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Spatially heterogeneous wastage of Himalayan glaciers.

ABSTRACT: We describe volumetric changes in three benchmark glaciers in the Nepal Himalayas on which observations have been made since the 1970s. Compared with the global mean of glacier mass balance, the Himalayan glaciers showed rapid wastage in the 1970s-1990s, but similar wastage in the last decade. In the last decade, a glacier in an arid climate showed negative but suppressed mass balance compared with the period 1970s-1990s, whereas two glaciers in a humid climate showed accelerated wastage. A mass balance model with downscaled gridded datasets depicts the fate of the observed glaciers. We also show a spatially heterogeneous distribution of glacier wastage in the Asian highlands, even under the present-day climate warming.

SUBMITTER: Fujita K

PROVIDER: S-EPMC3161597 | biostudies-literature | 2011 Aug

REPOSITORIES: biostudies-literature

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Spatially heterogeneous wastage of Himalayan glaciers.

Fujita Koji K Nuimura Takayuki T

Proceedings of the National Academy of Sciences of the United States of America 20110801 34

We describe volumetric changes in three benchmark glaciers in the Nepal Himalayas on which observations have been made since the 1970s. Compared with the global mean of glacier mass balance, the Himalayan glaciers showed rapid wastage in the 1970s-1990s, but similar wastage in the last decade. In the last decade, a glacier in an arid climate showed negative but suppressed mass balance compared with the period 1970s-1990s, whereas two glaciers in a humid climate showed accelerated wastage. A mass ...[more]

PMID: 21808042

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