<?xml version="1.0" encoding="UTF-8" ?><?xml-stylesheet type="text/xsl" href="xsl/oaitohtml.xsl"?><OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"><responseDate>2026-04-03T18:41:36Z</responseDate><request identifier="oai:doidb.wdc-terra.org:6687" metadataPrefix="oai_datacite" verb="GetRecord">http://doidb.wdc-terra.org/oaip/oai</request><GetRecord><record><header><identifier>oai:doidb.wdc-terra.org:6687</identifier><datestamp>2025-12-15T11:26:11Z</datestamp><setSpec>DOIDB</setSpec><setSpec>DOIDB.GFZ</setSpec></header><metadata><oai_datacite xmlns="http://schema.datacite.org/oai/oai-1.0/" xsi:schemaLocation="http://schema.datacite.org/oai/oai-1.0/ http://schema.datacite.org/oai/oai-1.0/oai.xsd"><isReferenceQuality>false</isReferenceQuality><schemaVersion>4</schemaVersion><datacentreSymbol>DOIDB.GFZ</datacentreSymbol><payload><resource xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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   <identifier identifierType="DOI">10.5880/GFZ.GRACEFO_06_GAC</identifier>
   <creators>
      <creator>
         <creatorName nameType="Personal">Dobslaw, Henryk</creatorName>
         <givenName>Henryk</givenName>
         <familyName>Dobslaw</familyName>
         <nameIdentifier nameIdentifierScheme="ORCID">0000-0003-1776-3314</nameIdentifier>
         <affiliation affiliationIdentifier="0000-0003-1776-3314" affiliationIdentifierScheme="ORCID">GFZ German Research Centre for Geosciences, Potsdam, Germany</affiliation>
      </creator>
      <creator>
         <creatorName nameType="Personal">Dill, Robert</creatorName>
         <givenName>Robert</givenName>
         <familyName>Dill</familyName>
         <nameIdentifier nameIdentifierScheme="ORCID">0000-0002-9596-267X</nameIdentifier>
         <affiliation affiliationIdentifier="0000-0002-9596-267X" affiliationIdentifierScheme="ORCID">GFZ German Research Centre for Geosciences, Potsdam, Germany</affiliation>
      </creator>
      <creator>
         <creatorName nameType="Personal">Dahle, Christoph</creatorName>
         <givenName>Christoph</givenName>
         <familyName>Dahle</familyName>
         <nameIdentifier nameIdentifierScheme="ORCID">0000-0002-4733-9242</nameIdentifier>
         <affiliation affiliationIdentifier="0000-0002-4733-9242" affiliationIdentifierScheme="ORCID">GFZ German Research Centre for Geosciences, Potsdam, Germany</affiliation>
      </creator>
   </creators>
   <titles>
      <title>GRACE-FO Geopotential GAC Coefficients GFZ RL06</title>
   </titles>
   <publisher>GFZ Data Services</publisher>
   <publicationYear>2019</publicationYear>
   <subjects>
      <subject>Gravity Recovery And Climate Experiment Follow-On (GRACE-FO)</subject>
      <subject>Gravity Recovery And Climate Experiment (GRACE)</subject>
      <subject>Level-2</subject>
      <subject>SHM</subject>
      <subject>Spherical Harmonic Model</subject>
      <subject>Gravitational Field</subject>
      <subject>GSM</subject>
      <subject>Geopotential</subject>
      <subject>Gravity Field</subject>
      <subject>Mass</subject>
      <subject>Mass Transport</subject>
      <subject>Total Water Storage</subject>
      <subject>Time Variable Gravity</subject>
      <subject>Mass Balance</subject>
      <subject>Gravity Anomaly</subject>
      <subject>Satellite Geodesy</subject>
      <subject>Ocean</subject>
      <subject>Ocean Bottom Pressure</subject>
      <subject>AOD</subject>
      <subject>Atmosphere</subject>
      <subject>Non-tidal Atmosphere</subject>
      <subject>Dealiasing Product</subject>
      <subject subjectScheme="NASA/GCMD Earth Science Keywords">EARTH SCIENCE &gt; SOLID EARTH &gt; GRAVITY/GRAVITATIONAL FIELD</subject>
   </subjects>
   <contributors>
      <contributor contributorType="HostingInstitution">
