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        <identifier>doi:10.13127/epos_gnss_ppp_vel</identifier>
        <datestamp>2025-02-08T18:55:44Z</datestamp>
        <setSpec>WNGN</setSpec>
        <setSpec>CRUI.INGV</setSpec>
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  <identifier identifierType="DOI">10.13127/EPOS_GNSS_PPP_VEL</identifier>
  <creators>
    <creator>
      <creatorName nameType="Personal">D'Agostino, Nicola</creatorName>
      <givenName>Nicola</givenName>
      <familyName>D'Agostino</familyName>
      <nameIdentifier nameIdentifierScheme="ORCID" schemeURI="https://orcid.org">https://orcid.org/0000-0002-0444-6240</nameIdentifier>
      <affiliation affiliationIdentifier="https://ror.org/00qps9a02" affiliationIdentifierScheme="ROR" schemeURI="https://ror.org">Istituto Nazionale di Geofisica e Vulcanologia (INGV)</affiliation>
    </creator>
  </creators>
  <titles>
    <title xml:lang="en">INGV PPP GNSS velocities for EPOS</title>
    <title titleType="AlternativeTitle">EPOS_GNSS_PPP_VEL</title>
  </titles>
  <publisher publisherIdentifier="https://ror.org/00qxqkw78" publisherIdentifierScheme="ROR" schemeURI="https://ror.org/">European Plate Observing System (EPOS) ERIC</publisher>
  <publicationYear>2020</publicationYear>
  <resourceType resourceTypeGeneral="Dataset">GNSS velocities in ASCII format</resourceType>
  <subjects>
    <subject>GNSS STATION VELOCITY</subject>
  </subjects>
  <contributors>
    <contributor contributorType="RightsHolder">
      <contributorName nameType="Organizational">Istituto Nazionale di Geofisica e Vulcanologia (INGV)</contributorName>
      <nameIdentifier nameIdentifierScheme="ROR" schemeURI="">https://ror.org/00qps9a02</nameIdentifier>
    </contributor>
  </contributors>
  <dates>
    <date dateType="Coverage">2000-01-01/</date>
    <date dateType="Issued">2020</date>
  </dates>
  <language>en</language>
  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsDerivedFrom" resourceTypeGeneral="Dataset">10.13127/ring</relatedIdentifier>
  </relatedIdentifiers>
  <sizes/>
  <formats>
    <format>text/csv</format>
    <format>text/tab-separated-values</format>
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  <version/>
  <rightsList>
    <rights rightsURI="https://creativecommons.org/licenses/by/4.0/" rightsIdentifier="cc-by-4.0" rightsIdentifierScheme="SPDX" schemeURI="https://spdx.org/licenses/">Creative Commons Attribution 4.0 International</rights>
  </rightsList>
  <descriptions>
    <description xml:lang="en" descriptionType="Abstract">Statistical trend estimation of 3D velocities from INGV PPP EPOS daily solutions.
The velocities are well-suited for geodynamic, tectonic and seismological studies.</description>
    <description xml:lang="en" descriptionType="Methods">MIDAS velocity generation from INGV GIPSY PPP solutions

To estimate rates of motion for each station and associated uncertainties from the daily time series we
applied the robust MIDAS trend estimator (Blewitt et al., 2016). The MIDAS-estimated velocity is
essentially the median of the distribution of values calculated using pairs of data in the time series
separated by approximately 1 year, making it insensitive to seasonal variation and time series outliers.
MIDAS provides uncertainties based on the scaled median of absolute deviations of the residual
dispersion.

Blewitt et al. (2016): MIDAS robust trend estimator for accurate GPS station velocities without step detection, J. Geophys. Res. Solid Earth, 121, 2054–2068, doi:10.1002/2015JB012552.</description>
  </descriptions>
  <geoLocations>
    <geoLocation>
      <geoLocationPlace>Europe, Mediterranean, Africa, Asia</geoLocationPlace>
    </geoLocation>
    <geoLocation>
      <geoLocationPlace>EPOS STATIONS AREA</geoLocationPlace>
      <geoLocationBox>
        <westBoundLongitude>-60</westBoundLongitude>
        <eastBoundLongitude>80</eastBoundLongitude>
        <southBoundLatitude>-40</southBoundLatitude>
        <northBoundLatitude>78</northBoundLatitude>
      </geoLocationBox>
    </geoLocation>
  </geoLocations>
  <fundingReferences>
    <fundingReference>
      <funderName>European Commission (EC)</funderName>
      <funderIdentifier funderIdentifierType="Crossref Funder ID">https://doi.org/10.13039/501100000780</funderIdentifier>
      <awardNumber awardURI="https://cordis.europa.eu/project/rcn/198338/">676564</awardNumber>
      <awardTitle>EPOS IP - European Plate Observing System</awardTitle>
    </fundingReference>
  </fundingReferences>
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