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	Tracking climate change in Central Asia through temperature and precipitation extremes
	Zhang Man; Chen Yaning; Shen Yanjun; Li Baofu
来源期刊	Journal of Geographical Sciences
ISSN	1009-637X
出版年	2019
卷号	29 期号:1 页码:3-28
英文摘要	Under the impacts of climate change and human activities, great uncertainties still exist in the response of climate extremes, especially in Central Asia (CA). In this study, we investigated spatial-temporal variation trends and abrupt changes in 17 indices of climate extremes, based on daily climate observations from 55 meteorological stations in CA during 1957-2005. We also speculated as to which atmospheric circulation factors had the greatest impacts on climate extremes. Our results indicated that the annual mean temperature (Tav), mean maximum and minimum temperature significantly increased at a rate of 0.32C/10a, 0.24C/10a and 0.41C/10a, respectively, which was far higher than the increasing rates either globally or across the Northern Hemisphere. Other temperature extremes showed widespread significant warming trends, especially for those indices derived from daily minimum temperature. All temperature extremes exhibited spatially widespread rising trends. Compared to temperature changes, precipitation extremes showed higher spatial and temporal variabilities. The annual total precipitation significantly increased at a rate of 4.76 mm/10a, and all precipitation extremes showed rising trends except for annual maximum consecutive dry days (CDD), which significantly decreased at a rate of -3.17 days/10a. On the whole, precipitation extremes experienced slight wetter trends in the Tianshan Mountains, Kazakhskiy Melkosopochnik (Hill), the Kyzylkum Desert and most of Xinjiang. The results of Cumulative Deviation showed that Tav and Txav had a significant abrupt change around 1987, and all precipitation indices experienced abrupt changes in 1986. Spearman's correlation analysis pointed to Siberian High and Tibetan Plateau Index_B as possibly being the most important atmospheric circulation factors affecting climate extremes in CA. A full quantitative understanding of these changes is crucial for the management and mitigation of natural hazards in this region.
英文关键词	abrupt change atmospheric circulation climate change climate extremes spatial-temporal variability Central Asia
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	CSCD
WOS研究方向	Meteorology & Atmospheric Sciences
CSCD记录号	CSCD:6412348
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/336060
作者单位	Zhang Man, College of Resources and Environmental Science, Hebei Normal University;;Xinjiang Institute of Ecology and Geography, CAS, ;;State Key Laboratory of Desert and Oasis Ecology, Shijiazhuang;;Urumqi, ;; 050024;;830011.; Chen Yaning, Xinjiang Institute of Ecology and Geography, CAS, State Key Laboratory of Desert and Oasis Ecology, Urumqi, Xinjiang 830011, China.; Shen Yanjun, Center for Agricultural Resources Research, CAS, Key Laboratory of Agricultural Water Resources, CAS, Shijiazhuang, Hebei 050021, China.; Li Baofu, College of Geography and Tourism, Qufu Normal University, Rizhao, Shandong 276826, China.
推荐引用方式 GB/T 7714	Zhang Man,Chen Yaning,Shen Yanjun,et al. Tracking climate change in Central Asia through temperature and precipitation extremes[J],2019,29(1):3-28.
APA	Zhang Man,Chen Yaning,Shen Yanjun,&Li Baofu.(2019).Tracking climate change in Central Asia through temperature and precipitation extremes.Journal of Geographical Sciences,29(1),3-28.
MLA	Zhang Man,et al."Tracking climate change in Central Asia through temperature and precipitation extremes".Journal of Geographical Sciences 29.1(2019):3-28.