摘要
本文用中国气象局上海台风研究所整编的《热带气旋年鉴》资料,对1951—2006年登陆我国的热带气旋频数的年月际变化及异常年情况进行统计分析,并对比分析同期的大气环流特征值,指出登陆我国的热带气旋频数与大尺度的大气环流以及海面温度具有一定的相关性;且在登陆频数异常偏多年和异常偏少年之间,大气环流特征值有较明显的差异,尤其是北半球副高强度指数表现出一种比较明显的反位相关系;此外,还发现登陆频数异常偏多年多为拉尼娜年,异常偏少年多为厄尔尼诺年。
In this paper,the data from Tropical Cyclone Annuals from 1951 to 2006 which were published by Shanghai Typhoon Institute of Chinese Meteorological Administration were used to analyze the annual and monthly variation of landfalling tropical cyclone frequency in China and their anomaly circumstances, and the atmospheric circulation characteristic values.Results showed that the landfalling tropical cyclone frequency was related with the large-scale atmospheric circulation and sea surface temperature to some extent.Furthermore,there were obvious differences in atmospheric characteristic values between the years with more tropical cyclones landed and the years with less tropical cyclones landed.Especially, there was an obvious anti-phase relationship for the intensity index of subtropical high in the Northern Hemisphere.In addition,the year with more tropical cyclones landed usually belonged to the La Nina year,but the year with less tropical cyclone landed usually belonged to the El Nino year.
出处
《大气科学研究与应用》
2008年第1期84-90,共7页
Atmospheric Science Research and Application