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  <titleInfo>
    <title>Grayscale Puerto Rico and the U.S. Virgin Islands Shaded Relief, 200-Meter Resolution</title>
  </titleInfo>
  <name type="corporate">
    <namePart>EROS Data Center</namePart>
    <role>
      <roleTerm type="text" authority="marcrelator">creator</roleTerm>
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  <typeOfResource>software, multimedia</typeOfResource>
  <genre authority="lcgft" valueURI="http://id.loc.gov/authorities/genreForms/gf2011026297">Geospatial data</genre>
  <genre authority="rdacontent" valueURI="http://rdvocab.info/termList/RDAContentType/1001">cartographic dataset</genre>
  <originInfo>
    <publisher>National Atlas of the United States</publisher>
    <place>
      <placeTerm type="text">Reston, Virginia, US</placeTerm>
    </place>
    <dateIssued encoding="w3cdtf" keyDate="yes">2005</dateIssued>
    <dateValid encoding="w3cdtf">2002</dateValid>
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  <language>
    <languageTerm authority="iso639-2b">eng</languageTerm>
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    <form>Raster Dataset</form>
    <digitalOrigin>born digital</digitalOrigin>
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  <subject>
    <cartographics>
      <scale>Scale not given.</scale>
      <projection>EPSG::2163</projection>
      <coordinates>(W 68°25ʹ26ʺ--W 63°33ʹ41ʺ/N 20°28ʹ29ʺ--N 15°56ʹ36ʺ)</coordinates>
    </cartographics>
  </subject>
  <abstract displayLabel="Abstract" lang="eng">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. This layer is part of the 1997-2014 edition National Atlas of the United States.</abstract>
  <abstract displayLabel="Purpose" lang="eng">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.</abstract>
  <note displayLabel="Preferred citation" lang="eng">National Atlas of the United States. (2005). Grayscale Puerto Rico and the U.S. Virgin Islands Shaded Relief, 200-Meter Resolution. National Atlas. Available at: http://purl.stanford.edu/nw837pg7040</note>
  <subject>
    <topic authority="lcsh" authorityURI="http://id.loc.gov/authorities/subjects.html" lang="eng">Altitudes</topic>
  </subject>
  <subject>
    <topic authority="lcsh" authorityURI="http://id.loc.gov/authorities/subjects.html" lang="eng">Digital elevation models</topic>
  </subject>
  <subject>
    <topic authority="lcsh" authorityURI="http://id.loc.gov/authorities/subjects.html" lang="eng">Topographic maps</topic>
  </subject>
  <subject>
    <geographic lang="eng" valueURI="http://sws.geonames.org/6252001/" authority="geonames" authorityURI="http://www.geonames.org/ontology#">United States</geographic>
  </subject>
  <subject>
    <geographic lang="eng" valueURI="http://sws.geonames.org/4566966/" authority="geonames" authorityURI="http://www.geonames.org/ontology#">Puerto Rico</geographic>
  </subject>
  <subject>
    <geographic lang="eng" valueURI="http://sws.geonames.org/4796775/" authority="geonames" authorityURI="http://www.geonames.org/ontology#">United States Virgin Islands</geographic>
  </subject>
  <subject>
    <temporal encoding="w3cdtf">2002</temporal>
  </subject>
  <subject>
    <topic authority="ISO19115TopicCategory" authorityURI="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_TopicCategoryCode" valueURI="elevation">Elevation</topic>
  </subject>
  <subject>
    <topic authority="ISO19115TopicCategory" authorityURI="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_TopicCategoryCode" valueURI="">Geoscientific Information</topic>
  </subject>
  <subject>
    <topic authority="ISO19115TopicCategory" authorityURI="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_TopicCategoryCode" valueURI="imageryBaseMapsEarthCover">Imagery and Base Maps</topic>
  </subject>
  <location>
    <url>http://purl.stanford.edu/nw837pg7040</url>
  </location>
  <recordInfo>
    <recordContentSource>Stanford</recordContentSource>
    <recordIdentifier>edu.stanford.purl:nw837pg7040</recordIdentifier>
    <recordOrigin>This record was translated from ISO 19139 to MODS v.3 using an xsl transformation.</recordOrigin>
    <languageOfCataloging>
      <languageTerm authority="iso639-2b" type="code">eng</languageTerm>
    </languageOfCataloging>
  </recordInfo>
  <extension displayLabel="geo">
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      <rdf:Description rdf:about="http://purl.stanford.edu/nw837pg7040">
        <dc:format>image/tiff; format=GeoTIFF</dc:format>
        <dc:type>Dataset#Raster</dc:type>
        <gml:boundedBy>
          <gml:Envelope gml:srsName="EPSG:4326">
            <gml:lowerCorner>-68.4237961 15.94232</gml:lowerCorner>
            <gml:upperCorner>-63.5622766 20.4748353</gml:upperCorner>
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        <dc:coverage rdf:resource="http://sws.geonames.org/6252001/" dc:language="eng" dc:title="United States"/>
        <dc:coverage rdf:resource="http://sws.geonames.org/4566966/" dc:language="eng" dc:title="Puerto Rico"/>
        <dc:coverage rdf:resource="http://sws.geonames.org/4796775/" dc:language="eng" dc:title="United States Virgin Islands"/>
      </rdf:Description>
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  <subject authority="EPSG" valueURI="http://opengis.net/def/crs/EPSG/0/4326" displayLabel="WGS84">
    <cartographics>
      <scale>Scale not given.</scale>
      <projection>EPSG::4326</projection>
      <coordinates>W 68°25ʹ26ʺ--W 63°33ʹ44ʺ/N 20°28ʹ29ʺ--N 15°56ʹ32ʺ</coordinates>
    </cartographics>
  </subject>
  <note displayLabel="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.</note>
  <relatedItem type="host">
    <titleInfo>
      <title>National atlas of the United States of America, 1997-2014</title>
    </titleInfo>
    <location>
      <url>https://purl.stanford.edu/cv275yx9215</url>
    </location>
    <typeOfResource collection="yes"/>
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  <accessCondition type="useAndReproduction">This item is in the public domain.  There are no restrictions on use.</accessCondition>
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