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)
发表期刊ATMOSPHERIC RESEARCH
ISSN0169-8095
2017-11-15
卷号197页码:132-149
关键词Climate Extreme Trend Spatial Pattern Periodicity Atmospheric Circulation
研究领域Meteorology & Atmospheric Sciences
DOI10.1016/j.atmosres.2017.07.001
产权排序第2完成单位
作者部门海岸带信息集成与综合管理实验室
英文摘要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.
文章类型Article
资助机构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)
收录类别SCI
语种英语
关键词[WOS]CIRCUMGLOBAL TELECONNECTION ; EXTREME PRECIPITATION ; SUMMER RAINFALL ; TRENDS ; CLIMATE ; MONSOON ; 20TH-CENTURY ; REGION ; INDEXES ; EVENTS
研究领域[WOS]Meteorology & Atmospheric Sciences
WOS记录号WOS:000412250700011
引用统计
被引频次:75[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
专题中国科学院海岸带环境过程与生态修复重点实验室_海岸带信息集成与战略规划研究中心
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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