Color North America Shaded Relief: 1-Kilometer Resolution

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Abstract/Contents

Abstract: The North America Shaded Relief data were derived from the GTOPO30 elevation data. GTOPO30 is a global digital elevation model (DEM) with a horizontal grid spacing of 30 arc seconds (approximately 1 kilometer). GTOPO30 was derived from several raster and vector sources of topographic information. It was developed between 1993 and 1996 through a collaborative effort led by staff at the U.S. Geological Survey's EROS Data Center (EDC). The following organizations participated by contributing funding or source data: the National Aeronautics and Space Administration (NASA), the United Nations Environment Programme/Global Resource Information Database (UNEP/GRID), the U.S. Agency for International Development (USAID), the Instituto Nacional de Estadistica Geografica e Informatica (INEGI) of Mexico, the Geographical Survey Institute (GSI) of Japan, Manaaki Whenua Landcare Research of New Zealand, and the Scientific Committee on Antarctic Research (SCAR). This file is a replacement for the January 2003 map layer. This map layer was previously distributed as North America Shaded Relief. This layer is part of the 1997-2014 edition National Atlas of the United States.
Purpose: The Shaded Relief image was developed to portray the terrain of North America. It is intended for visual purposes only. The original GTOPO30 data must be used for conducting analysis and determining elevation values.

Type of resource	cartographic, software, multimedia
Form	GeoTIFF
Place	Reston, Virginia, US
Publisher	National Atlas of the United States
Date valid	2010
Publication date	2003
Edition	3
Language	English
Digital origin	born digital
Map data	Scale not given. ; EPSG::2163 W 180°--E 180°/N 86°15ʹ14ʺ--N 3°5ʹ31ʺW 180°--E 179°59ʹ56ʺ/N 86°15ʹ10ʺ--N 3°5ʹ14ʺ, Scale not given ; EPSG::4326

Creator	USGS National Center for EROS

Subject	Digital elevation models
Subject	Topographic maps
Subject	North America
Subject	Canada
Subject	Greenland
Subject	Iceland
Subject	Mexico
Subject	Puerto Rico
Subject	United States Virgin Islands
Subject	United States
Subject	Alaska
Subject	Alabama
Subject	Arizona
Subject	Arkansas
Subject	Colorado
Subject	Connecticut
Subject	Delaware
Subject	Florida
Subject	Georgia
Subject	Hawaii
Subject	Idaho
Subject	Illinois
Subject	Indiana
Subject	Iowa
Subject	Kansas
Subject	Kentucky
Subject	Louisiana
Subject	Maine
Subject	Maryland
Subject	Massachusetts
Subject	Michigan
Subject	Minnesota
Subject	Mississippi
Subject	Missouri
Subject	Montana
Subject	Nebraska
Subject	Nevada
Subject	New Hampshire
Subject	New Jersey
Subject	New Mexico
Subject	New York (State)
Subject	North Carolina
Subject	North Dakota
Subject	Ohio
Subject	Oklahoma
Subject	Oregon
Subject	Pennsylvania
Subject	Rhode Island
Subject	South Carolina
Subject	South Dakota
Subject	Tennessee
Subject	Texas
Subject	Utah
Subject	Vermont
Subject	Virginia
Subject	Washington (D.C.)
Subject	Washington (State)
Subject	West Virginia
Subject	Wisconsin
Subject	Wyoming
Subject	1993-2002
Subject	Imagery and Base Maps
Subject	Elevation
Subject	Geoscientific Information
Genre	Geospatial data
Genre	Cartographic dataset

Supplemental information	The associated world file is included as part of the GeoTIFF. The contents of the world file are: >1000.0000 >0.000000 >0.000000 >-1000.0000 >-6086129.0000 >4488261.0000 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]]
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/sy611mt4789

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: National Atlas of the United States. (2003). Color North America Shaded Relief: 1-Kilometer Resolution. National Atlas of the United States. Available at: http://purl.stanford.edu/sy611mt4789.

National atlas of the United States of America, 1997-2014

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