Brief Communication: Contending estimates of 2003-2008 glacier mass balance over the Pamir-Karakoram-Himalaya

被引：344

作者：

Kaab, A. ^{[1
]}

Treichler, D. ^{[1
]}

Nuth, C. ^{[1
]}

Berthier, E. ^{[2
]}

机构：

[1] Univ Oslo, Dept Geosci, Oslo, Norway

[2] Univ Toulouse, CNRS, LEGOS, F-31400 Toulouse, France

来源：

CRYOSPHERE | 2015年 / 9卷 / 02期

基金：

欧洲研究理事会;

关键词：

PRECIPITATION SEASONALITY; TIBETAN PLATEAU; PENETRATION; RADAR; VARIABILITY;

D O I：

10.5194/tc-9-557-2015

中图分类号：

P9 [自然地理学];

学科分类号：

0705 ; 070501 ;

摘要：

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 Nyainqentanglha 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 %.

引用

页码：557 / 564

页数：8

共 33 条

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