<?xml version="1.0" encoding="UTF-8"?>
<gmd:MD_Metadata xmlns:gmd="http://www.isotc211.org/2005/gmd" xmlns:gco="http://www.isotc211.org/2005/gco" xmlns:gml="http://www.opengis.net/gml" xmlns:gmx="http://www.isotc211.org/2005/gmx" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="http://www.isotc211.org/2005/gmd http://www.isotc211.org/2005/gmd/gmd.xsd http://www.isotc211.org/2005/gmx http://www.isotc211.org/2005/gmx/gmx.xsd">
  <gmd:fileIdentifier>
    <gco:CharacterString>edu.ucar.gdex::d607000</gco:CharacterString>
  </gmd:fileIdentifier>
  <gmd:language>
    <gmd:LanguageCode codeList="http://www.loc.gov/standards/iso639-2/" codeListValue="eng; USA">eng; USA</gmd:LanguageCode>
  </gmd:language>
  <gmd:characterSet>
    <gmd:MD_CharacterSetCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_CharacterSetCode" codeListValue="utf8">utf-8</gmd:MD_CharacterSetCode>
  </gmd:characterSet>
  <gmd:hierarchyLevel>
    <gmd:MD_ScopeCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_ScopeCode" codeListValue="dataset">dataset</gmd:MD_ScopeCode>
  </gmd:hierarchyLevel>
  <gmd:contact>
    <gmd:CI_ResponsibleParty>
      <gmd:organisationName>
        <gco:CharacterString>NSF NCAR Geoscience Data Exchange</gco:CharacterString>
      </gmd:organisationName>
      <gmd:contactInfo>
        <gmd:CI_Contact>
          <gmd:address>
            <gmd:CI_Address>
              <gmd:electronicMailAddress>
                <gco:CharacterString>datahelp@ucar.edu</gco:CharacterString>
              </gmd:electronicMailAddress>
            </gmd:CI_Address>
          </gmd:address>
          <gmd:onlineResource>
            <gmd:CI_OnlineResource>
              <gmd:linkage>
                <gmd:URL>https://gdex.ucar.edu</gmd:URL>
              </gmd:linkage>
              <gmd:name>
                <gco:CharacterString>NSF NCAR Geoscience Data Exchange</gco:CharacterString>
              </gmd:name>
              <gmd:description>
                <gco:CharacterString>The Geoscience Data Exchange (GDEX), managed by the Computational and Information Systems Laboratory (CISL) at NSF NCAR, contains a large collection of meteorological, atmospheric composition, and oceanographic observations, and operational and reanalysis model outputs, integrated with NSF NCAR High Performance Compute services to support atmospheric and geosciences research.</gco:CharacterString>
              </gmd:description>
              <gmd:function>
                <gmd:CI_OnLineFunctionCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode" codeListValue="download">download</gmd:CI_OnLineFunctionCode>
              </gmd:function>
            </gmd:CI_OnlineResource>
          </gmd:onlineResource>
        </gmd:CI_Contact>
      </gmd:contactInfo>
      <gmd:role>
        <gmd:CI_RoleCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="pointOfContact">pointOfContact</gmd:CI_RoleCode>
      </gmd:role>
    </gmd:CI_ResponsibleParty>
  </gmd:contact>
  <gmd:dateStamp>
    <gco:DateTime>2019-03-20T21:32:43Z</gco:DateTime>
  </gmd:dateStamp>
  <gmd:metadataStandardName>
    <gco:CharacterString>ISO 19115 Geographic Information - Metadata</gco:CharacterString>
  </gmd:metadataStandardName>
  <gmd:metadataStandardVersion>
    <gco:CharacterString>ISO19115:2003/Cor 1 2006</gco:CharacterString>
  </gmd:metadataStandardVersion>
  <gmd:dataSetURI>
    <gco:CharacterString>https://gdex.ucar.edu/datasets/d607000</gco:CharacterString>
  </gmd:dataSetURI>
  <gmd:identificationInfo>
    <gmd:MD_DataIdentification>
      <gmd:citation>
        <gmd:CI_Citation>
          <gmd:title>
            <gco:CharacterString>NCEP 51-year Hydrological Reanalysis</gco:CharacterString>
          </gmd:title>
          <gmd:alternateTitle>
            <gco:CharacterString>d607000</gco:CharacterString>
          </gmd:alternateTitle>
          <gmd:date>
            <gmd:CI_Date>
              <gmd:date>
                <gco:Date>2006-04-13</gco:Date>
              </gmd:date>
              <gmd:dateType>
                <gmd:CI_DateTypeCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode" codeListValue="publication">publication</gmd:CI_DateTypeCode>
              </gmd:dateType>
            </gmd:CI_Date>
          </gmd:date>
          <gmd:citedResponsibleParty>