         <contributorName>GRACE-FO Science Data System</contributorName>
         <affiliation affiliationIdentifier="" affiliationIdentifierScheme="">GFZ German Research Centre for Geosciences, Potsdam, Germany</affiliation>
      </contributor>
      <contributor contributorType="ContactPerson">
         <contributorName>Dahle, Christoph</contributorName>
         <affiliation affiliationIdentifier="" affiliationIdentifierScheme="">GFZ German Research Centre for Geosciences, Potsdam, Germany</affiliation>
      </contributor>
   </contributors>
   <dates>
      <date dateType="Created">2019-06-12</date>
      <date dateType="Collected">2018-06</date>
   </dates>
   <resourceType resourceTypeGeneral="Dataset">Dataset</resourceType>
   <relatedIdentifiers>
      <relatedIdentifier relatedIdentifierType="URL" relationType="IsDocumentedBy">https://isdc-data.gfz.de/grace-fo/DOCUMENTS/RELEASE_NOTES/GRACE-FO_GFZ_L2_Release_Notes_for_RL06.3.pdf</relatedIdentifier>
      <relatedIdentifier relatedIdentifierType="DOI" relationType="IsDocumentedBy">10.2312/GFZ.b103-19098</relatedIdentifier>
      <relatedIdentifier relatedIdentifierType="URL" relationType="IsDocumentedBy">https://isdc-data.gfz.de/grace-fo/DOCUMENTS/Level-1/GRACE_AOD1B_Product_Description_Document_for_RL06.pdf</relatedIdentifier>
      <relatedIdentifier relatedIdentifierType="DOI" relationType="Cites">10.1093/gji/ggx302</relatedIdentifier>
      <relatedIdentifier relatedIdentifierType="DOI" relationType="HasPart">10.5880/GFZ.GRACEFO_06_GSM</relatedIdentifier>
      <relatedIdentifier relatedIdentifierType="DOI" relationType="Continues">10.5880/GFZ.GRACE_06_GAC</relatedIdentifier>
   </relatedIdentifiers>
   <sizes/>
   <formats/>
   <version>6.3</version>
   <rightsList>
      <rights rightsURI="http://creativecommons.org/licenses/by/4.0/">CC BY 4.0</rights>
   </rightsList>
   <descriptions>
      <description descriptionType="Abstract">Spherical harmonic coefficients that represent the sum of the ATM (or GAA) and OCN (or GAB) coefficients during the specified timespan. These coefficients represent anomalous contributions of the non-tidal dynamic ocean to ocean bottom pressure, the non-tidal atmospheric surface pressure over the continents, the static contribution of atmospheric pressure to ocean bottom pressure, and the upper-air density anomalies above both the continents and the oceans. The anomalous signals are relative to the mean field from 2003-2014.   <br/>
         <br/>
 ---------------------------------------------------------------------------------------------   <br/>
         <br/>
 Version History:   <br/>
         <br/>
 19 September 2024:   <br/>
 Release of Version 6.3. This is an update of Version 6.1 of the same data set (see changelog for details). Note that Version 6.2 was skipped to ensure consistent version numbering within the GRACE-FO Science Data System.   <br/>
         <br/>
 27 April 2022:   <br/>
 Release of Version 6.1. This is an update of Version 6.0 of the same data set (see changelog for details).   <br/>
         <br/>
 12 June 2019:   <br/>
 Initial release of the data (Version 6.0).   <br/>
         <br/>
 All changes and updates are documented in the changelog available via the data download section (ftp://isdcftp.gfz-potsdam.de/grace-fo/Level-2/GFZ).   <br/>
         <br/>
      </description>
   </descriptions>
   <geoLocations>
      <geoLocation>
         <geoLocationBox>
            <westBoundLongitude>-180</westBoundLongitude>
            <eastBoundLongitude>180</eastBoundLongitude>
            <southBoundLatitude>-90</southBoundLatitude>
            <northBoundLatitude>90</northBoundLatitude>
         </geoLocationBox>
      </geoLocation>
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