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Nonlinear Dynamical Structure of precipitation in China and its Regional Climatic Characters

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5 Author(s)
Guo-lin Feng ; Phys. Sci. & Technol. Collage, Yangzhou Univ., Yangzhou, China ; Shi-quan Wan ; Zhi Rong ; Qi-guang Wang
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The statistical data show that weather (precipitation) in the five dynamic climate characteristic regions simultaneously becomes dry, wet and normal, that is to say, each region possesses a common spatial-temporal characteristic structure. Further analysis of physical mechanisms suggests that the Jianghuai pattern and South China pattern are close related with ENSO, which may results from the effect of the India-East Asia (IEA) tele connection pattern; among the other three patterns North and Northeast China patterns are positively related with the ridge line position of subtropical high, but the ENSO shows no obvious influence on the three patterns, which may be associated with that the regions are mainly out of the weak impact area of ENSO;further more the influence of the ridge line of subtropical high on precipitation in North China is most remarkable. This has instructive significance for the development of regional climate models, and the analysis of precipitation characters and precipitation forecast.

Published in:

Fuzzy Systems and Knowledge Discovery, 2009. FSKD '09. Sixth International Conference on  (Volume:7 )

Date of Conference:

14-16 Aug. 2009