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    <dct:description>This raster data set represents water-level change in the High Plains aquifer of the United States from 2000 to 2005, in feet. The High Plains aquifer underlies 112.6 million acres (176,000 square miles) in parts of eight States: Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming. Water-level declines occurred in parts of the High Plains aquifer soon after the onset of substantial irrigation with groundwater (about 1950). This data set was generated in ESRI ArcInfo Workstation Version 9.3, which is a geographic information system (GIS), using water-level-change data from wells measured in 2000 and 2005 and from some additional wells in New Mexico, which were measured in 2001, 2002, 2006, and 2007. For this data set, areas of no substantial change were designated as areas where water-level change was between a rise of 1 foot and a decline of 1 foot; the raster was set to zero in the areas of no substantial change.</dct:description>
        <dcat:keyword>wyoming</dcat:keyword>
        <dcat:keyword>south dakota</dcat:keyword>
        <dcat:keyword>great plains</dcat:keyword>
        <dcat:keyword>new mexico</dcat:keyword>
        <dcat:keyword>ground water</dcat:keyword>
        <dcat:keyword>oklahoma</dcat:keyword>
        <dcat:keyword>kansas</dcat:keyword>
        <dcat:keyword>high plains aquifer</dcat:keyword>
        <dcat:keyword>high plains</dcat:keyword>
        <dcat:keyword>ogallala aquifer</dcat:keyword>
        <dcat:keyword>nebraska</dcat:keyword>
        <dcat:keyword>groundwater</dcat:keyword>
        <dcat:keyword>water-level change</dcat:keyword>
        <dcat:keyword>2000 to 2005</dcat:keyword>
        <dcat:keyword>texas</dcat:keyword>
        <dcat:keyword>aquifers</dcat:keyword>
        <dcat:keyword>colorado</dcat:keyword>
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    <dct:identifier>water-level-change-high-plains-aquifer-2000-to-2005</dct:identifier>
    <dct:title>Water-level change, High Plains aquifer, 2000 to 2005</dct:title>
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            <rdf:value>["Use Constraints: This data has a resolution of 500 meters and should not be used for more detailed analysis.", "Access Constraints: None"]</rdf:value>
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        <dct:relation>
          <rdf:Description>
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            <rdf:value>Illustration of the dataset.</rdf:value>
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          <rdf:Description>
            <rdfs:label>frequency-of-update</rdfs:label>
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            <rdf:value>["Although these data have been used by the U.S. Geological Survey, U.S. Department of the Interior, no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of these data, software, or related materials. The use of firm, trade, or brand names in this report is for identification purposes only and does not constitute endorsement by the U.S. Geological Survey. The names mentioned in this document may be trademarks or registered trademarks of their respective trademark owners."]</rdf:value>
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            <rdf:value>Water NSDI Node Spatial Datasets</rdf:value>
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  </dcat:Dataset>
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