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  <dcat:Dataset rdf:about="http://catalog.data.gov/dataset/airborne-gravity-ngs-gravity-data-for-the-us-and-territories-2008-2022-national-geospatial-dat">
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    <dct:description>Gravity for the Re-definition of the American Vertical Datum (GRAV-D) is a project initiated by NOAA's National Geodetic Survey to collect and monitor gravity data suitable for the re-definition of the vertical datum for at least the United States and territories. Airborne gravity data will be collected from 2008-2022, processed, and released periodically in geographic blocks. Each block is comprised of one or more surveys. The data will be available at http://www.ngs.noaa.gov/GRAV-D/data_products.shtml in ASCII text format. Some data collection has and will be done in conjunction with partners, such as the US Geological Survey, National Geospatial-Intelligence Agency, Bureau of Land Management, and the Naval Research Laboratory.</dct:description>
        <dcat:keyword>marine gravity field</dcat:keyword>
        <dcat:keyword>atmosphere</dcat:keyword>
        <dcat:keyword>envisat</dcat:keyword>
        <dcat:keyword>solid earth</dcat:keyword>
        <dcat:keyword>geopotential height</dcat:keyword>
        <dcat:keyword>datum</dcat:keyword>
        <dcat:keyword>pacific ocean</dcat:keyword>
        <dcat:keyword>topex/poseidion</dcat:keyword>
        <dcat:keyword>rhode island</dcat:keyword>
        <dcat:keyword>north america</dcat:keyword>
        <dcat:keyword>e90-a</dcat:keyword>
        <dcat:keyword>height modernization</dcat:keyword>
        <dcat:keyword>nevada</dcat:keyword>
        <dcat:keyword>cessna citation ii</dcat:keyword>
        <dcat:keyword>continent</dcat:keyword>
        <dcat:keyword>wyoming</dcat:keyword>
        <dcat:keyword>minnesota</dcat:keyword>
        <dcat:keyword>wp-3d orion</dcat:keyword>
        <dcat:keyword>instrument</dcat:keyword>
        <dcat:keyword>location</dcat:keyword>
        <dcat:keyword>puerto rico</dcat:keyword>
        <dcat:keyword>orthometric height</dcat:keyword>
        <dcat:keyword>maryland</dcat:keyword>
        <dcat:keyword>texas</dcat:keyword>
        <dcat:keyword>nsrs</dcat:keyword>
        <dcat:keyword>rc-12</dcat:keyword>
        <dcat:keyword>iowa</dcat:keyword>
        <dcat:keyword>united states of america</dcat:keyword>
        <dcat:keyword>michigan</dcat:keyword>
        <dcat:keyword>oceans</dcat:keyword>
        <dcat:keyword>utah</dcat:keyword>
        <dcat:keyword>aleutian islands</dcat:keyword>
        <dcat:keyword>wp-3 orion</dcat:keyword>
        <dcat:keyword>spatial reference</dcat:keyword>
        <dcat:keyword>virigina</dcat:keyword>
        <dcat:keyword>ellipsoid height</dcat:keyword>
        <dcat:keyword>lrgm</dcat:keyword>
        <dcat:keyword>pilatus pc-12</dcat:keyword>
        <dcat:keyword>hawaii</dcat:keyword>
        <dcat:keyword>new mexico</dcat:keyword>
        <dcat:keyword>gulfstream 1000 (695a)</dcat:keyword>
        <dcat:keyword>ohio</dcat:keyword>
        <dcat:keyword>eastern pacific ocean</dcat:keyword>
        <dcat:keyword>cessna conquest</dcat:keyword>
        <dcat:keyword>geophysical</dcat:keyword>
        <dcat:keyword>navd88</dcat:keyword>
        <dcat:keyword>national spatial reference system</dcat:keyword>
        <dcat:keyword>western pacific ocean</dcat:keyword>
        <dcat:keyword>gulfstream jet prop commander 1000 (695a)</dcat:keyword>
        <dcat:keyword>oklahoma</dcat:keyword>
        <dcat:keyword>delaware</dcat:keyword>
        <dcat:keyword>maine</dcat:keyword>
        <dcat:keyword>pc-12</dcat:keyword>
        <dcat:keyword>virgin islands</dcat:keyword>
        <dcat:keyword>arkansas</dcat:keyword>
        <dcat:keyword>gravity field and steady-state ocean circulation explorer</dcat:keyword>
        <dcat:keyword>ggos</dcat:keyword>
        <dcat:keyword>beechcraft king air rc-12</dcat:keyword>
        <dcat:keyword>arizona</dcat:keyword>
        <dcat:keyword>wisconsin</dcat:keyword>
        <dcat:keyword>vertical</dcat:keyword>
        <dcat:keyword>gps receivers</dcat:keyword>
        <dcat:keyword>aircraft</dcat:keyword>
        <dcat:keyword>national geospatial data asset</dcat:keyword>
        <dcat:keyword>california</dcat:keyword>
        <dcat:keyword>inertial measurement units</dcat:keyword>
