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Cirques of the central Tibetan Plateau: Morphology and controlling factors
Zhang, Qian1,2,3; Dong, Wenhan1; Dou, Jiahui1; Dong, Guocheng3,4; Zech, Roland2
通讯作者Zhang, Qian(qian.zhang@sdnu.edu.cn)
2021-11-15
发表期刊PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN0031-0182
卷号582页码:11
摘要Cirque morphology represents the characteristics of palaeoglaciations and palaeoclimate. This study mapped and analysed 70 cirques in the central Tibetan Plateau (TP) with dominant continental climate. The results show that from northwest to southeast, cirque dimensions (i.e., length, width, and area) increase, while cirque floor altitudes decrease. A likely reason is the high precipitation rate caused by the Indian summer monsoon in the southeastern part. The diversity of cirque aspect values indicates weak or inconsistent prevailing winds during cirque development. Cirques enlarge with altitude, which might imply that cirques at high altitudes developed early and thus increased in size. Cirque aspect diversity increases with altitude from 5100 to 5600 m above sea level (asl), which indicates the capacity of high altitudes to support cirques at less favourable slopes. If altitude increases above 5600 m asl, the diversity of cirque aspect first increases and then decreases, which may be because of local topography. Mountain orientation and lithology had an effect on cirque aspect/size. Cirque numbers and sizes were compared between western, central, and eastern sectors of the Gangdise Mountains in the southern TP with those in the central TP. This comparison showed that a strengthening Indian summer monsoon can raise the value of `cirque density' (i.e., cirque number per unit area), promote glacier development into valley-type, and limit cirque enlargement.
关键词Cirque Palaeoclimate Palaeoglaciation Central Tibetan Plateau
DOI10.1016/j.palaeo.2021.110656
关键词[WOS]GLACIAL CIRQUES ; SPATIAL-DISTRIBUTION ; ICELAND IMPLICATIONS ; MOUNTAIN-GLACIATION ; CASCADE RANGE ; BUZZSAW ; CLIMATE ; MORPHOMETRY ; EROSION ; LINE
收录类别SCI ; SCI
语种英语
资助项目National Natural Science Foundation of China[41901003] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB40000000] ; Project for Outstanding Youth Innovation Team in the Universities of Shandong Province[2019KJH011] ; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences[SKLLQG2038]
WOS研究方向Physical Geography ; Geology ; Paleontology
项目资助者National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Project for Outstanding Youth Innovation Team in the Universities of Shandong Province ; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences
WOS类目Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS记录号WOS:000704175900007
出版者ELSEVIER
引用统计
被引频次:7[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/361006/17245
专题加速器质谱中心
通讯作者Zhang, Qian
作者单位1.Shandong Normal Univ, Coll Geog & Environm, Jinan 250358, Peoples R China
2.Friedrich Schiller Univ Jena, Inst Geog, D-07743 Jena, Germany
3.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China
4.Natl Ctr AMS Xian, Shaanxi Key Lab Accelerator Mass Spectrometry AMS, Xian 710061, Peoples R China
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GB/T 7714
Zhang, Qian,Dong, Wenhan,Dou, Jiahui,et al. Cirques of the central Tibetan Plateau: Morphology and controlling factors[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2021,582:11.
APA Zhang, Qian,Dong, Wenhan,Dou, Jiahui,Dong, Guocheng,&Zech, Roland.(2021).Cirques of the central Tibetan Plateau: Morphology and controlling factors.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,582,11.
MLA Zhang, Qian,et al."Cirques of the central Tibetan Plateau: Morphology and controlling factors".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 582(2021):11.
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