Simulated Impact of the Tibetan Glacier Expansion on the Eurasian Climate and Glacial Surface Mass Balance during the Last Glacial Maximum

doi:10.1175/JCLI-D-19-0763.1

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	Simulated Impact of the Tibetan Glacier Expansion on the Eurasian Climate and Glacial Surface Mass Balance during the Last Glacial Maximum
	Liu, Yonggang 1; Wu, Yubin 2; Lin, Zhongda 3; Zhang, Yang 4; Zhu, Jiang 5; Yi, Chaolu 6
通讯作者	Yi, Chaolu(clyi@itpcas.ac.cn)
	2020-08-01
发表期刊	JOURNAL OF CLIMATE
ISSN	0894-8755
卷号	33 期号:15 页码:6491-6509
摘要	Glaciers over the Tibetan Plateau and surrounding regions during the Last Glacial Maximum (LGM) were much more extensive than during the preindustrial period (PI). The climate impact of such glacial expansion is studied here using the Community Atmosphere Model, version 4 (CAM4). To cover the range of uncertainty in glacier area during the LGM, the following three values are tested: 0.35 x 10(6), 0.53 x 10(6), and 0.70 x 10(6) km(2). The added glacier is distributed approximately equally over the Pamir region and the Himalayas. If 0.70 x 10(6) km(2) is used, the annual mean surface temperature of the glaciated regions would be cooled by similar to 3.5 degrees C. The annual mean precipitation would be reduced by 0.2 mm day(-1) (10%) and 2.5 mm day(-1) (24%) over the Pamir region and Himalayas, respectively. The surface mass balance (SMB) of the glaciers changes by 0.55 m yr(-1) (280%) and 20.32 m yr(-1) (220%) over the two regions, respectively. The changes in SMB remain large (0.29 and 20.13 m yr(-1)), even if the area of the Tibetan glacier were 0.35x10(6) km(2). Therefore, based on the results of this particular model, the expansion of glaciers can either enhance or slow the glacial growth. Moreover, the expansion of glaciers over the Himalayas reduces summer precipitation in central and northern China by similar to 0.5 mm day(-1) and increases summer precipitation in southern Asia by similar to 0.6 mm day(-1). The expansion of glaciers over the Pamir region has a negligible influence on the precipitation in these monsoonal regions, which is likely due to its large distance from the main monsoonal regions.
DOI	10.1175/JCLI-D-19-0763.1
收录类别	SCI ; SCI
语种	英语
资助项目	National Natural Science Foundation of China[41888101] ; National Natural Science Foundation of China[41630527] ; National Natural Science Foundation of China[41230523] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA20070102]
WOS研究方向	Meteorology & Atmospheric Sciences
项目资助者	National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000615097400011
出版者	AMER METEOROLOGICAL SOC
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/15917
专题	加速器质谱中心
通讯作者	Yi, Chaolu
作者单位	1.Peking Univ, Dept Atmospher & Ocean Sci, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Beijing, Peoples R China 3.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Numer Modeling Atmospher Sci & Ge, Beijing, Peoples R China 4.Nanjing Univ, Sch Atmospher Sci, Nanjing, Peoples R China 5.Univ Michigan, Dept Earth & Environm Sci, Ann Arbor, MI 48109 USA 6.Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Inst Tibetan Plateau Res, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Liu, Yonggang,Wu, Yubin,Lin, Zhongda,et al. Simulated Impact of the Tibetan Glacier Expansion on the Eurasian Climate and Glacial Surface Mass Balance during the Last Glacial Maximum[J]. JOURNAL OF CLIMATE,2020,33(15):6491-6509.
APA	Liu, Yonggang,Wu, Yubin,Lin, Zhongda,Zhang, Yang,Zhu, Jiang,&Yi, Chaolu.(2020).Simulated Impact of the Tibetan Glacier Expansion on the Eurasian Climate and Glacial Surface Mass Balance during the Last Glacial Maximum.JOURNAL OF CLIMATE,33(15),6491-6509.
MLA	Liu, Yonggang,et al."Simulated Impact of the Tibetan Glacier Expansion on the Eurasian Climate and Glacial Surface Mass Balance during the Last Glacial Maximum".JOURNAL OF CLIMATE 33.15(2020):6491-6509.