2015 OLC Lidar DEM: Wasco, WA

Metadata also available as

Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Oregon Department of Geology and Mineral Industries (DOGAMI)
Originator:
Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office for Coastal Management (OCM)
Publication_Date: 20170815
Title: 2015 OLC Lidar DEM: Wasco, WA
Publication_Information:
Publication_Place: Charleston, SC
Publisher: NOAA's Ocean Service (NOS), Office for Coastal Management (OCM)
Online_Linkage: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=6342
Online_Linkage: https://coast.noaa.gov/htdata/raster2/elevation/OLC_wasco_6342
Online_Linkage: https://coast.noaa.gov/dataviewer
Online_Linkage: https://coast.noaa.gov
Description:
Abstract:
WSI collected Light Detection and Ranging (LiDAR) data for the Oregon LiDAR Consortium (OLC) Wasco County, WA, study area. The Oregon LiDAR Consortium's Wasco County 2014-2015 project area of interest (AOI) encompasses 1,020,680 acres. The collection of high resolution geographic data is part of an ongoing pursuit to amass a library of information accessible to government agencies as well as the general public. Settings for LiDAR data capture produced an average resolution of at least eight pulses per square meter. Collections for the six deliveries were done from July 15, 2014 - August 5, 2015. Final products created include RGB extracted (from NAIP imagery) LiDAR point cloud data, three-foot digital elevation models of highest hit and bare earth ground models, one-meter density rasters, 1.5-foot intensity rasters, study area vector shapes, and corresponding statistical data. All final deliverables were projected to Washington State Plane South, using the NAD83(2011) horizontal datum and the NAVD88 (Geoid 12A) vertical datum, with units in US Survey Feet. NOAA OCM changed the vertical units to meters for ingest into the Digital Coast. This metadata was created for the bare earth digital elevation models.
Purpose: Provide high resolution terrain elevation data.
Supplemental_Information:
Final reports for each delivery may be viewed at: https://coast.noaa.gov/htdata/lidar2_z/geoid12b/data/6341/supplemental/
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20140715
Ending_Date: 20150805
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -123.427248
East_Bounding_Coordinate: -122.03767
North_Bounding_Coordinate: 49.26863
South_Bounding_Coordinate: 45.61233
Keywords:
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: elevation
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Bathymetry/Topography
Theme_Keyword: Lidar
Theme_Keyword: Light Detection and Ranging
Theme_Keyword: DEM
Theme_Keyword: Digital Terrain Model
Theme_Keyword: DOGAMI
Theme_Keyword: Elevation data
Theme_Keyword: Bare earth
Theme_Keyword: High-resolution
Theme_Keyword: Bare ground
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: United States
Place_Keyword: Washington
Place_Keyword: Wasco County
Place_Keyword: Pacific Northwest
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.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: DOGAMI
Contact_Person: Jacob Edwards
Contact_Address:
Address_Type: mailing and physical
Address: 800 NE Oregon St. #28, Ste. 965
City: Portland
State_or_Province: OR
Postal_Code: 97232
Country: USA
Contact_Voice_Telephone: 971-673-1557
Contact_Electronic_Mail_Address: jacob.edwards@oregon.gov
Browse_Graphic:
Browse_Graphic_File_Name:
https://coast.noaa.gov/htdata/lidar2_z/geoid12b/data/6334/supplemental/2015_OLC_Chelan_area.kmz
Browse_Graphic_File_Description: A polygon footprint of this data set.
Browse_Graphic_File_Type: kmz
Data_Set_Credit: DOGAMI
Data_Quality_Information:
Logical_Consistency_Report:
Upon receipt from vendor (WSI), all LiDAR data was independently reviewed by staff from the Oregon Department of Geology and Mineral Industries (DOGAMI) to ensure project specifications were met. All data were inventoried for completeness and data were checked for quality, which included examining LiDAR data for errors associated with internal data consistency, model quality, and accuracy.
Completeness_Report:
LiDAR data has been collected and processed for all areas within the project study area.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report: unknown
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
Vertical Accuracy reporting is designed to meet guidelines presented in the National Standard for Spatial Data Accuracy (NSSDA) (FGDC, 1998) and the ASPRS Guidelines for Vertical Accuracy Reporting for LiDAR Data V1.0 (ASPRS, 2004). The statistical model compares known ground survey points (GSPs) to the closest laser point. Vertical accuracy statistical analysis uses ground survey points in open areas where the LiDAR system has a "very high probability" that the sensor will measure the ground surface and reports the fundamental vertical accuracy value (FVA=1.96*RMSE). For the OLC Wasco study area, a total of 15,430 GSPs were collected. No additional ground survey points were collected for independent verification. For more information about the vertical accuracy, please refer to the delivery reports, listed above in the Supplemental_Information field of this metadata record.