            <gmd:CI_ResponsibleParty>
              <gmd:organisationName>
                <gco:CharacterString>National Centers for Environmental Prediction, National Weather Service, NOAA, U.S. Department of Commerce</gco:CharacterString>
              </gmd:organisationName>
              <gmd:role>
                <gmd:CI_RoleCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="author">author</gmd:CI_RoleCode>
              </gmd:role>
            </gmd:CI_ResponsibleParty>
          </gmd:citedResponsibleParty>
          <gmd:citedResponsibleParty>
            <gmd:CI_ResponsibleParty>
              <gmd:organisationName>
                <gco:CharacterString>NSF National Center for Atmospheric Research</gco:CharacterString>
              </gmd:organisationName>
              <gmd:role>
                <gmd:CI_RoleCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="publisher">publisher</gmd:CI_RoleCode>
              </gmd:role>
            </gmd:CI_ResponsibleParty>
          </gmd:citedResponsibleParty>
        </gmd:CI_Citation>
      </gmd:citation>
      <gmd:abstract>
        <gco:CharacterString> A 51-year hydrological reanalysis between 1948 and 1998 over the continental US was recently completed at Climate Prediction Center of NCEP, NOAA. The project used Noah land surface model (LSM) with forcing data regridded from NCEP/NCAR Reanalysis data and the new CPC daily and hourly precipitation data. The best available orography, soil and vegetation types, etc. are used as the boundary conditions of this study. The output fields include all components of energy, water mass balance, snow cover and depth, and 4 layers of soil temperature, moisture (both liquid and frozen) below the ground. Three types of data files are archived in this dataset. They include the restart files, the forcing fields to run the Noah Land Surface Model, and the output files from the 1948-1998 runs.

 The daily restarting files and the hourly forcing fields are stored on NCAR's High Performance Storage System (HPSS) only.

 You can find the Noah LSM used in this study here [ftp://ftp.emc.ncep.noaa.gov/mmb/gcp/ldas/noahlsm/ver_2.5.2].</gco:CharacterString>
      </gmd:abstract>
      <gmd:status>
        <gmd:MD_ProgressCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_ProgressCode" codeListValue="completed">completed</gmd:MD_ProgressCode>
      </gmd:status>
      <gmd:pointOfContact>
        <gmd:CI_ResponsibleParty>
          <gmd:contactInfo>
            <gmd:CI_Contact>
              <gmd:address>
                <gmd:CI_Address>
                  <gmd:electronicMailAddress>
                    <gco:CharacterString>datahelp@ucar.edu</gco:CharacterString>
                  </gmd:electronicMailAddress>
                </gmd:CI_Address>
              </gmd:address>
            </gmd:CI_Contact>
          </gmd:contactInfo>
          <gmd:role>
            <gmd:CI_RoleCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="pointOfContact">pointOfContact</gmd:CI_RoleCode>
          </gmd:role>
        </gmd:CI_ResponsibleParty>
      </gmd:pointOfContact>
      <gmd:resourceMaintenance>
        <gmd:MD_MaintenanceInformation>
          <gmd:maintenanceAndUpdateFrequency>
            <gmd:MD_MaintenanceFrequencyCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_MaintenanceFrequencyCode" codeListValue="notPlanned">notPlanned</gmd:MD_MaintenanceFrequencyCode>
          </gmd:maintenanceAndUpdateFrequency>
          <gmd:updateScope>
            <gmd:MD_ScopeCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_ScopeCode" codeListValue="dataset">dataset</gmd:MD_ScopeCode>
          </gmd:updateScope>
        </gmd:MD_MaintenanceInformation>
      </gmd:resourceMaintenance>
      <gmd:resourceFormat>
        <gmd:MD_Format>
          <gmd:name>
            <gco:CharacterString>WMO GRIB1</gco:CharacterString>
          </gmd:name>
          <gmd:version gco:nilReason="inapplicable"/>
        </gmd:MD_Format>
      </gmd:resourceFormat>
      <gmd:descriptiveKeywords>
        <gmd:MD_Keywords>
          <gmd:keyword>
            <gco:CharacterString>dataset</gco:CharacterString>
          </gmd:keyword>
          <gmd:thesaurusName>
            <gmd:CI_Citation>
              <gmd:title>
                <gco:CharacterString>Resource Type</gco:CharacterString>
