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Chinese Agricultural Science Bulletin ›› 2017, Vol. 33 ›› Issue (31): 105-111.doi: 10.11924/j.issn.1000-6850.casb16090109

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Effect of Marine Thermal Anomalies in Central Tropical Pacific on Winter Precipitation in South China: A Numerical Simulation

  

  • Received:2016-09-23 Revised:2017-10-07 Accepted:2017-03-29 Online:2017-11-27 Published:2017-11-27

Abstract: The paper aims to analyze the effect of rising SST at the central tropical Pacific Ocean on winter precipitation in south China. We simulated a typical large-scale precipitation in January 2008 by using the Regional Climate Model (RegCM) developed at the International Pacific Research Center (IPRC). The results showed that: this mode could well simulate the persistent rain (snow) process, and when the disturbance heat source in the central tropical Pacific Ocean joined, most parts of south China were mainly dominated by the updraft, and the water vapor transportation was enhanced in South China Sea, which was conducive to the occurrence of rain and snow in south China.