摘要
利用日本 GMS 卫星的展宽数字云图资料(Stretched Visible and Infrared Spin Scan Radiome-ter)和中国气象科学研究院的 Doppler 雷达资料,综合卫星和雷达资料进行大范围降水估计的研究。首先把卫星和雷达资料从各自的坐标系中变换到公共坐标系——双标准纬线(30°N 和60°N)Lambert 投影坐标系中,以雷达资料作为判断降水的标准,统计得到降水概率与红外亮度温度及可见光反照率的相关矩阵。然后再把这一相关矩阵应用到一定的卫星探测的大范围中,得出降水区域分布的估计结果。用该方法对1989年7月23日和8月16日两个个例进行了估计计算。
The study of combining satellite and radar data for estimating precipitation on large-scale ismade.S.VISSR data is submitted from GMS of Japan,and radar data from Doppler radar in Chi-nese Academy of Meteorological Sciences,SMA.At first,satellite and radar data in their own co-ordinate system are converted into the Lambert projection coordinate system with two standardparallels:30°N and 60°N.A correlation matrix of the probability of precipitation correlated tobrightness temperature and albedo is yielded by statistics.The,the distribution of the estimatingprecipitation can be obtained by extending the correlation matrix over a designed large-scale.Twoexamples(July 23 and August 16,1989)are tested.
出处
《应用气象学报》
CSCD
北大核心
1992年第S1期74-81,共8页
Journal of Applied Meteorological Science