              </gmd:title>
              <gmd:date>
                <gmd:CI_Date>
                  <gmd:date>
                    <gco:Date>2021-03-30</gco:Date>
                  </gmd:date>
                  <gmd:dateType>
                    <gmd:CI_DateTypeCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode" codeListValue="revision">revision</gmd:CI_DateTypeCode>
                  </gmd:dateType>
                </gmd:CI_Date>
              </gmd:date>
              <gmd:edition>
                <gco:CharacterString>4.4</gco:CharacterString>
              </gmd:edition>
              <gmd:citedResponsibleParty>
                <gmd:CI_ResponsibleParty>
                  <gmd:organisationName>
                    <gco:CharacterString>DataCite Metadata Working Group</gco:CharacterString>
                  </gmd:organisationName>
                  <gmd:role>
                    <gmd:CI_RoleCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="originator">orginator</gmd:CI_RoleCode>
                  </gmd:role>
                </gmd:CI_ResponsibleParty>
              </gmd:citedResponsibleParty>
              <gmd:otherCitationDetails>
                <gco:CharacterString>resourceTypeGeneral</gco:CharacterString>
              </gmd:otherCitationDetails>
            </gmd:CI_Citation>
          </gmd:thesaurusName>
        </gmd:MD_Keywords>
      </gmd:descriptiveKeywords>
      <gmd:descriptiveKeywords>
        <gmd:MD_Keywords>
          <gmd:keyword>
            <gco:CharacterString>MODELS &gt; MODELS</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>Noah-LSM &gt; Noah Land Surface Model</gco:CharacterString>
          </gmd:keyword>
          <gmd:thesaurusName>
            <gmd:CI_Citation>
              <gmd:title>
                <gco:CharacterString>U.S. National Aeronautics and Space Administration Global Change Master Directory</gco:CharacterString>
              </gmd:title>
              <gmd:alternateTitle>
                <gco:CharacterString>GCMD</gco:CharacterString>
              </gmd:alternateTitle>
              <gmd:date>
                <gmd:CI_Date>
                  <gmd:date>
                    <gco:Date>2026-02-27</gco:Date>
                  </gmd:date>
                  <gmd:dateType>
                    <gmd:CI_DateTypeCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode" codeListValue="revision">revision</gmd:CI_DateTypeCode>
                  </gmd:dateType>
                </gmd:CI_Date>
              </gmd:date>
              <gmd:edition>
                <gco:CharacterString>23.4</gco:CharacterString>
              </gmd:edition>
              <gmd:citedResponsibleParty>
                <gmd:CI_ResponsibleParty>
                  <gmd:organisationName>
                    <gco:CharacterString>NASA Global Change Master Directory</gco:CharacterString>
                  </gmd:organisationName>
                  <gmd:role>
                    <gmd:CI_RoleCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="originator">orginator</gmd:CI_RoleCode>
                  </gmd:role>
                </gmd:CI_ResponsibleParty>
              </gmd:citedResponsibleParty>
              <gmd:otherCitationDetails>
                <gco:CharacterString>Valids List: Platforms</gco:CharacterString>
              </gmd:otherCitationDetails>
            </gmd:CI_Citation>
          </gmd:thesaurusName>
        </gmd:MD_Keywords>
      </gmd:descriptiveKeywords>
      <gmd:descriptiveKeywords>
        <gmd:MD_Keywords>
          <gmd:keyword>
            <gco:CharacterString>EARTH SCIENCE &gt; ATMOSPHERE &gt; ATMOSPHERIC RADIATION &gt; OUTGOING LONGWAVE RADIATION</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>EARTH SCIENCE &gt; LAND SURFACE &gt; SOILS &gt; SOIL TEMPERATURE</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>EARTH SCIENCE &gt; ATMOSPHERE &gt; ATMOSPHERIC WINDS &gt; SURFACE WINDS</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>EARTH SCIENCE &gt; ATMOSPHERE &gt; ATMOSPHERIC WATER VAPOR &gt; WATER VAPOR INDICATORS &gt; HUMIDITY</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>EARTH SCIENCE &gt; ATMOSPHERE &gt; ATMOSPHERIC RADIATION &gt; HEAT FLUX</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>EARTH