YIC-IR  > 海岸带信息集成与综合管理实验室
Spatiotemporal variability of temperature and precipitation in Gansu Province (Northwest China) during 1951-2015
Wen, Xiaohu1; Wu, Xiaoqing2; Gao, Meng2; Gao, Meng(Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Shandong, Peoples R China)
2017-11-15
发表期刊ATMOSPHERIC RESEARCH
ISSN0169-8095
卷号197页码:132-149
产权排序第2完成单位
摘要Climate change is potentially challenging the sustainable development in many parts of the world, especially the semi-arid and arid regions on the earth. Northwest China (NWC) is one of the most arid areas in East Asia, and Gansu Province is located at the important climate transition zone in NWC. Spatiotemporal variability of both temperature and precipitation were analyzed based on the daily observation dataset at 29 meteorological stations over Gansu during 1951-2015. The Mann - Kendall trend test was utilized to detect monotonic trends in extreme climate indices, mean temperature, and total precipitation. The results revealed that the warming trends were statistically significant at most stations in Gansu, especially at the high altitude stations; however, the change trends in annual and seasonal precipitation over Gansu were not significant as expected. Furthermore, the 29 stations were spatially grouped using hierarchical clustering method. The regional-averaged temperature anomalies also showed a significant warming trend beginning at the end of 1970s. Spatial variations were also observed in the annual and seasonal precipitation over Gansu. In general, precipitation increased in the western part of Gansu while decreased in the eastern part. Additionally, the wavelet analyses revealed that the tele-connection between large scale circulation and summer precipitation varied not only from region to region, but also was different at different time scale and different time periods. Analysis of large-scale atmospheric circulation changes showed that a strengthening anticyclonic circulation, increasing geopotential height and rapid warming over the Eurasian continent were considered to be attributable to climate change in Gansu and even in NWC.
关键词Climate Extreme Trend Spatial Pattern Periodicity Atmospheric Circulation
DOI10.1016/j.atmosres.2017.07.001
项目资助者Youth Innovation Promotion Association, CAS(2016195) ; CAS(KZCX2-EW-QN209, QYZDJ-SSW-DQC031) ; S & T Service Network Initiative(KFJ-EW-STS-127-2) ; National Natural Science Foundation of China(31570423)
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收录类别SCI
关键词[WOS]CIRCUMGLOBAL TELECONNECTION ; EXTREME PRECIPITATION ; SUMMER RAINFALL ; TRENDS ; CLIMATE ; MONSOON ; 20TH-CENTURY ; REGION ; INDEXES ; EVENTS
文章类型Article
语种英语
WOS研究方向Meteorology & Atmospheric Sciences
WOS记录号WOS:000412250700011
引用统计
被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cn/handle/133337/23443
专题海岸带信息集成与综合管理实验室
通讯作者Gao, Meng; Gao, Meng(Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Shandong, Peoples R China)
作者单位1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Gansu, Peoples R China
2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Shandong, Peoples R China
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GB/T 7714
Wen, Xiaohu,Wu, Xiaoqing,Gao, Meng,et al. Spatiotemporal variability of temperature and precipitation in Gansu Province (Northwest China) during 1951-2015[J]. ATMOSPHERIC RESEARCH,2017,197:132-149.
APA Wen, Xiaohu,Wu, Xiaoqing,Gao, Meng,&Gao, Meng.(2017).Spatiotemporal variability of temperature and precipitation in Gansu Province (Northwest China) during 1951-2015.ATMOSPHERIC RESEARCH,197,132-149.
MLA Wen, Xiaohu,et al."Spatiotemporal variability of temperature and precipitation in Gansu Province (Northwest China) during 1951-2015".ATMOSPHERIC RESEARCH 197(2017):132-149.
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