<?xml version="1.0" encoding="utf-8"?>
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  <doc>
    <id>30144</id>
    <completedYear/>
    <publishedYear>2022</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>S. 107</pageFirst>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>conferenceobject_noref</type>
    <publisherName>Alfred-Wegener-Institut für Polar- und Meeresforschung</publisherName>
    <publisherPlace>Bremerhaven</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2023-01-23</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Ice elevation change based on GNSS measurements along the Greenland Korth Expedition</title>
    <abstract language="deu">Since 2002, repetitive measurements have been taken on the southern Greenland ice sheet to study the change in ice elevation along a historical route defined by Alfred de Quervain. Until 2012, static GNSS measurements were carried out every 20 km under the responsibility of Wilfried Korth (Greenland Korth Expedition GKE). Since 2015, kinematic GNSS measurements have been recorded every second along the entire traverse from the East (near Tasiilaq) to the&#13;
West (near Ilulissat).&#13;
The kinematic repeat measurement took place in summer 2020, but it had to be ended prematurely and therefore the area of influence of Jakobshavn Isbræ could not be examined. Two comparison methods were used. On the one hand that of the crossing points and on the&#13;
other hand that of the minimum distances. Both methods give similar results for the Greenland ice sheet. Another expedition took place in spring 2021, which kinematically measured the entire traverse. Based on this data, an estimate for the missing area from 2020 can be made and thus the comparability to the previous campaigns at the same season can be established.&#13;
Likewise, the change in winter from the end of the thaw period to the beginning of it can be examined.&#13;
Along the traverse, the influence of the two outlet glaciers Helheim in the East and Jakobshavn Isbræ in the West on the change in elevation is significant. In the accumulation area, a maximum gain of 2.1 m is recorded, whereas in the ablation area, a loss of up to 38.7 m occurs in the period from 2002 to 2021.</abstract>
    <parentTitle language="eng">Polar- und Meeresforschung, Polar Regions, Climate Change and Society 28th International Polar Conference Potsdam, 01 – 05 May 2022 German Society for Polar Research</parentTitle>
    <identifier type="issn">1866-3192</identifier>
    <identifier type="doi">https://doi.org/10.57738/BzPM_0762_2022</identifier>
    <enrichment key="BTU">nicht an der BTU erstellt / not created at BTU</enrichment>
    <enrichment key="opus.source">publish</enrichment>
    <enrichment key="UBICOseries">Berichte zur Polar- und Meeresforschung ; 762</enrichment>
    <author>
      <firstName>Luisa</firstName>
      <lastName>Näke</lastName>
    </author>
    <submitter>
      <firstName>Thomas</firstName>
      <lastName>Hitziger</lastName>
    </submitter>
    <author>
      <firstName>Thomas</firstName>
      <lastName>Hitziger</lastName>
    </author>
    <author>
      <firstName>Johanna</firstName>
      <lastName>Heim</lastName>
    </author>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>GNSS</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Ice Sheet</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Alfred de Quervain</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>measurement</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Jakobshavn Isbræ</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Wilfried Korth</value>
    </subject>
    <collection role="institutes" number="6302">FG Baumechanik und Numerische Methoden</collection>
  </doc>
</export-example>
