热带气象学报2011，Vol.27Issue(6)：797-804,8.DOI:10.3969/j.issn.1004-4965.2011.06.002
夏季西北太平洋台风生成数的敏感性因子
SENSITIVITY FACTORS FOR TYPHOON GENESIS OVER THE WESTERN NORTH PACIFIC DURING JULY-SEPTEMBER
摘要
Abstract
The paper compares the correlations between each factor of Typhoon Genesis Index and the number of typhoons over the Northwest Pacific that occurred from July to September. It also compares the characters of zonal departure distribution of each factor in primary typhoon source areas in the Northern Hemisphere. Results show that the vorticity factor is a key that mainly determines the typhoon number over the Western North Pacific. The annual variability and the advantages of vorticity factors are also analyzed for key areas representing the change in the number of these typhoons. Results show that the annual variability of the vorticity in key areas is significantly correlated with EN SO, AAO and cold air activity over Australia, which reflects that the number of these typhoons is affected by the Antartica oscillation and Southern Oscillations in the Southern Hemisphere and ENSO. Vorticity factors have much advantages in representing the yearly variability of the number of these typhoons, because their significant correlations with the number of these typhoons and typhoon genesis are clear in physical meaning and regional consistency. Those characters are important for researches on impacting mechanisms of the number of these typhoons and simulation of climate models.关键词
气候学/统计特征/对比分析/涡度因子/敏感性Key words
climatology/ statistical characters/ contrastive analysis/ vorticity factors/ sensitivity分类
天文与地球科学引用本文复制引用
吴胜安,李涛,孔海江..夏季西北太平洋台风生成数的敏感性因子[J].热带气象学报,2011,27(6):797-804,8.基金项目
国家重点基础研究发展计划项目(2009CB421404、 2007CB411802) （2009CB421404、 2007CB411802）
国家海洋局第三海洋研究所基本科研业务费专项资金资助项目(海三科2009003) （海三科2009003）
国家海洋专项资助项目(908-02-01-02)共同资助 （908-02-01-02）
