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Climate of the Past An interactive open-access journal of the European Geosciences Union
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Discussion papers
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Submitted as: research article 21 Nov 2019

Submitted as: research article | 21 Nov 2019

Review status
This discussion paper is a preprint. It is a manuscript under review for the journal Climate of the Past (CP).

Lagged variation of moisture conditions in central Asia compared with monsoonal Asia during the last four interglacials

Jia Jia1, Jianhui Chen2, Xin Wang2, Hao Lu2, Zhiyuan Wang1, Zaijun Li2, Qiang Wang2, Yanwu Duan2, Ilhomjon Oimahmadov3, Mustafo Gadoev3, and Fahu Chen4,2 Jia Jia et al.
  • 1College of Geography and Environmental Science, Zhejiang Normal University, Zhejiang 321004, China
  • 2MOE Key Laboratory of West China's Environmental System, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
  • 3Institute of Geology, Tajik Academy of Science
  • 4Chinese Academy of Sciences Center for Excellence in Tibetan Plateau Earth Sciences, Beijing 100101, China

Abstract. Previous research has indicated that variations in moisture conditions in arid central Asia (ACA) were out-of-phase with those of monsoonal Asia during the Holocene. In order to investigate this phenomenon, we compared the pattern of moisture variations in ACA and the region dominated by the East Asia summer monsoon (EASM) during the last four interglacials. The results indicate that moisture variations in ACA lagged those in the EASM region by ~ 6 kyr during MIS 5, by −3 kyr during MIS 7, by 3 kyr during MIS 9, and by 7 kyr during MIS 11. We suggest that this lagged pattern in three out of four interglacials was the result of a zonal climatic teleconnection, westerly wind intensity, and evaporation upstream. Overall, our results shed new light on the climatic variability of central Asia and its origins during the Holocene.

Jia Jia et al.
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Publications Copernicus
Short summary
Central Asia is characterized by scarce water resources, sparse vegetation cover and fragile ecosystems, making it very sensitive to climate change. Under the present global warming scenario, central Asia faces severe water resources problems. This study gives us an opportunity to insight understand the linkage between westerlies and Asia Monsoon circulation, which is helpful to assess the water resources and ecological systems changes responding to global warming.
Central Asia is characterized by scarce water resources, sparse vegetation cover and fragile...