CLIMATOLOGICAL CHARACTERISTICS FOR THE ONSET OF ASIAN SUMMER MONSOON AS REVEALED BY HIRS-Tb12 AND DROUGHT AND FLOODS IN EASTERN CHINA  

作　　者：施宁 蒋尚城 严明良 

机构地区：[1]JiangsuInstituteofMeteorologicalSciences [2]DepartmentofAtmosphericSciencesofPekingUniversity [3]JiangsuMeteorologicalObservatory

出　　处：《Journal of Tropical Meteorology》2002年第2期141-149,共9页热带气象学报（英文版）

基　　金：Essential Scientific Research Project in the national 9th five-year development plan (96-908-05-06-08)

摘　　要：As shown in comparison and study of the HIRS-Tb12 data and conventional data, temperature, humidity and vertical motion are structured differently in the Southern and Northern Hemispheres, which are well depicted with the HIRS-Tb12 data. When high pressures rapidly decrease over the regions of South China Sea and Arabian Sea with the HIRS-Tb12 less than 200 W/m2, monsoons will set off in the South China Sea, Arabian Sea and Bay of Bengal, respectively. From a year of significant drought to one of significant floods, the trend of evolution is significantly different in the downdraft areas of the subtropical highs between the two hemispheres.As shown in comparison and study of the HIRS-Tb12 data and conventional data, temperature, humidity and vertical motion are structured differently in the Southern and Northern Hemispheres, which are well depicted with the HIRS-Tb12 data. When high pressures rapidly decrease over the regions of South China Sea and Arabian Sea with the HIRS-Tb12 less than 200 W/m2, monsoons will set off in the South China Sea, Arabian Sea and Bay of Bengal, respectively. From a year of significant drought to one of significant floods, the trend of evolution is significantly different in the downdraft areas of the subtropical highs between the two hemispheres.

关 键 词：HIRS-Tb12 downdraft area of subtropical high Asian monsoons drought and floods in eastern China 

分 类 号：P426.616[天文地球—大气科学及气象学]