Grayscale Alaska Shaded Relief - 200-Meter Resolution
Abstract/Contents
- Abstract
- The grayscale Alaska shaded relief data were derived from National Elevation Dataset (NED) data, and show the terrain of Alaska 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. This layer is part of the 1997-2014 edition National Atlas of the United States.
- Purpose
- The grayscale shaded relief images were developed to portray the terrain of the United States. They are intended for visual purposes only. The original National Elevation Dataset (NED) data must be used for conducting analysis and determining elevation values.
Description
Type of resource | cartographic, software, multimedia |
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Form | GeoTIFF |
Place | Reston, Virginia, US |
Publisher | National Atlas of the United States |
Date valid | 2002 |
Publication date | 2005 |
Language | English |
Digital origin | born digital |
Map data | Scale not given. ; EPSG::2163 W 180°--E 180°/N 76°9ʹ34ʺ--N 40°9ʹ39ʺW 180°--E 179°59ʹ19ʺ/N 76°9ʹ34ʺ--N 40°9ʹ18ʺ, Scale not given ; EPSG::4326 |
Creators/Contributors
Creator | EROS Data Center |
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Subjects
Subject | Altitudes |
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Subject | Digital elevation models |
Subject | Topographic maps |
Subject | United States |
Subject | Alaska |
Subject | 2002 |
Subject | Imagery and Base Maps |
Subject | Elevation |
Subject | Geoscientific Information |
Genre | Geospatial data |
Genre | Cartographic dataset |
Bibliographic information
Supplemental information | 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 >-4451900.0000 >4175900.0000 The following projection file can be used when using ESRI's ArcGIS to view the GeoTIFF (any line breaks should be removed): PROJCS["NAD_1983_Lambert_Azimuthal_Equal_Area",GEOGCS ["GCS_Sphere_ARC_INFO",DATUM["D_Sphere_ARC_INFO",SPHEROID ["Sphere_ARC_INFO",6370997.0,0.0]],PRIMEM["Greenwich",0.0], UNIT["Degree",0.0174532925199433]],PROJECTION ["Lambert_Azimuthal_Equal_Area"],PARAMETER["False_Easting",0.0], PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian", -100.0],PARAMETER["Latitude_Of_Origin",45.0],UNIT["Meter",1.0]] |
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WGS84 Cartographics | This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection. |
Location | https://purl.stanford.edu/sb465jq2544 |
Access conditions
- Use and reproduction
- This item is in the public domain. There are no restrictions on use.
- Copyright
- This work is in the Public Domain, meaning that it is not subject to copyright.
Preferred citation
- Preferred citation
- National Atlas of the United States. (2005). Grayscale Alaska Shaded Relief - 200-Meter Resolution. National Atlas of the United States. Available at: http://purl.stanford.edu/sb465jq2544.
Collection
National atlas of the United States of America, 1997-2014
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