SCIENCE &gt; TERRESTRIAL HYDROSPHERE &gt; SNOW/ICE &gt; SNOW WATER EQUIVALENT</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>EARTH SCIENCE &gt; ATMOSPHERE &gt; ATMOSPHERIC RADIATION &gt; INCOMING SOLAR RADIATION</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>EARTH SCIENCE &gt; TERRESTRIAL HYDROSPHERE &gt; SNOW/ICE &gt; SNOW DEPTH</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>EARTH SCIENCE &gt; ATMOSPHERE &gt; ATMOSPHERIC PRESSURE &gt; SURFACE PRESSURE</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>EARTH SCIENCE &gt; ATMOSPHERE &gt; ATMOSPHERIC WATER VAPOR &gt; WATER VAPOR PROCESSES &gt; EVAPORATION</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>EARTH SCIENCE &gt; LAND SURFACE &gt; SOILS &gt; SOIL MOISTURE/WATER CONTENT</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>EARTH SCIENCE &gt; ATMOSPHERE &gt; PRECIPITATION &gt; PRECIPITATION AMOUNT</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>EARTH SCIENCE &gt; TERRESTRIAL HYDROSPHERE &gt; SNOW/ICE &gt; SNOW MELT</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>EARTH SCIENCE &gt; ATMOSPHERE &gt; ATMOSPHERIC TEMPERATURE &gt; SURFACE TEMPERATURE &gt; AIR TEMPERATURE</gco:CharacterString>
          </gmd:keyword>
          <gmd:thesaurusName>
            <gmd:CI_Citation>
              <gmd:title>
                <gco:CharacterString>U.S. National Aeronautics and Space Administration Global Change Master Directory</gco:CharacterString>
              </gmd:title>
              <gmd:alternateTitle>
                <gco:CharacterString>GCMD</gco:CharacterString>
              </gmd:alternateTitle>
              <gmd:date>
                <gmd:CI_Date>
                  <gmd:date>
                    <gco:Date>2026-02-27</gco:Date>
                  </gmd:date>
                  <gmd:dateType>
                    <gmd:CI_DateTypeCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode" codeListValue="revision">revision</gmd:CI_DateTypeCode>
                  </gmd:dateType>
                </gmd:CI_Date>
              </gmd:date>
              <gmd:edition>
                <gco:CharacterString>23.4</gco:CharacterString>
              </gmd:edition>
              <gmd:citedResponsibleParty>
                <gmd:CI_ResponsibleParty>
                  <gmd:organisationName>
                    <gco:CharacterString>NASA Global Change Master Directory</gco:CharacterString>
                  </gmd:organisationName>
                  <gmd:role>
                    <gmd:CI_RoleCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="originator">orginator</gmd:CI_RoleCode>
                  </gmd:role>
                </gmd:CI_ResponsibleParty>
              </gmd:citedResponsibleParty>
              <gmd:otherCitationDetails>
                <gco:CharacterString>Valids List: Science and Services Keywords</gco:CharacterString>
              </gmd:otherCitationDetails>
            </gmd:CI_Citation>
          </gmd:thesaurusName>
        </gmd:MD_Keywords>
      </gmd:descriptiveKeywords>
      <gmd:resourceConstraints>
        <gmd:MD_LegalConstraints>
          <gmd:useLimitation>
            <gco:CharacterString>Creative Commons Attribution 4.0 International License</gco:CharacterString>
          </gmd:useLimitation>
          <gmd:otherConstraints>
            <gco:CharacterString>None</gco:CharacterString>
          </gmd:otherConstraints>
        </gmd:MD_LegalConstraints>
      </gmd:resourceConstraints>
      <gmd:language>
        <gco:CharacterString>eng</gco:CharacterString>
      </gmd:language>
      <gmd:characterSet>
        <gmd:MD_CharacterSetCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_CharacterSetCode" codeListValue="utf8">utf-8</gmd:MD_CharacterSetCode>
      </gmd:characterSet>
      <gmd:topicCategory>
        <gmd:MD_TopicCategoryCode>climatologyMeteorologyAtmosphere</gmd:MD_TopicCategoryCode>
      </gmd:topicCategory>
      <gmd:extent>
        <gmd:EX_Extent>
          <gmd:temporalElement>
            <gmd:EX_TemporalExtent>
              <gmd:extent>
                <gml:TimePeriod gml:id="d607000_time_period">
                  <gml:beginPosition>1948-01-01T1300+00</gml:beginPosition>
                  <gml:endPosition>1998-12-30T2300+00</gml:endPosition>
                </gml:TimePeriod>
