| 盛夏高空南支热带东风急流和台风活动的关系 |
| |
| 引用本文： | 张蓝蓝.盛夏高空南支热带东风急流和台风活动的关系[J].热带气象学报,1986(1):62-70. |
| |
| 作者姓名： | 张蓝蓝 |
| |
| 作者单位： | 中山大学气象系 |
| |
| 摘 要： | 本文分析了1968—1981年8月南支热带东风急流的年际变动与台风生成数的关系,通过计算分析了南支急流强弱月热带大气环流的动力结构,联系台风活动频数差异进行了讨论。 最后重点剖析了1979—1981年夏季高空南支东风急流与低纬西南季风逐日演变以及与台风发生发展的关系。
|
| 收稿时间： | 1985/3/16 0:00:00 |
| 修稿时间： | 7/3/1985 12:00:00 AM |
TNE UPPER-LEVER SOUTHERN EASTERLY JET AND THE ACTIVETIES OF TYPHOON |
| |
| ZHANG LANLAN.TNE UPPER-LEVER SOUTHERN EASTERLY JET AND THE ACTIVETIES OF TYPHOON[J].Journal of Tropical Meteorology,1986(1):62-70. |
| |
| Authors: | ZHANG LANLAN |
| |
| Institution: | Department of Meteorology, zhongshan University |
| |
| Abstract: | In this paper, the relationship among the southern branch of the Easterly Jet(SEJ) at the 150 hPa lever near 100°E.Swmonsoon and the activities of typhoon over the South China Sea and western North Pacific is discussed.By using monthly data in August of 1968-1981, it is found that when SEJ is strong(weak), the number of typhoon occuring in August will be more (fewer) than monthly mean value.The calculated results based on objective anlysis show that the dynamic structures are quite different from each other in the months when SEJ is strong or weak. During strong months, the monsoon longitudinal cell locates more poleward and is stronger, the upward motion in the area north to SEJ over the South China Sea and western North Pacific is nore intensive than those during weak months. So it favours the occurrence of typhoon.Furthermore, the daily data of summer in years of 1979-1981 are analysed in detail. The result shows that when SEJ is strong (weak), the SW monsoon on the 850 hPa level south of 10°N over the South China Sea is correspondingly strong (weak) During the period they both are strong,most of typhoons occur. In addition, when SW monsoon over western Pacific is strong, typhoon may occur extremely frequently Finally, It is found that the V component of SEJ directing south provides the way for the upper mass exporting over the tropical disturbance, which will favours the occurrence and development of typhoon. |
| |
| Keywords: | |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《热带气象学报》浏览原始摘要信息 |
| 点击此处可从《热带气象学报》下载免费的PDF全文 |
|
