期刊
WEATHER AND FORECASTING
卷 25, 期 2, 页码 587-593出版社
AMER METEOROLOGICAL SOC
DOI: 10.1175/2009WAF2222305.1
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This study describes an unproved statistical scheme for predicting the annual number of tropical cyclones (TCs) making landfall along the coast of south China using data from 1965 to 2005 Based on the factors affecting TC behavior inside the South China Sea (SCS). those responsible for TCs making landfall ate identified Equations are then developed using the coefficients of empirical orthogonal functions of these factors to predict. in April, the number of these TCs in the early (May August) and late (September December) seasons, and in June. the number in the period between July to December The new scheme achieves a forecast skill of 51% over climatology. or an improvement of about 11% compared to previous studies. when predicting land falling TC for the whole season, and it seems to be able to capture the decrease in then number in the recent years Analyses of the now patterns suggest that the conditions inside the SCS are apparently the major factor affecting the number of landfalling TCs In years in which this number is above normal, conditions inside the SCS are favorable for TC genesis. and vice versa The strength of the 500-hPa subtropical high also seems to be a factor in determining whether TCs from the western North Pacific (WNP) could enter the SCS and make landfall
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