Quantitative_Vertical_Positional_Accuracy_Assessment:
Vertical_Positional_Accuracy_Value: 0.06
Vertical_Positional_Accuracy_Explanation:
Compiled to meet fundamental vertical accuracy value (FVA=1.96*RMSE) in meters.
Lineage:
Process_Step:
Process_Description:
The LiDAR survey occurred between July 15, 2014 and August 5, 2015 utilizing a Leica ALS70 sensor mounted in a Cessna Grand Caravan. The system was programmed to emit single pulses at a rate of 198 kilohertz and flown around 1,400 meters above ground level (AGL), capturing a scan angle of +/-15 degrees from nadir (field of view equal to 30 degrees). These settings are developed to yield points with an average native density of greater than eight pulses per square meter over terrestrial surfaces. These settings were developed to yield points with an average native density of greater than eight pulses per square meter over terrestrial surfaces. The study area was surveyed with opposing flight line side-lap of greater than 60 percent with at least 100 percent overlap to reduce laser shadowing and increase surface laser painting. The system allows up to four range measurements per pulse, and all discernible laser returns were processed for the output dataset. To solve for laser point position, an accurate description of aircraft position and attitude is vital. Aircraft position is described as x, y, and z and was measured twice per second (two hertz) by an onboard differential GPS unit. Aircraft attitude is described as pitch, roll, and yaw (heading) and was measured 200 times per second (200 hertz) from an onboard inertial measurement unit (IMU).
Process_Date: 2015
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: WSI
Contact_Address:
Address_Type: mailing and physical
Address: 421 SW 6th Avenue, Suite 800
City: Portland
State_or_Province: OR
Postal_Code: 97204
Contact_Voice_Telephone: (503) 505-5100
Process_Step:
Process_Description:
The NOAA Office for Coastal Management (OCM) received the files in the proprietary ESRI grid format. The files were converted to floating point GeoTIFF format using gdal_translate from GDAL version 2.1.1. Vertical units were changed to meters in that process.
Process_Date: 201707
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: NOAA Office for Coastal Management
Contact_Address:
Address_Type: mailing and physical
Address: 2234 South Hobson Avenue
City: Charleston
State_or_Province: SC
Postal_Code: 29405-2413
Contact_Voice_Telephone: 843-740-1202
Contact_Electronic_Mail_Address: coastal.info@noaa.gov
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Raster
Raster_Object_Information:
Raster_Object_Type: Grid Cell
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: State Plane Coordinate System 1983
State_Plane_Coordinate_System:
SPCS_Zone_Identifier: 4602
Lambert_Conformal_Conic:
Standard_Parallel: 43
Standard_Parallel: 45.5
Longitude_of_Central_Meridian: -120.5
Latitude_of_Projection_Origin: 41.75
False_Easting: 1312335.958005249
False_Northing: 0.000000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: row and column
Coordinate_Representation:
Abscissa_Resolution: 3
Ordinate_Resolution: 3
Planar_Distance_Units: feet
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983 (2011)
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257222
Vertical_Coordinate_System_Definition:
Altitude_System_Definition:
Altitude_Datum_Name: North American Vertical Datum of 1988 (NAVD88; Geoid12a)
Altitude_Resolution: 0.001
Altitude_Distance_Units: Meters
Altitude_Encoding_Method:
Explicit elevation coordinate included with horizontal coordinates
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: NOAA Office for Coastal Management
Contact_Address:
Address_Type: mailing and physical
Address: 2234 South Hobson Avenue
City: Charleston
State_or_Province: SC
Postal_Code: 29405-2413
Contact_Voice_Telephone: 843-740-1202
Contact_Electronic_Mail_Address: coastal.info@noaa.gov
Resource_Description: Downloadable Data
Distribution_Liability:
Any conclusions drawn from the analysis of this information are not the responsibility of the Oregon Department of Geology and Mineral Industries (DOGAMI), FEMA, the Office for Coastal Management or its partners.
Custom_Order_Process:
This data can be obtained on-line at the following URL: https://coast.noaa.gov/dataviewer
Metadata_Reference_Information:
Metadata_Date: 20170805
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: NOAA Office for Coastal Management
Contact_Address:
Address_Type: mailing and physical
Address: 2234 South Hobson Avenue
City: Charleston
State_or_Province: SC
Postal_Code: 29405-2413
Contact_Voice_Telephone: 843-740-1202
Contact_Electronic_Mail_Address: coastal.info@noaa.gov
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Generated by mp version 2.9.32 on Wed Aug 9 06:59:49 2017