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Mass Balance Variation and Associative Climate Drivers for the Dongkemadi Glacier in the Central Tibetan Plateau
Liang, LQ (Liang, Liqiao)1,2; Cuo, L (Cuo, Lan)1,2,3; Liu, Q (Liu, Qiang)4,5
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
2019
Volume124Issue:20Pages:10814-10825
DOI10.1029/2019JD030615
Abstract

Glacier mass balance is a critical parameter in assessing glacial changes and meltwater runoff associated with climate change. This study used a modified distributed surface energy balance model at 3 hr temporal and 100- x 100-m spatial resolutions to reconstruct a 1960-2009 mass balance time series of the alpine Dongkemadi Glacier in the central region of the Tibetan Plateau. The modified distributed surface energy balance model was able to reasonably simulate glacier mass balance estimations. The average annual mass balance of the reconstructed long-term time series was -0.125 m w.e. (meter water equivalent), and the cumulative mass balance was -6.245 m w.e. throughout 1960-2009. Simulation results revealed that the glacier mass balance was more readily influenced by changes in air temperature (-362 mm w.e. [millimeter water equivalent]) than changes in precipitation (+138 mm w.e.). Therefore, a decreasing trend in the annual mass balance mainly derived from increasing air temperature throughout the simulated study period, although increasing precipitation inhibited the glacier ablation trend to some extent. Throughout 1960-2009, the glacial ablation zone expanded as shown by an increase in the equilibrium line altitude. This study offers comprehensive information on an important glacier monitored under harsh environmental conditions while aiding in our understanding of glacial response to climate change, using a method that can be applied to other glaciers to which mass balance observations are limited.

Subject AreaAtmospheric Sciences
WOS IDWOS:000493215900001
Language英语
Indexed BySCI
KeywordRunoff Surface Region China Lakes Impacts Maximum Energy Shan
WOS Research AreaMeteorology & Atmospheric Sciences
WOS SubjectMeteorology & Atmospheric Sciences
Cooperation Status国内
ISSN2169-897X
Department环境变化与地表过程重点实验室
URL查看原文
PublisherAMER GEOPHYSICAL UNION
Citation statistics
Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/9114
Collection图书馆
Corresponding AuthorLiang, LQ (Liang, Liqiao); Liu, Q (Liu, Qiang)
Affiliation1.Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China;
2.Chinese Acad Sci, Key Lab Tibetan Environm Changes & Land Surface P, Inst Tibetan Plateau Res, Beijing, Peoples R China;
3.Univ Chinese Acad Sci, Beijing, Peoples R China;
4.Beijing Normal Univ, Sch Environm, State Key Lab Water Environm Simulat, Beijing, Peoples R China;
5.Beijing Normal Univ, Sch Environm, Key Lab Water & Sediment Sci, Minist Educ, Beijing, Peoples R China.
Recommended Citation
GB/T 7714
Liang, LQ ,Cuo, L ,Liu, Q . Mass Balance Variation and Associative Climate Drivers for the Dongkemadi Glacier in the Central Tibetan Plateau[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2019,124(20):10814-10825.
APA Liang, LQ ,Cuo, L ,&Liu, Q .(2019).Mass Balance Variation and Associative Climate Drivers for the Dongkemadi Glacier in the Central Tibetan Plateau.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,124(20),10814-10825.
MLA Liang, LQ ,et al."Mass Balance Variation and Associative Climate Drivers for the Dongkemadi Glacier in the Central Tibetan Plateau".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 124.20(2019):10814-10825.
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