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| Temporal Variations of the Frontal and Monsoon Storm Rainfall during the First Rainy Season in South China |
| YUAN Fang,WEI Ke,CHEN Wen,FONG Soi Kun,LEONG Ka Cheng |
| 1. Center for Monsoon System Research, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100190, China,1. Center for Monsoon System Research, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100190, China,1. Center for Monsoon System Research, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100190, China,2. Macao Meteorological and Geophysical Bureau, Macao 999078, China,2. Macao Meteorological and Geophysical Bureau, Macao 999078, China |
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Abstract The temporal variations in storm rainfall during the first rainy season (FRS) in South China (SC) are investigated in this study. The results show that the inter-annual variations in storm rainfall during the FRS in SC seem to be mainly influenced by the frequency of storm rainfall, while both frequency and intensity affect the inter-decadal variations in the total storm rainfall. Using the definitions for the beginning and ending dates of the FRS, and the onset dates of the summer monsoon in SC, the FRS is further divided into two sub-periods, i.e., the frontal and monsoon rainfall periods. The inter-annual and inter-decadal variations in storm rainfall during these two periods are investigated here. The results reveal a significant out-of-phase correlation between the frontal and monsoon storm rainfall, especially on the inter-decadal timescale, the physical mechanism for which requires further investigation.
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Received: 16 February 2010
Revised: 02 July 2010
Accepted: 02 September 2010
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