STUDY ON THE RELATIONSHIP BETWEEN BRIGHTNESS TEMPERATURE FROM GMS-5 INFRARED CLOUD IMAGERY AND SURFACE RAIN RATES DURING THE RAINING SEASONS OF FUJIAN PROVINCE  

作　　者：林长城 张长安 林忠敏 林祥明 谢怡芳 郑淑贞 

机构地区：[1]Meteorological Research Institute of Fujian Province [2]Fujian Meteorological Observatory [3]Fujian Meteorological Bureau

出　　处：《Journal of Tropical Meteorology》2003年第1期74-79,共6页热带气象学报（英文版）

基　　金：Scientific Research project of Fujian Meteorological Bureau for 1998

摘　　要：The GMS-5 infrared cloud imagery for two yearly first raining seasons in 1998 and 1999 are used to study the relationship between brightness temperature and surface rain rates. The result shows that it is likely to have large probability of heavy precipitation with the decrease of brightness temperature and the gradual increase of rainfall intensity; for areas of low temperature, the brightness temperature is better determined for atmosphere above rain gauge stations with multiple points sampling than with single point one; for the yearly first raining season, the threshold brightness temperature is set at 4.6℃ for indication of heavy precipitation in the Fujian area.The GMS-5 infrared cloud imagery for two yearly first raining seasons in 1998 and 1999 are used to study the relationship between brightness temperature and surface rain rates. The result shows that it is likely to have large probability of heavy precipitation with the decrease of brightness temperature and the gradual increase of rainfall intensity; for areas of low temperature, the brightness temperature is better determined for atmosphere above rain gauge stations with multiple points sampling than with single point one; for the yearly first raining season, the threshold brightness temperature is set at 4.6℃ for indication of heavy precipitation in the Fujian area.

关 键 词：yearly first raining seasons GMS-5 cloud top temperature rainfall intensity 

分 类 号：P426.62[天文地球—大气科学及气象学]