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Speleothem-based rainfall records; a comparison of the arid region of Northwest China to the monsoon region of the Eastern China

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Authors:Hu Chaoyong; Wang Yingzhao; Li Aoyang; Liao Jin; Xie Shucheng
Author Affiliations:Primary:
China University of Geosciences, State Key Laboratory of Biogeology and Environmental Geology, Wuhan, China
Volume Title:Earth Science. Journal of China University of Geoscience
Source:Earth Science. Journal of China University of Geoscience, 40(2), p.268-274. Publisher: China University of Geoscience, Wuhan, China. ISSN: 1000-2383
Publication Date:2015
Note:In Chinese with English summary. 38 refs.; illus.
Summary:The monsoon region of the eastern part of China and the arid region of western part of China are the sensitive areas of global change, which are separately controlled by monsoon and westerly circulation. In the past 50 years, due to global warming, the precipitation of the arid region of Northwest China has significantly increased while the precipitation of the monsoon region of the eastern part of China shows no obvious variation. The future trend of two regional precipitations remains uncertain under the conditions of continuous global warming. Based on the speleothem growth rate records from Sanbao Cave, Shennongjia, Hubei, and Kesang Cave, Tekesi County, Xinjiang, we investigate the responses of those records to precipitation and the precipitation variations as well as distinctions of the two regions on glacial-interglacial scale, providing a case for precipitation forecasts from climatic models in future warming in China. It is found that the precipitation of the eastern part of China and the northwestern part of China fluctuate during glaciation-interglaciation, with an abundant precipitation in both two regions during interglacial period, corresponding to higher temperatures. Nevertheless, the precipitation of Northwest China lags behind that of the eastern part of China, implying the correlation between precipitation and temperature of the two regions are probably not completely simultaneous.
Subjects:Arid environment; Cenozoic; Glacial environment; Holocene; Hydrology; Interglacial environment; Monsoons; Paleoclimatology; Paleoenvironment; Quaternary; Rainfall; Solution features; Speleothems; Terrestrial environment; Asia; China; Far East; Hubei China; Xinjiang China; Eastern China; Kesang Cave; Northwestern China; Sanbao Cave; Shennongjia China; Tekes China
Coordinates:N313500 N313500 E1102950 E1102950
N431000 N431000 E0814300 E0814300
Record ID:788465-7
Copyright Information:GeoRef, Copyright 2021 American Geosciences Institute.
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