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| Titel |
Region-wide glacier mass balances over the Pamir-Karakoram-Himalaya during 1999-2011 |
| VerfasserIn |
J. Gardelle, E. Berthier, Y. Arnaud, A. Kääb |
| 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 ; 7, no. 4 ; Nr. 7, no. 4 (2013-08-09), S.1263-1286 |
| Datensatznummer |
250085146
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| Publikation (Nr.) |
 copernicus.org/tc-7-1263-2013.pdf |
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| Zusammenfassung |
| The recent evolution of Pamir-Karakoram-Himalaya (PKH) glaciers, widely
acknowledged as valuable high-altitude as well as mid-latitude climatic
indicators, remains poorly known. To estimate the region-wide glacier mass
balance for 9 study sites spread from the Pamir to the Hengduan Shan (eastern
Himalaya), we compared the 2000 Shuttle Radar Topography Mission (SRTM)
digital elevation model (DEM) to recent (2008–2011) DEMs derived from SPOT5
stereo imagery. During the last decade, the region-wide glacier mass balances
were contrasted with moderate mass losses in the eastern and central Himalaya
(−0.22 ± 0.12 m w.e. yr−1 to
−0.33 ± 0.14 m w.e. yr−1) and larger losses in the western
Himalaya (−0.45 ± 0.13 m w.e. yr−1). Recently reported slight
mass gain or balanced mass budget of glaciers in the central Karakoram is
confirmed for a larger area (+0.10 ± 0.16 m w.e. yr−1) and
also observed for glaciers in the western Pamir
(+0.14 ± 0.13 m w.e. yr−1). Thus, the "Karakoram anomaly"
should be renamed the "Pamir-Karakoram anomaly", at least for the last
decade. The overall mass balance of PKH glaciers,
−0.14 ± 0.08 m w.e. yr−1, is two to three times less negative
than the global average for glaciers distinct from the Greenland and
Antarctic ice sheets. Together with recent studies using ICESat and GRACE
data, DEM differencing confirms a contrasted pattern of glacier mass change
in the PKH during the first decade of the 21st century. |
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