              </gmd:extent>
            </gmd:EX_TemporalExtent>
          </gmd:temporalElement>
        </gmd:EX_Extent>
      </gmd:extent>
    </gmd:MD_DataIdentification>
  </gmd:identificationInfo>
  <gmd:distributionInfo>
    <gmd:MD_Distribution>
      <gmd:distributor>
        <gmd:MD_Distributor>
          <gmd:distributorContact>
            <gmd:CI_ResponsibleParty>
              <gmd:organisationName>
                <gco:CharacterString>NSF NCAR Geoscience Data Exchange</gco:CharacterString>
              </gmd:organisationName>
              <gmd:contactInfo>
                <gmd:CI_Contact>
                  <gmd:address>
                    <gmd:CI_Address>
                      <gmd:electronicMailAddress>
                        <gco:CharacterString>datahelp@ucar.edu</gco:CharacterString>
                      </gmd:electronicMailAddress>
                    </gmd:CI_Address>
                  </gmd:address>
                  <gmd:onlineResource>
                    <gmd:CI_OnlineResource>
                      <gmd:linkage>
                        <gmd:URL>https://gdex.ucar.edu</gmd:URL>
                      </gmd:linkage>
                    </gmd:CI_OnlineResource>
                  </gmd:onlineResource>
                </gmd:CI_Contact>
              </gmd:contactInfo>
              <gmd:role>
                <gmd:CI_RoleCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="distributor">distributor</gmd:CI_RoleCode>
              </gmd:role>
            </gmd:CI_ResponsibleParty>
          </gmd:distributorContact>
        </gmd:MD_Distributor>
      </gmd:distributor>
      <gmd:transferOptions>
        <gmd:MD_DigitalTransferOptions>
          <gmd:transferSize>
            <gco:Real>684569.608</gco:Real>
          </gmd:transferSize>
          <gmd:onLine>
            <gmd:CI_OnlineResource>
              <gmd:linkage>
                <gmd:URL>https://gdex.ucar.edu/datasets/d607000/</gmd:URL>
              </gmd:linkage>
              <gmd:protocol>
                <gco:CharacterString>https</gco:CharacterString>
              </gmd:protocol>
              <gmd:name>
                <gco:CharacterString>Dataset Description</gco:CharacterString>
              </gmd:name>
              <gmd:description>
                <gco:CharacterString>Related Link</gco:CharacterString>
              </gmd:description>
              <gmd:function>
                <gmd:CI_OnLineFunctionCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode" codeListValue="information">information</gmd:CI_OnLineFunctionCode>
              </gmd:function>
            </gmd:CI_OnlineResource>
          </gmd:onLine>
          <gmd:onLine>
            <gmd:CI_OnlineResource>
              <gmd:linkage>
                <gmd:URL>https://gdex.ucar.edu/datasets/d607000/dataaccess/</gmd:URL>
              </gmd:linkage>
              <gmd:protocol>
                <gco:CharacterString>https</gco:CharacterString>
              </gmd:protocol>
              <gmd:name>
                <gco:CharacterString>Data Access</gco:CharacterString>
              </gmd:name>
              <gmd:description>
                <gco:CharacterString>Related Link</gco:CharacterString>
              </gmd:description>
              <gmd:function>
                <gmd:CI_OnLineFunctionCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode" codeListValue="download">download</gmd:CI_OnLineFunctionCode>
              </gmd:function>
            </gmd:CI_OnlineResource>
          </gmd:onLine>
        </gmd:MD_DigitalTransferOptions>
      </gmd:transferOptions>
    </gmd:MD_Distribution>
  </gmd:distributionInfo>
  <gmd:metadataConstraints>
    <gmd:MD_Constraints>
      <gmd:useLimitation>
        <gco:CharacterString>none</gco:CharacterString>
      </gmd:useLimitation>
    </gmd:MD_Constraints>
  </gmd:metadataConstraints>
  <gmd:metadataMaintenance>
    <gmd:MD_MaintenanceInformation>
      <gmd:maintenanceAndUpdateFrequency>
        <gmd:MD_MaintenanceFrequencyCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_MaintenanceFrequencyCode" codeListValue="asNeeded">asNeeded</gmd:MD_MaintenanceFrequencyCode>
      </gmd:maintenanceAndUpdateFrequency>
    </gmd:MD_MaintenanceInformation>
  </gmd:metadataMaintenance>
</gmd:MD_Metadata>
