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《Journal of Nanjing Institute of Meteorology》 2004-01
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Spatial Patterns of Precipitation and Dry-Wet Transition Time in Northeast China

LIU Hui-yu,ZHANG Ming-yang,LIN Zhen-shan (Geographical Science College,Nanjing Normal University,Nanjing210097,China)  
Some spatial patterns of precipitation have been studied,the catastrophic points modeling technique has been adopted to study the characteristics of precipitation evolution in Northeast China,and the dry-wet transition times have been computed.Results show that 1)the most typical pattern of precipitation has the dry-wet consistency in all regions,while the other typical patterns show the dry-wet difference between the south and north parts or between east and west parts of the region;2)the new modeling technique is stable to obtain the characteristics of precipitation evolution;3)for most areas and stations in Northeast China,the dry-to-wet transition time is longer than the wet-to-dry transition time,indicating that Northeast China is susceptible to drought.
【Fund】: 国家自然科学基金资助项目(40371108);; 国家"十五"211重点学科建设项目
【CateGory Index】: P468
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