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              <gmd:eastBoundLongitude>
                <gco:Decimal>-60.0</gco:Decimal>
              </gmd:eastBoundLongitude>
              <gmd:southBoundLatitude>
                <gco:Decimal>-77.0</gco:Decimal>
              </gmd:southBoundLatitude>
              <gmd:northBoundLatitude>
                <gco:Decimal>-69.0</gco:Decimal>
              </gmd:northBoundLatitude>
            </gmd:EX_GeographicBoundingBox>
          </gmd:geographicElement>
          <gmd:temporalElement>
            <gmd:EX_TemporalExtent>
              <gmd:extent>
                <gml:TimePeriod>
                  <gml:beginPosition>2010-01-01</gml:beginPosition>
                  <gml:endPosition>2020-12-31</gml:endPosition>
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    </gmd:MD_DataIdentification>
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        <gmd:MD_Distributor>
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            <gmd:CI_ResponsibleParty>
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                <gmx:Anchor xlink:href="https://ror.org/01rhff309" xlink:actuate="onRequest" xlink:title="ror">NERC EDS UK Polar Data Centre</gmx:Anchor>
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                  </gmd:phone>
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                        <gmd:URL>https://www.bas.ac.uk/team/business-teams/information-services/uk-polar-data-centre/</gmd:URL>
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                  </gmd:protocol>
                  <gmd:name>
                    <gco:CharacterString>Get Data</gco:CharacterString>
                  </gmd:name>
                  <gmd:description>
                    <gco:CharacterString>Download data</gco:CharacterString>
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                    <gmd:CI_OnLineFunctionCode codeList="http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/codelist/gmxCodelists.xml#CI_OnLineFunctionCode" codeListValue="download">download</gmd:CI_OnLineFunctionCode>
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              <gmd:onLine>
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                    <gmd:URL>https://ramadda.data.bas.ac.uk/repository/entry/show?entryid=7cfa48ba-5d5f-4d22-8d14-1a6fa37b5346</gmd:URL>
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                  <gmd:protocol>
                    <gco:CharacterString>WWW:LINK-1.0-http--link</gco:CharacterString>
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                  <gmd:name>
                    <gco:CharacterString>Get Data</gco:CharacterString>
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                  <gmd:description>
                    <gco:CharacterString>Download data</gco:CharacterString>
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                    <gmd:CI_OnLineFunctionCode codeList="http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/codelist/gmxCodelists.xml#CI_OnLineFunctionCode" codeListValue="download">download</gmd:CI_OnLineFunctionCode>
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The GPS data was processed using GAMIT/GLOBK software (Herring et al., 2016). The UK Antarctic network (UKANET) was combined with a globally distributed network that includes all available data from the International GNSS Service (IGS), US POLENET-ANET and UKANET networks.
Data collection: 
Details of the GPS stations instrumentation can be found in the following page in the IGS log format: https://data.unavco.org/archive/gnss/logs/. Identifiers of the GPS sites: https://doi.org/10.7283/T56Q1VN5.
Data quality: 
The quality check of the raw GPS data can be found in the following archive: https://data.unavco.org/archive/gnss/rinex/qc/. In addition, the file named tsview.renames.smb in this dataset includes the position outliers removed from the vertical positions time series. The file is structured ASCII text, in the format used by the GAMIT/GLOBK software.</gco:CharacterString>
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</gmd:MD_Metadata>

