Towards understanding the pattern of glacier mass balances in High Mountain Asia using regional climatic modelling
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Published:2020-09-24
Issue:9
Volume:14
Page:3215-3234
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ISSN:1994-0424
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Container-title:The Cryosphere
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language:en
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Short-container-title:The Cryosphere
Author:
de Kok Remco J.ORCID, Kraaijenbrink Philip D. A.ORCID, Tuinenburg Obbe A.ORCID, Bonekamp Pleun N. J., Immerzeel Walter W.ORCID
Abstract
Abstract. Glaciers in High Mountain Asia (HMA) provide an important water
resource for communities downstream, and they are markedly impacted by global
warming, yet there is a lack of understanding of the observed glacier mass
balances and their spatial variability. In particular, the glaciers in the
western Kunlun Shan and Karakoram (WKSK) ranges show neutral to positive
mass balances despite global warming. Using models of the regional climate
and glacier mass balance, we reproduce the observed patterns of glacier mass
balance in High Mountain Asia of the last decades within uncertainties. We
show that low temperature sensitivities of glaciers and an increase in
snowfall, for a large part caused by increases in evapotranspiration from
irrigated agriculture, result in positive mass balances in the WKSK. The pattern
of mass balances in High Mountain Asia can thus be understood from the
combination of changes in climatic forcing and glacier properties, with an
important role for irrigated agriculture.
Funder
H2020 European Research Council Chinese Academy of Sciences
Publisher
Copernicus GmbH
Subject
Earth-Surface Processes,Water Science and Technology
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