气候变化领域集成服务门户(CCPortal): Influence of Atmospheric Circulation on Glacier Mass Balance in Western Tibet: An Analysis Based on Observations and Modeling

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DOI	10.1175/JCLI-D-20-0988.1
	Influence of Atmospheric Circulation on Glacier Mass Balance in Western Tibet: An Analysis Based on Observations and Modeling
	Zhu, Meilin; Thompson, Lonnie G.; Zhao, Huabiao; Yao, Tandong; Yang, Wei; Jin, Shengqiang
通讯作者	Zhu, ML (通讯作者)
发表日期	2021
ISSN	0894-8755
EISSN	1520-0442
起始页码	6743
结束页码	6757
卷号	34 期号:16
英文摘要	Glacier changes on the Tibetan Plateau (TP) have been spatially heterogeneous in recent decades. The understanding of glacier mass changes in western Tibet, a transitional area between the monsoon-dominated region and the westerlies-dominated region, is still incomplete. For this study, we used an energy-mass balance model to reconstruct annual mass balances from October 1967 to September 2019 to explore the effects of local climate and large-scale atmospheric circulation on glacier mass changes in western Tibet. The results showed that Xiao Anglong Glacier is close to a balanced condition, with an average value of -53 +/- 185 mm water equivalent (w.e.) yr(-1) for 1968-2019. The interannual mass balance variability during 1968-2019 was primary driven by ablation-season precipitation, which determined changes in the snow accumulation and strongly influenced melt processes. The interannual mass balance variability during 1968-2019 was less affected by ablation-season air temperature, which only weakly affected snowfall and melt energy. Further analysis suggests that the southward (or northward) shift of the westerlies caused low (or high) ablation-season precipitation, and therefore low (or high) annual mass balance for glaciers in western Tibet. In addition, the average mass balance for Xiao Anglong Glacier was 83 +/- 185, -210 +/- 185, and -10 +/- 185 mm w.e. yr(-1) for 1968-90, 1991-2012, and 2013-19, respectively. These mass changes were associated with the variations in precipitation and air temperature during the ablation season on interdecadal time scales.
关键词	REGIONAL CLIMATE ENERGY-BALANCE PLATEAU RECONSTRUCTION KARAKORAM HIMALAYA ASIA TEMPERATURE VARIABILITY CATCHMENT
英文关键词	Glaciers; Atmospheric circulation; Precipitation; Climate variability; Energy budget; balance; Ice loss; growth
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000677665400015
来源期刊	JOURNAL OF CLIMATE
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/260145
推荐引用方式 GB/T 7714	Zhu, Meilin,Thompson, Lonnie G.,Zhao, Huabiao,et al. Influence of Atmospheric Circulation on Glacier Mass Balance in Western Tibet: An Analysis Based on Observations and Modeling[J]. 中国科学院青藏高原研究所,2021,34(16).
APA	Zhu, Meilin,Thompson, Lonnie G.,Zhao, Huabiao,Yao, Tandong,Yang, Wei,&Jin, Shengqiang.(2021).Influence of Atmospheric Circulation on Glacier Mass Balance in Western Tibet: An Analysis Based on Observations and Modeling.JOURNAL OF CLIMATE,34(16).
MLA	Zhu, Meilin,et al."Influence of Atmospheric Circulation on Glacier Mass Balance in Western Tibet: An Analysis Based on Observations and Modeling".JOURNAL OF CLIMATE 34.16(2021).