 sourceCitation:  (CI_Citation)                     title:  eHydro Vermilion_River_3Milecut_VBay                     date:  (CI_Date)                         date:  2019-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USACE                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2019             source:  (LI_Source)                 description:  Source Contribution: St Louis Bay, Bryan Bayou, Mississippi Sound                 sourceCitation:  (CI_Citation)                     title:  eHydro bay_st_louis_ms                     date:  (CI_Date)                         date:  2019-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USACE                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2019             source:  (LI_Source)                 description:  Source Contribution: Bayou Black                 sourceCitation:  (CI_Citation)                     title:  eHydro bayou_black_20200506_cl                     date:  (CI_Date)                         date:  2020-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USACE                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2020             source:  (LI_Source)                 description:  Source Contribution: Bayous Bonfuca, Lacombe, and Segnette                 sourceCitation:  (CI_Citation)                     title:  eHydro bayou_bonfuca_lacombe_segnette                     date:  (CI_Date)                         date:  2020-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USACE                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2020             source:  (LI_Source)                 description:  Source Contribution: Bayou la Batre, Coden, AL                 sourceCitation:  (CI_Citation)                     title:  eHydro bayou_labatre_coden_al                     date:  (CI_Date)                         date:  2019-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USACE                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2019             source:  (LI_Source)                 description:  Source Contribution: Bayou Boeuf                 sourceCitation:  (CI_Citation)                     title:  eHydro bboeuf_mcdocks_bbay                     date:  (CI_Date)                         date:  2019-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USACE                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2019             source:  (LI_Source)                 description:  Source Contribution: Back Bay of Biloxi                 sourceCitation:  (CI_Citation)                     title:  eHydro biloxi_back_bay_channels                     date:  (CI_Date)                         date:  2019-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USACE                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2019             source:  (LI_Source)                 description:  Source Contribution: Bon Secour River                 sourceCitation:  (CI_Citation)                     title:  eHydro bon_secour_river_al                     date:  (CI_Date)                         date:  2020-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USACE                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2020             source:  (LI_Source)                 description:  Source Contribution: East Fowl River                 sourceCitation:  (CI_Citation)                     title:  eHydro fowl_river_al                     date:  (CI_Date)                         date:  2019-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USACE                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2019             source:  (LI_Source)                 description:  Source Contribution: Gulfport Sound Channels                 sourceCitation:  (CI_Citation)                     title:  eHydro gulfport_sound_channels_ms                     date:  (CI_Date)                         date:  2019-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USACE                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2019             source:  (LI_Source)                 description:  Source Contribution: Mobile upper bay channel                 sourceCitation:  (CI_Citation)                     title:  eHydro mobile_river_bay_channel_al                     date:  (CI_Date)                         date:  2020-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USACE                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2020             source:  (LI_Source)                 description:  Source Contribution: Tiger Pass, Venice                 sourceCitation:  (CI_Citation)                     title:  eHydro mr_tiger_pass_la                     date:  (CI_Date)                         date:  2019-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USACE                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2019             source:  (LI_Source)                 description:  Source Contribution: Pascagoula River Channel.                 sourceCitation:  (CI_Citation)                     title:  eHydro pascagoula_river_channel_ms                     date:  (CI_Date)                         date:  2019-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USACE                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2019             source:  (LI_Source)                 description:  Source Contribution: Fresh water Bayou                 sourceCitation:  (CI_Citation)                     title:  eHydro reshwater_bayou_to_GIWW_vermilion_river                     date:  (CI_Date)                         date:  2018-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USACE                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2017             source:  (LI_Source)                 description:  Source Contribution: IHNC Storm Surge Barrier MRGO to Gulf Intracoastal Waterway (GIWW) immediately south-east of MRGO with the GIWW, LA.                 sourceCitation:  (CI_Citation)                     title:  eHydro seabrook_flood_gate_pontchartrain_surge                     date:  (CI_Date)                         date:  2020-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USACE                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2020             source:  (LI_Source)                 description:  Source Contribution: Intercoastal Waterway south of New Orleans                 sourceCitation:  (CI_Citation)                     title:  eHydro_upper_barataria_LA                     date:  (CI_Date)                         date:  2020-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USACE                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2020             source:  (LI_Source)                 description:  Source Contribution: Dauphin Island, Fly Creek, Perdido Pass                 sourceCitation:  (CI_Citation)                     title:  perdido_pass_fly_creek_dauphin_island_al                     date:  (CI_Date)                         date:  2020-01-01                         dateType:  (CI_DateTypeCode) publication                     citedResponsibleParty:  (CI_ResponsibleParty)                         organisationName:  USACE                         contactInfo:  (CI_Contact)                             onlineResource:  (CI_OnlineResource)                                 linkage: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d                                 protocol:  WWW:LINK-1.0-http--link                                 name:  Source Citation URL                                 description:  Source Citation URL                                 function:  (CI_OnLineFunctionCode) information                         role: (inapplicable)                 sourceExtent:  (EX_Extent)                     temporalElement:  (EX_TemporalExtent)                         extent:                           TimeInstant:                             timePosition:  2020