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学科主题: 地理学::自然地理学
题名: Late-Holocene glacier advances and related climate conditions in the Hailuogou catchment, Gongga Shan, eastern Tibetan Plateau
作者: Xu, XK (Xu, Xiangke)1, 2; Muhammad, AQ (Muhammad, Ateeq Q.)1; Pan, B (Pan, Baolin)3
通讯作者: Xu, XK
关键词: MAXIMUM CLIMATE ; UINTA MOUNTAINS ; ASIAN MONSOON ; NEW-ZEALAND ; GLACIATION ; CHINA ; BALANCE ; VALLEY
刊名: HOLOCENE
发表日期: 2016
DOI: 10.1177/0959683616646181
卷: 26, 期:12, 页:1897-1903
收录类别: SCI
合作性质: 国际
文章类型: Article
英文摘要: We present simulations for the late-Holocene glacier advances in the Hailuogou catchment, Gongga Shan, in attempts to test the glacier sensitivity to climate changes and constrain the climate conditions that support these glacier advances. We use a coupled mass-balance and ice-flow model parameterized using empirical glaciological and climatological data to simulate the glacier extents by fitting modeled glaciers to corresponding glacial landforms. The glacier sensitivity test showed that in the Hailuogou catchment, glacier area expands increasingly quickly until 4 degrees C cooling, beyond which decreased expansion occurs up to at least 5 degrees C cooling, but the modeled glacier volume increases steadily up to 5 degrees C with an approximate linear rate being 1.1 x 10(9) m(3)/0.5 degrees C. The temperatures were estimated to be 1.9-3.1 degrees C, 1.5-2.6 degrees C, and 1.0-2.2 degrees C cooler than present for the respective Guanjingtai, Hailuogou, and 'Little Ice Age' ('LIA') Maximum glacial stages, considering a realistic precipitation field being 80-120% of present value. Model results also suggested that the Hailuogou catchment was covered by glaciers of 64.1, 59.3, and 53.8 km(2) and ice volumes of 8.79 x 10(9), 7.99 x 10(9), and 6.92 x 10(9) m(3) in the Guanjingtai, Hailuogou, and 'LIA' Maximum glacial stages, respectively. These findings help to understand the relationships between glacier dynamic and climate change and the hydrological evolution in the Hailuogou catchment. We therefore encourage using the model as a powerful tool to retrieve past ice extents and evaluate their related climate conditions on the vast Tibetan Plateau.
语种: 英语
WOS记录号: WOS:000386909700001
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.itpcas.ac.cn/handle/131C11/7490
Appears in Collections:图书馆_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, 16 Lincui Rd, Beijing 100101, Peoples R China
2.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, State Key Lab Cryospher Sci, Beijing, Peoples R China
3.Capital Normal Univ, Coll Resource Environm & Tourism, Beijing, Peoples R China

Recommended Citation:
Xu, XK ,Muhammad, AQ ,Pan, B . Late-Holocene glacier advances and related climate conditions in the Hailuogou catchment, Gongga Shan, eastern Tibetan Plateau[J]. HOLOCENE,2016,26(12):1897-1903.
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文件名: V.26(12) 1897-1903 2016.pdf
格式: Adobe PDF
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