FY-2C卫星资料在热带风暴“范斯高”预报分析中的应用

Application of the FY-2C Satellite Data on Forecasting Tropical Cyclone "FRANCISCO"

运用FY-2C卫星云图及其相关定量资料TBB,对热带风暴"范斯高"的强度、路径及降水进行了综合分析,归纳出"范斯高"发生发展中云系的一些特征,从而判断其强度变化和移动方向;在降水方面,黑体亮温(TBB)场和降水量有很好的对应关系,TBB场清晰地揭示了"范斯高"的降水分布特征,即五指山以北出现强降水,其中西部最强,而南部降水较弱。

Based on the TBB data and images of FY-2C satellite, the strength of ＂FRANCISCO＂ and its＇track as well as the precipitation are comprehensively analyzed, The TBB features of the tropical cyclone are found to judge the strength change and moving direct. The results also show that TBB can directly and quantitatively present the features of the intensity and distribution of the cloud system with heavy rainfall. The torrential rainfall area is the north and the west of Wuzhi Mount while weak precipitation occurred in the south.