摘要
利用1949—2006年西北太平洋及南海的热带气旋(TC)资料,分析了登陆我国的TC强度、登陆时间、登陆后路径趋向及强度变化等气候特征,并重点讨论了直接登陆华东和登陆台湾后再次登陆华东的TC路径和强度趋势差异。结果表明,直接登陆华东的TC比登陆台湾后再次登陆华东(以下简称为间接登陆)的TC更易北上或北上转向,而间接登陆的TC更易维持西偏北行;另外直接登陆华东的TC登陆后的强度更易维持,其登陆后路径趋向在西北偏西和西南方位的强度明显减弱的百分比率比其它方位的大。
The intensity,landing time,track trend and intensity variation of tropical cyclones（TCs） after landing are analyzed using TC data（From China Meteorological Administration dataset） between 1949 and 2006 in North West Pacific and South China Sea.The trend differences of track and intensity between the TCs that directly land in East China and those making second landing in East China after landing in Taiwan Island are categorically discussed.The results show that the first kind of landing TCs are more likely to go northward or turn while the second kind of TCs have a larger tendency to keep going northwest.The intensity of the first kind of TCs is more persistent than the second one.There is higher proportion for the intensity to be weakened significantly if the TCs keep going west to northwest or southwest after landing.
出处
《热带气象学报》
CSCD
北大核心
2011年第5期649-656,共8页
Journal of Tropical Meteorology
基金
地理信息科学教育部重点实验室开放研究基金(LGISEM0606)资助
关键词
热带气旋
气候特征
登陆我国
tropical cyclone
climatic characteristics
landing in China
