May 23, 2017 Journal article Open Access

Donald D. Blankenship; Catherine Ritz; Jason L. Roberts; Jason L. Roberts; Massimo Frezzotti; Frédéric Parrenin; Marie G. P. Cavitte; Duncan A. Young

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  <identifier identifierType="URL">https://www.openaccessrepository.it/record/131705</identifier>
  <creators>
    <creator>
      <creatorName>Donald D. Blankenship</creatorName>
    </creator>
    <creator>
      <creatorName>Catherine Ritz</creatorName>
    </creator>
    <creator>
      <creatorName>Jason L. Roberts</creatorName>
    </creator>
    <creator>
      <creatorName>Jason L. Roberts</creatorName>
    </creator>
    <creator>
      <creatorName>Massimo Frezzotti</creatorName>
    </creator>
    <creator>
      <creatorName>Frédéric Parrenin</creatorName>
    </creator>
    <creator>
      <creatorName>Marie G. P. Cavitte</creatorName>
    </creator>
    <creator>
      <creatorName>Duncan A. Young</creatorName>
    </creator>
  </creators>
  <titles>
    <title>Stable accumulation patterns around Dome C, East Antarctica, over the last glacial cycle</title>
  </titles>
  <publisher>INFN Open Access Repository</publisher>
  <publicationYear>2017</publicationYear>
  <subjects>
    <subject>NEANIAS Atmospheric Research Community</subject>
  </subjects>
  <dates>
    <date dateType="Issued">2017-05-23</date>
  </dates>
  <resourceType resourceTypeGeneral="Text">Journal article</resourceType>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://www.openaccessrepository.it/record/131705</alternateIdentifier>
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  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsIdenticalTo">10.5194/tc-2017-71</relatedIdentifier>
    <relatedIdentifier relatedIdentifierType="URL" relationType="IsPartOf">https://www.openaccessrepository.it/communities/itmirror</relatedIdentifier>
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  <rightsList>
    <rights rightsURI="http://www.opendefinition.org/licenses/cc-by">Creative Commons Attribution</rights>
    <rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights>
  </rightsList>
  <descriptions>
    <description descriptionType="Abstract">Abstract. We reconstruct the pattern of surface accumulation in the region around Dome C, East Antarctica, through the last glacial cycle. We use a set of internal isochrones interpreted from various ice-penetrating radar surveys and a 1D pseudo-steady ice flow model to invert for both time-averaged accumulation rates and paleoaccumulation rates between isochrone pairs. We observe that the surface accumulation pattern is stable through the last 128 kyrs, both the large-scale (100s km) gradients which reflect current modeled and observed precipitation gradients in the region, as well as the small-scale (10s km) accumulation variations linked to snow redistribution at the surface due to changes in its slope and curvature in the prevailing wind direction. This suggests a stable position of the dome throughout the last glacial cycle.</description>
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