| Weather and Climate |
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| Spatiotemporal Characteristics of Drought over China during 1961—2009 |
| LIU Xiao-yun1,2,3, LI Dong-liang1, WANG Jing-song2 |
1.Nanjing University of Information Science & Technology, Nanjing 210044, China;
2.Key Laboratory of Arid Climatic Change and Disaster Reduction of Gansu Province, Lanzhou Institute of Arid Meteorology, China Meteorological Administration, Lanzhou 730020, China;
3.Jiuquan Meteorological Bureau, Jiuquan 735000, Gansu, China |
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Abstract Based on the data of monthly precipitation and monthly average temperature of 589 meteorological stations over China from 1961 to 2009, the spatial anomaly and temporal evolution characteristics of annual standard drought index are studied by using EOF, REOF, Wavelet analysis and Mann-Kendall test. Main results have been shown as follows. Abnormality of the annual standard drought index over China was significant in ten areas, just as Hetao northern China, middle and lower reaches of Yangtze River, southern China, main part of northeast China, southern Shaanxi eastern Qinghai, Yunnan-Guizhou-Guangxi hilly area, northern Xinjiang, western Sichuan eastern Tibet Plateau, eastern Liaoning, and Shandong northeastern Henan. Among them, the climate became significantly dryer in seven regions and it became significantly wetter in 3 regions. The most significantly drying region was Yunnan-Guizhou-Guangxi hilly area and the most significantly wetting region was northern Xinjiang. The abrupt change took place in 1980 in Yunnan-Guizhou-Guangxi hilly area, and the abrupt change also took place in 1980 in northern Xinjiang for arid-wet change. There existed multiple time scale features over China for arid-wet change according to wavelet energy spectrum, and the fluctuation period of 2~4 years was the most significant. The main period was 3 years over China, and there were main periods of 22 years and 8 years in southern Shaanxi eastern Qinghai for arid-wet change.
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Received: 10 June 2011
Published: 20 March 2012
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| [1]符淙斌,马柱国.全球变化与区域干旱化[J].大气科学,2008,32(4):752-760.[2]Solomon S,Qin D,Manning M,et al.Climate Change 2007:The Physical Science Basis. Contribution of Working Group I to the Third Assessment Report of the IPCC[R].Cambridge,United Kingdom and New York,USA:Cambridge University Press,2007:996.[3]秦大河,陈振林,罗勇,等.气候变化科学的最新认知[J].气候变化研究进展,2007,3(2):63-73.[4]任国玉,郭军,徐铭志,等.近50年来中国地面气候变化的基本特征[J].气象学报,2005,63(6):942-956.[5]竺可桢.东亚季风与中国降水[J].地理学报,1934,(1):1-28.[6]林学椿,于淑秋.近40年中国气候趋势[J].气象,1990,16(10):16-22.[7]袁云,李栋梁,安迪,等.基于标准化降水指数的中国冬季干旱分区及气候特征[J].中国沙漠,2010,30(4):917-925.[8]赵燕宁,时兴和,王式功,等.青海河湟谷地气候及干旱变化研究[J].中国沙漠,2006,26(1):54-59.[9]李茜,李栋梁.河套及邻近地区530年旱涝基本气候特征与演变[J].高原气象,2007,26(4):716-723.[10]李栋梁,魏丽,蔡英,等.中国西北现代气候变化事实与未来趋势展望[J].冰川冻土,2003,25(2):135-142.[11]王劲松,黄玉霞,冯建英,等.径流量Z指数与Palmer指数对河西干旱的监测[J].应用气象学报,2009,20(4):471-477.[12]王志伟,翟盘茂,武永利.近55年来中国10大水文区域干旱化分析[J].高原气象,2007,26(4):874-880.[13]施雅凤.中国西北气候由暖干向暖湿转型问题评估[M].北京:气象出版社,2003:124.[14]马柱国,黄刚,甘文强,等.近代中国北方干湿变化趋势的多时段特征[J].大气科学,2005,29(5):671-681.[15]马柱国,符淙斌.中国干旱和半干旱带的10年际演变特征[J].地球物理学报,2005,48(3):519-525[16]马柱国,任小波.1951—2006年中国区域干旱化特征[J].气候变化研究进展,2007,3(4):195-201.[17]任福民,史久恩.我国干旱半干旱区降水的特征分析[J].应用气象学报,1995,6(4):501-504.[18]吴洪宝,吴蕾.气候变率诊断和预测方法[M].北京:气象出版社,2005:219.[19]Torrence C,Compo G P.A practical guide to wavelet analysis[J].Bulletin of American Meteorological Society,1998,79(1):61-78.[20]张强,高歌.我国近50年旱涝灾害时空变化及监测预警服务[J].科技导报,2004:21-24.[21]杨杰,侯威,封国林,等.干旱破纪录事件预估理论研究[J].物理学报,2010,59(1):665-674[22]施雅风,沈永平,李栋梁,等.中国西北气候由暖干向暖湿转型的特征和趋势探讨[J].第四纪研究,2003,23(2):152-164.[23]魏凤英.现代气候统计诊断与预测技术[M].北京:气象出版社,1999.[24]吴爱敏.西北地区伏期干旱特征及影响因子分析[J].中国沙漠,2008,28(3):572-578.[25]杨莲梅,杨涛,赵玲,等.新疆北部夏季降水与海温异常的关系[J].中国沙漠,2010,30(5):1215-1220.[26]Dai X G,Wang P,Chou J F.Multiscale characteristics of the rainy season rainfall and interdecadal decaying of summer monsoon in North China[J].Chinese Science Bulletin,2003,48(24):2730-2734.[27]魏娜,巩远发,孙娴,等.西北地区近50 a降水变化水汽输送特征[J].中国沙漠,2010,30(6):1450-1457. |
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2012, Vol. 32 