        <dcat:keyword>government agencies-u.s. federal agencies</dcat:keyword>
        <dcat:keyword>doc/noaa/nos/ngs</dcat:keyword>
        <dcat:keyword>florida</dcat:keyword>
        <dcat:keyword>alaska</dcat:keyword>
        <dcat:keyword>geoid properties</dcat:keyword>
        <dcat:keyword>gravimeters</dcat:keyword>
        <dcat:keyword>jason-1</dcat:keyword>
        <dcat:keyword>jason-2</dcat:keyword>
        <dcat:keyword>insitu/laboratory instruments</dcat:keyword>
        <dcat:keyword>colorado</dcat:keyword>
        <dcat:keyword>guam</dcat:keyword>
        <dcat:keyword>washington</dcat:keyword>
        <dcat:keyword>in situ land-based platform</dcat:keyword>
        <dcat:keyword>lacoste-romberg gravity meter</dcat:keyword>
        <dcat:keyword>tennessee</dcat:keyword>
        <dcat:keyword>airborne gravity</dcat:keyword>
        <dcat:keyword>ers1</dcat:keyword>
        <dcat:keyword>ers2</dcat:keyword>
        <dcat:keyword>earth science</dcat:keyword>
        <dcat:keyword>mississippi</dcat:keyword>
        <dcat:keyword>south dakota</dcat:keyword>
        <dcat:keyword>geodetic/global positioning</dcat:keyword>
        <dcat:keyword>goce</dcat:keyword>
        <dcat:keyword>platform</dcat:keyword>
        <dcat:keyword>new jersey</dcat:keyword>
        <dcat:keyword>altitude</dcat:keyword>
        <dcat:keyword>north carolina</dcat:keyword>
        <dcat:keyword>new york</dcat:keyword>
        <dcat:keyword>indiana</dcat:keyword>
        <dcat:keyword>northern pacific ocean</dcat:keyword>
        <dcat:keyword>louisiana</dcat:keyword>
        <dcat:keyword>gps</dcat:keyword>
        <dcat:keyword>north atlantic ocean</dcat:keyword>
        <dcat:keyword>ngda</dcat:keyword>
        <dcat:keyword>oregon</dcat:keyword>
        <dcat:keyword>connecticut</dcat:keyword>
        <dcat:keyword>central pacific ocean</dcat:keyword>
        <dcat:keyword>national geodetic survey</dcat:keyword>
        <dcat:keyword>national ocean service</dcat:keyword>
        <dcat:keyword>noaa</dcat:keyword>
        <dcat:keyword>u.s. department of commerce</dcat:keyword>
        <dcat:keyword>grace</dcat:keyword>
        <dcat:keyword>georgia</dcat:keyword>
        <dcat:keyword>american samoa</dcat:keyword>
        <dcat:keyword>kentucky</dcat:keyword>
        <dcat:keyword>pennsylvania</dcat:keyword>
        <dcat:keyword>geodetic</dcat:keyword>
        <dcat:keyword>nebraska</dcat:keyword>
        <dcat:keyword>new hampshire</dcat:keyword>
        <dcat:keyword>south carolina</dcat:keyword>
        <dcat:keyword>ground-based observations</dcat:keyword>
        <dcat:keyword>geoid</dcat:keyword>
        <dcat:keyword>geodetics/gravity</dcat:keyword>
        <dcat:keyword>north dakota</dcat:keyword>
        <dcat:keyword>beechcraft king air e90-a</dcat:keyword>
        <dcat:keyword>north american vertical datum of 1988</dcat:keyword>
        <dcat:keyword>gravitation field</dcat:keyword>
        <dcat:keyword>hawaiian islands</dcat:keyword>
        <dcat:keyword>global geodetic observing system</dcat:keyword>
        <dcat:keyword>geodetic control theme</dcat:keyword>
        <dcat:keyword>northern marianas islands</dcat:keyword>
        <dcat:keyword>marine geophysics</dcat:keyword>
        <dcat:keyword>west virigina</dcat:keyword>
        <dcat:keyword>global positioning system satellites</dcat:keyword>
        <dcat:keyword>gravity</dcat:keyword>
        <dcat:keyword>illinois</dcat:keyword>
        <dcat:keyword>caribbean sea</dcat:keyword>
        <dcat:keyword>gulf of mexico</dcat:keyword>
        <dcat:keyword>idaho</dcat:keyword>
        <dcat:keyword>global earth observation system of systems</dcat:keyword>
        <dcat:keyword>gravity recovery and climate experiment</dcat:keyword>
        <dcat:keyword>kansas</dcat:keyword>
        <dcat:keyword>montana</dcat:keyword>
        <dcat:keyword>massachusetts</dcat:keyword>
        <dcat:keyword>lockheed wp-3d orion</dcat:keyword>
        <dcat:keyword>atlantic ocean</dcat:keyword>
        <dcat:keyword>vermont</dcat:keyword>
        <dcat:keyword>doc/noaa/nesdis/ngdc</dcat:keyword>
        <dcat:keyword>earth observation satellites</dcat:keyword>
        <dcat:keyword>ocean</dcat:keyword>
        <dcat:keyword>data center</dcat:keyword>
        <dcat:keyword>missouri</dcat:keyword>
        <dcat:keyword>alabama</dcat:keyword>
        <dcat:keyword>geoss</dcat:keyword>
