MIT Libraries home GeoData

Title: Grayscale Puerto Rico and the U.S. Virgin Islands Shaded Relief 200- Meter Resolution, Albers projection

Dates

• Issued: 2005
• Coverage: 2006

Publishers

• National Atlas of the United States

Summary

The grayscale Puerto Rico and U.S. Virgin Islands shaded relief data were derived from National Elevation Dataset (NED) data, and show the terrain of Puerto Rico and U.S. Virgin Islands at a resolution of 200 meters. The NED is a raster product assembled by the U.S. Geological Survey, designed to provide national elevation data in a seamless form with a consistent datum, elevation unit, and projection. Data corrections made in the NED assembly process minimize artifacts, permit edge matching, and fill sliver areas of missing data. The National Atlas also includes a Lambert Azimuthal Equal Area projection shaded relief file; this file is the same data in an Albers projection. This layer is part of the 1997-2014 edition National Atlas of the United States. The grayscale shaded relief images were developed to portray the terrain of the United States. They are intended for visual purposes only. The original NED data must be used for conducting analysis and determining elevation values. National Atlas of the United States. (2005). Grayscale Puerto Rico and the U.S. Virgin Islands Shaded Relief 200- Meter Resolution, Albers projection. National Atlas of the United States. Available at: http://purl.stanford.edu/vb513xp0680. The associated world file is included as part of the GeoTIFF. The contents of the world file are: >200.0000 >0.000000 >0.000000 >-200.0000 >-195900.0000 >437900.0000 The following projection file can be used when using ESRI's ArcGIS to view the GeoTIFF (any line breaks should be removed): PROJCS["Albers_NAD_1983_PRVI",GEOGCS["GCS_North_American_1983", DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137.0, 298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree", 0.0174532925199433]],PROJECTION["Albers"],PARAMETER["False_Easting", 0.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",- 66.5],PARAMETER["Standard_Parallel_1",8.0],PARAMETER ["Standard_Parallel_2",18.0],PARAMETER["Latitude_Of_Origin",15.0], UNIT["Meter",1.0]] This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.

Subjects

• Elevation
• Puerto Rico
• United States Virgin Islands
• Digital elevation models
• Topographic maps
• Imagery and Base Maps
• Datasets

Geospatial coordinates

• Bounding Box: BBOX (-68.3579152, -63.7882324, 18.9529335, 17.0601544)
• Geometry: BBOX (-68.3579152, -63.7882324, 18.9529335, 17.0601544)

Provider

Stanford

Rights

• Access rights: Public

Citation

EROS Data Center. Grayscale Puerto Rico and the U.S. Virgin Islands Shaded Relief 200- Meter Resolution, Albers projection. National Atlas of the United States. Raster data. https://purl.stanford.edu/vb513xp0680

Format

GeoTIFF

Languages

• English