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Titel |
Brief Communication: Contending estimates of 2003-2008 glacier mass balance over the Pamir–Karakoram–Himalaya |
VerfasserIn |
A. Kääb, D. Treichler, C. Nuth, E. Berthier |
Medientyp |
Artikel
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Sprache |
Englisch
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ISSN |
1994-0416
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Digitales Dokument |
URL |
Erschienen |
In: The Cryosphere ; 9, no. 2 ; Nr. 9, no. 2 (2015-03-19), S.557-564 |
Datensatznummer |
250116769
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Publikation (Nr.) |
copernicus.org/tc-9-557-2015.pdf |
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Zusammenfassung |
We present glacier thickness changes over the entire
Pamir–Karakoram–Himalaya arc based on ICESat satellite altimetry data for
2003–2008. We highlight the importance of C-band penetration for studies
based on the SRTM elevation model. This penetration seems to be of
potentially larger magnitude and variability than previously assumed. The
most negative rate of region-wide glacier elevation change (<−1 m yr−1)
is observed for the eastern Nyainqêntanglha Shan. Conversely,
glaciers of the western Kunlun Shan are slightly gaining volume, and Pamir and
Karakoram seem to be on the western edge of this mass-gain anomaly rather
than its centre. For the Ganges, Indus and Brahmaputra basins, the glacier
mass change reaches −24 ± 2 Gt yr−1, about 10% of the current
glacier contribution to sea-level rise. For selected catchments, we estimate
glacier imbalance contributions to river run-off from a few percent to
greater than 10%. |
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