        <dcat:keyword>national geophysical data center</dcat:keyword>
        <dcat:keyword>nesdis</dcat:keyword>
        <dcat:keyword>noaa</dcat:keyword>
        <dcat:keyword>u.s. department of commerce</dcat:keyword>
    <foaf:homepage rdf:resource="http://catalog.data.gov/dataset/airborne-gravity-ngs-gravity-data-for-the-us-and-territories-2008-2022-national-geospatial-dat"></foaf:homepage>
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    <dct:identifier>airborne-gravity-ngs-gravity-data-for-the-us-and-territories-2008-2022-national-geospatial-dat</dct:identifier>
    <dct:title>Airborne Gravity: NGS' Gravity Data for the US and Territories (2008-2022) - National Geospatial Data Asset (NGDA) Airborne Gravity (GRAV-D)</dct:title>
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                            <rdf:value>ascii</rdf:value>
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               <dct:title>Web Page</dct:title>
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               <dct:title>Web Page</dct:title>
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        <dcat:distribution>
            <dcat:Distribution>
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               <dct:title>Web Page</dct:title>
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        </dcat:distribution>
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          <rdf:Description>
            <rdfs:label>bbox-east-long</rdfs:label>
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            <rdfs:label>bbox-north-lat</rdfs:label>
            <rdf:value>72</rdf:value>
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          <rdf:Description>
            <rdfs:label>coupled-resource</rdfs:label>
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            <rdfs:label>spatial_harvester</rdfs:label>
            <rdf:value>True</rdf:value>
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            <rdfs:label>bbox-south-lat</rdfs:label>
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          <rdf:Description>
            <rdfs:label>spatial-reference-system</rdfs:label>
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          </rdf:Description>
        </dct:relation>
        <dct:relation>
          <rdf:Description>
            <rdfs:label>spatial</rdfs:label>
            <rdf:value>{"type": "Polygon", "coordinates": [[[-180.0, -18.0], [-65.0, -18.0], [-65.0, 72.0], [-180.0, 72.0], [-180.0, -18.0]]]}</rdf:value>
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        <dct:relation>
          <rdf:Description>
            <rdfs:label>progress</rdfs:label>
            <rdf:value>underDevelopment</rdf:value>
          </rdf:Description>
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        <dct:relation>
          <rdf:Description>
            <rdfs:label>access_constraints</rdfs:label>
            <rdf:value>["Use Constraints: Must read and fully comprehend the metadata prior to use, acknowledgment of the Originator when using the data set as a source, data should not be used beyond the limits of the source scale", "Access Constraints: None"]</rdf:value>
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          <rdf:Description>
            <rdfs:label>temporal-extent-begin</rdfs:label>
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          <rdf:Description>
            <rdfs:label>bbox-west-long</rdfs:label>
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            <rdfs:label>metadata-date</rdfs:label>
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          <rdf:Description>
            <rdfs:label>licence</rdfs:label>
            <rdf:value>["While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty."]</rdf:value>
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            <rdf:value>[{"name": "NOAA's National Geodetic Survey", "roles": ["pointOfContact"]}]</rdf:value>
          </rdf:Description>
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            <rdfs:label>temporal-extent-end</rdfs:label>
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          <rdf:Description>
            <rdfs:label>spatial-data-service-type</rdfs:label>
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            <rdfs:label>harvest_source_title</rdfs:label>
            <rdf:value>NCDDC-NOS-NGS</rdf:value>
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