United States Army Corps of Engineers
20121227
Puerto Rico 2009-10 Orthographic Imagery
remote-sensing image
Jacksonville, FL
U.S. Army Corps of Engineers, Jacksonville District, Geomatics Section
https://coast.noaa.gov/dataviewer/#/imagery/search/where:ID=1421
https://coast.noaa.gov/htdata/raster2/imagery/PuertoRico_2009_1421
https://coast.noaa.gov/digitalcoast
This file is a single ESRI raster catalog comprised of a collection of individual GeoTIFFs of the island of Puerto Rico (Commonwealth of Puerto Rico). An orthographic aerial image is remotely sensed image data in which displacement of features in the image caused by terrain relief and sensor orientation have been mathematically removed. Orthographic imagery combines the image characteristics of a photograph with the geometric qualities of a map. The source imagery was obtained from October 2009 through January 2010 and used to produce orthophotos with a 0.3 meter (approximately 1 foot) ground sample distance (GSD). The raw imagery was captured at 12- bit radiometric resolution and converted to 8-bit radiometry during post processing. The imagery was captured with the equivalent of approximately 60% forward overlap between adjacent exposures and 30% sidelap between all adjacent flight lines utilizing a Leica ADS40 digital sensor. The orthographic imagery is available as 4-band (RGBI) GeoTIFF formatted digital images. The projected coordinate system is State Plane Puerto Rico / US Virgin Islands (Zone 5200), NAD 83, GRS 80, Units Meters.
The purpose of the project is to provide the United States Army Corps of Engineers with updated digital orthographic aerial imagery covering all of the Commonwealth of Puerto Rico and the U.S. Virgin Islands. The Corps regularly uses digital orthographic imagery to support regulatory, land management and acquisition, planning, engineering and habitat restoration projects. The data may also become available to local, state and other federal agencies for their specific management and analysis needs.
The data design specifications for this product includes several directed to insure its quality, consistency, and usability. These specifications address some of the technical issues associated with orthoimage production: 1) the tops of buildings and other structures elevated above the surface of the ground 'tilt' away from the center point of the source imagery and from their own bases as a result of perspective and their height which is not compensated for in digital elevation models of the ground surface and 2) individual orthoimages may be assembled from several source aerial images.
2009
2010
Date of image acquisition
None Planned
-67.304749
-65.231528
18.547086
17.867503
ISO 19115 Topic Category
imageryBaseMapsEarthCover
None
Remotely Sensed Imagery/Photos
framework
orthoimage
None
Puerto Rico
U.S. Virgin Islands
Culebra
Vieques
None
Acknowledgment of the United States Army Corps of Engineers would be appreciated for products derived from these data.
U.S. Army Corps of Engineers, Jacksonville District, Geomatics Section
Mailing Address
701 San Marco Blvd.
Jacksonville
FL
32207
US
904-232-2214
904-232-2214
ted.n.schall@usace.army.mil
Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; ESRI ArcGIS 10.0.3.3600
These specifications address some of the technical issues associated with orthoimage production: 1) the tops of buildings and other structures elevated above the surface of the ground 'tilt' away from the center point of the source imagery and from their own bases as a result of perspective and their height which is not compensated for in digital elevation models of the ground surface and 2) individual orthoimages may be assembled from several source aerial images.
These data cover all of the islands of Puerto Rico, Culebra, Vieques, and the US Virgin Islands. These specifications address some of the technical issues associated with orthoimage production: 1) the tops of buildings and other structures elevated above the surface of the ground 'tilt' away from the center point of the source imagery and from their own bases as a result of perspective and their height which is not compensated for in digital elevation models of the ground surface and 2) individual orthoimages may be assembled from several source aerial images.
Horizontal positional accuracy of the set of orthographic images was determined by comparing the positions of forty-five well defined points to their corresponding field positions as determined by GPS positioning methods. The comparison of the ortho and field collected data resulted in the determination of the following statistics: Horizontal Root Mean Square Error (RMSEh) = 0.62 meters; Horizontal Standard Deviation (Sh) = 0.39 meters; National Standard for Spatial Data Accuracy Circular Error (NSSDAcircular) = 1.08 meters.
1.08
Horizontal positional accuracy of the set of orthographic images was determined by comparing the positions of forty-five well defined points to their corresponding field positions as determined by GPS positioning methods. The comparison of the ortho and field collected data resulted in the determination of the following statistics: Horizontal Root Mean Square Error (RMSEh) = 0.62 meters; Horizontal Standard Deviation (Sh) = 0.39 meters; National Standard for Spatial Data Accuracy Circular Error (NSSDAcircular) = 1.08 meters.
United States Army Corps of Engineers
20121227
Puerto Rico 2009-10 Orthographic Imagery
remote-sensing image
Jacksonville, FL
U.S. Army Corps of Engineers, Jacksonville District, Geomatics Section
2400
disc
2009
2010
Date of image acquisition
dig_aer_img
Flight planning, image acquisition, image processing and image packaging.
This file is a single ESRI raster catalog comprised of a collection of individual GeoTIFFs of the island of Puerto Rico (Commonwealth of Puerto Rico). An orthographic aerial image is remotely sensed image data in which displacement of features in the image caused by terrain relief and sensor orientation have been mathematically removed. Orthographic imagery combines the image characteristics of a photograph with the geometric qualities of a map. The source imagery was obtained from October 2009 through January 2010 and used to produce orthophotos with a 0.3 meter (approximately 1 foot) ground sample distance (GSD). The raw imagery was captured at 12- bit radiometric resolution and converted to 8-bit radiometry during post processing. The imagery was captured with the equivalent of approximately 60% forward overlap between adjacent exposures and 30% sidelap between all adjacent flight lines utilizing a Leica ADS40 digital sensor. The orthographic imagery is available as 4-band (RGBI) GeoTIFF formatted digital images. The projected coordinate system is State Plane Puerto Rico / US Virgin Islands (Zone 5200), NAD 83, GRS 80, Units Meters.
dig_aer_img
20080217
U.S. Army Corps of Engineers, Jacksonville District, Geomatics Section
Mailing Address
701 San Marco Blvd.
Jacksonville
FL
32207
US
904-232-2214
904-232-2214
ted.n.schall@usace.army.mil
8:00 a.m. to 5:00 p.m.
Raster
State Plane Coordinate System 1983
5200
18.0333333333333
18.4333333333333
-66.4333333333334
17.8333333333333
200000
200000
coordinate pair
0.3000
0.3000
Meter
D_North_American_1983
GRS_1980
6378137
298.257222101
NOAA Office for Coastal Management
mailing and physical
2234 South Hobson Avenue
Charleston
SC
29405-2413
843-740-1202
coastal.info@noaa.gov
Downloadable Data
Users must assume responsibility to determine the usability of these data.
20160523
20160523
U.S. Army Corps of Engineers, Jacksonville District, Geomatics Section
Mailing Address
701 San Marco Blvd.
Jacksonville
FL
32207
US
904-232-2214
904-232-2214
ted.n.schall@usace.army.mil
Monday through Friday 8:00 AM to 5:00 PM (Central Time)
FGDC Content Standard for Digital Geospatial Metadata
FGDC-STD-001-1998
local time