气候变化领域集成服务门户(CCPortal): Climate regime of Asian glaciers revealed by GAMDAM glacier inventory

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DOI	10.5194/tc-9-865-2015
	Climate regime of Asian glaciers revealed by GAMDAM glacier inventory
	Sakai A.; Nuimura T.; Fujita K.; Takenaka S.; Nagai H.; Lamsal D.
发表日期	2015
ISSN	19940416
卷号	9 期号:3
英文摘要	Among meteorological elements, precipitation has a large spatial variability and less observation, particularly in high-mountain Asia, although precipitation in mountains is an important parameter for hydrological circulation. We estimated precipitation contributing to glacier mass at the median elevation of glaciers, which is presumed to be at equilibrium-line altitude (ELA) such that mass balance is zero at that elevation, by tuning adjustment parameters of precipitation. We also made comparisons between the median elevation of glaciers, including the effect of drifting snow and avalanche, and eliminated those local effects. Then, we could obtain the median elevation of glaciers depending only on climate to estimate glacier surface precipitation. The calculated precipitation contributing to glacier mass can elucidate that glaciers in arid high-mountain Asia receive less precipitation, while much precipitation makes a greater contribution to glacier mass in the Hindu Kush, the Himalayas, and the Hengduan Shan due to not only direct precipitation amount but also avalanche nourishment. We classified glaciers in high-mountain Asia into summer-accumulation type and winter-accumulation type using the summer-accumulation ratio and confirmed that summer-accumulation-type glaciers have a higher sensitivity than winter-accumulation-type glaciers. © 2015 Author(s).
学科领域	altitude; avalanche; climate change; drift (glacial deposit); glacier mass balance; precipitation (climatology); spatial variation; Asia
语种	英语
scopus关键词	altitude; avalanche; climate change; drift (glacial deposit); glacier mass balance; precipitation (climatology); spatial variation; Asia
来源期刊	Cryosphere
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/119906
作者单位	Graduate School of Environmental Studies, Nagoya University, Nagoya, Japan; Chiba Institute of Science, Chiba, Japan; Earth Observation Research Center, Japan Aerospace Exploration Agency, Tsukuba, Japan
推荐引用方式 GB/T 7714	Sakai A.,Nuimura T.,Fujita K.,et al. Climate regime of Asian glaciers revealed by GAMDAM glacier inventory[J],2015,9(3).
APA	Sakai A.,Nuimura T.,Fujita K.,Takenaka S.,Nagai H.,&Lamsal D..(2015).Climate regime of Asian glaciers revealed by GAMDAM glacier inventory.Cryosphere,9(3).
MLA	Sakai A.,et al."Climate regime of Asian glaciers revealed by GAMDAM glacier inventory".Cryosphere 9.3(2015).