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Relationship between black body temperature and water vapour,precipitation and inversion layer

LI Hao,LI Yi,ZHOU Cheng-jun,LIAO Fang-yu(Institute of Meteorology,PLA Univ.of Sci.&Tech.,Nanjing 211101,China)  
In order to improve the application of the satellite data,with GMS-5 multi-channel data obtained from 23 main raining processes in Nanjing region in 1996 and 1997,the characters of multi-channel different TBB(DT) were analyzed with the principle of infrared radiation transfer,and then the influence of the water vapour distributing and the inversion layer position on the TBB and the reasons were discussed.Finally the relationship between the DT and the local precipitation probability and intensity also discussed.The result shows that the perpendicularity distributing of the vapor of water is an important factor which affects the black body temperature, and there is clese relationship between the inversion layer position and the multi-channel different TBB(DT).
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