| ANALYSIS OF CAUSATION OF ABNORMAL MOTION OF LANDING TROPICAL CYCLONES IN GUANGDONG |
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| 作者姓名： | 刘春霞 |
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| 作者单位： | Guangzhou Institute |
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| 摘 要： | 1 INTRODUCTION It is doubtless that TCs making landfalls on Guangdong are one of the important aspects of the research on and prediction of short-term climate changes for the province. With regard to the climate patterns of TCs motion and factors governin…
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| 关 键 词： | 重力势 500-hPa 极地冰 热带气旋 |
ANALYSIS OF CAUSATION OF ABNORMAL MOTION OF LANDING TROPICAL CYCLONES IN GUANGDONG |
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| LIU Chun-xia.ANALYSIS OF CAUSATION OF ABNORMAL MOTION OF LANDING TROPICAL CYCLONES IN GUANGDONG[J].Journal of Tropical Meteorology,2004,10(1):79-86. |
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| Authors: | LIU Chun-xia |
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| Institution: | Guangzhou Institute of Tropical and Marine Meteorology, CMA, Guangzhou, 510080 China |
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| Abstract: | With the 500-hPa geopotential height / SST fields and polar ice from NCEP/NCAR reanalysis source, the work discusses the relationship between abnormal motion of tropical cyclones making landfall on Guangdong province and governing factors like general circulation, polar ice, SST and circulation indexes. It determines how the years of more or fewer tropical cyclones (TCs) distribute for the general circulation, polar ice, SST, conceptual models of all circulation indexes. The results show that (1) when the middle and higher latitudes of the Eurasian continent are mainly of meridional (zonal) circulation in autumn and winter, there are more (fewer) landfalls of TCs; (2) when the SST is warm (cold) in the equatorial eastern Pacific in January April, there are fewer (more) TCs landfall in the province in the current year but more (fewer) landfall the following year, indicating stable and obvious influence of the former on TCs; (3) when there are more (less) polar ice in summer, autumn and winter, or consistently more (less) ice in autumn and winter, there are mostly fewer (more) landfalls than usual. |
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| Keywords: | tropical cyclones circulation SST polar ice |
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