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Journal of Geographical Sciences >

2005 , Vol. 15 >Issue 4: 459 - 466

DOI: https://doi.org/10.1360/gs050409

Climate and Environmental Change

Climatic trends of different intensity heavy precipitation events concentration in China

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  • 1. Jiangsu Institute of Meteorological Sciences, Nanjing 210008, China;
    2. Department of Atmospheric Science, Nanjing University, Nanjing 210093, China;
    3. Nanjing University of Information Science &|Technology, Nanjing 210044, China

Received date: 2005-04-21

  Revised date: 2005-07-12

  Online published: 2005-12-25

Supported by

Concentrated fund item of national science and technology foundation work, No.2001DEA30029-0604; Jiangsu natural science foundation, No.BK2005163

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Abstract

Based on 740 stations of daily precipitation datasets in China, the precipitation- concentration degree (PCD) and precipitation-concentration period (PCP) of different intensity durative precipitation events were calculated to analyze their statistical characteristics, mainly including spatial and temporal distributions, variations and climatic trends of the two parameters of the durative heavy precipitation events in China. It is proved that these two parameters of heavy rainfall can display the temporal inhomogeneity in the precipitation field. And it is also found that there is a good positive relationship between the precipitation-concentration degree and annual rainfall amount in the Eastern and Central China. This method can be applied in flood assessment and climate change fields.

Key words： durative heavy precipitation; climatic trends; precipitation-concentration degree (PCD); precipitation-concentration period (PCP); China

Cite this article

XIE Zhiqing, DU Yin, JIANG Aijun, DING Yuguo . Climatic trends of different intensity heavy precipitation events concentration in China[J]. Journal of Geographical Sciences, 2005 , 15(4) : 459 -466 . DOI: 10.1360/gs050409

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