| 水文与水资源 |
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| Analysis on Inner-annual Inhomogeneity Characteristic of Extreme Precipitation Events over Northwest China |
| YANG Jin hu; JIANG Zhi hong; WANG Peng xiang; et al. |
| 1.Lanzhou Institute of Arid Meteorology of China Meteorological Administration/Key Laboratory of Arid Climate Change and Reducing Disaster of Gansu Province/Key Laboratory of Arid Climate Change and Disaster Reduction of China Meteorological Administration, Lanzhou 730020, China; 2.Chengdu Institute of Plateau Meteorology of China Meteorological Administration, Chengdu 610071, China; 3.Dingxi Meteorological Bureau of Gansu Province, Dingxi 743000, Gansu, China; 4.Jiangsu Key Laboratory of Meteorological Disaster in Nanjing University of Information Science & Technology, Nanjing 210044, China |
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Abstract Based on the daily precipitation datasets from 1960 to 2004 recorded at the 112 stations in the five provinces of northwest China, the extreme precipitation threshold of different stations were defined by centesimal value method, the inner-annual inhomogeneity characteristics of extreme precipitation events were analyzed by introducing the new parameters that reflect the temporal distribution of extreme precipitation events:concentration degree(ECD) and concentration period(ECP). The result showed that the average and anomalous spatial distributions of ECD and ECP all existed obvious spatial difference in northwest China, and their anomalous spatial distribution all can be divided into six key areas, namely the north Xinjiang area, the loess plateau and Ningxia plain area, the Qaidam Basin and Hexi Corridor area, the south Xinjiang area, the south Qinghai plateau area, and the Qinba mountainous area. As for temporal distribution of extreme precipitation events, the ECD and ECP all existed remarkable inter-decadal vibration in these six key areas, but their distribution characteristic was inconsistent. Besides, the change tendency was inversed between in the east and in the west of the northwest China.
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Received: 20 July 2006
Published: 20 January 2008
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[1]IPCC.Climate change 2001:the science of climate change[C]∥Houghton J T,Y Ding,D J Griggs,et al.Contribution of Working Group Ⅰ to the Third Assessment Report of the Intergovernmental Panel on Climate Change.Cambridge:Cambridge University Press,United Kingdom and New York,NY,USA,2001:156-159.
[2]Karl T R,Knight R W.Secular trends of precipitation amount,frequency,and intensity in the USA[J].Bull Am Met Soc,1998,79:231-241.
[3]Stone D A,Weaver A J,Zwiers F W.Trends in Canadian precipitation intensity[J].Atmos Ocean,1999,2:321-347.
[4]Yamamoto R,Sakurai Y.Long-term intensification of extremely heavy rainfall intensity in recent 100 years[J].World Resource Rev,1999,11:271-281.
[5]Manton M J,Della-Marta P M,Haylock M R,et al.Trends in extreme daily rainfall and temperature in Southeast Asia and the South Pacific:1961-1998[J].Int J Climatology,2001,21:269-284.
[6]Buffoni L,Maugeri M,Nanni T.Precipitation in Italy from 1833 to 1996[J].Theoretical and Applied Climatology,1999,63:33-40,417-425.
[7]翟盘茂,潘晓华.中国北方近50年温度和降水极端事件变化[J].地理学报,2003,58(增):1-10.
[8]刘小宁.我国暴雨极端事件的气候变化特征[J].灾害学,1999,14(1):54-59.
[9]赵庆云,张武,王式功,等.西北地区东部干旱半干旱区极端降水事件的变化[J].中国沙漠,2005,25(6):904-909.
[10]赵燕宁,时兴合,秦宁生,等.青海南部地区40多年来气候变化的特征分析[J].中国沙漠,2005,25(4):529-532.
[11]马晓波,胡泽勇.青藏高原40年来降水变化趋势及突变检测[J].中国沙漠,2005,25(1):137-139.
[12]张杰,郭铌,荻潇泓.西北地区东部冬季降水与次年沙尘暴发生的关系[J].中国沙漠,2004,24(5):601-606.
[13]方子毅,张建新,廖飞佳.新疆中天山北坡40a夏季降水量变化[J].中国沙漠,2003,23(5):581-585.
[14]王新平,张景光,李新荣,等.沙坡头地区多年降水分布特征、趋势及其变率[J].中国沙漠,2001,21(3):260-264.
[15]南庆红,杨舵,杨青.应用EOF方法分析新疆降水变化特征[J].中国沙漠,2003,23(5):554-559.
[16]Zhang Lujun,Qian Yongfu.Annual distribution features of precipitation in china and their interannual variations[J].Acta Meteorologica Sinica,2003,17(2):146-163. |
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2008, Vol. 28 
