TRMM测雨资料在中国的验证分析
首发时间:2009-02-23
摘要:将1998年~2005年的TRMM 3B42测雨资料与中国624个气象站的实测资料分别从日和月的尺度进行了对比分析。在对比分析的过程中采用了相关系数、散点斜率、最值分析、方差检验等统计量进行统计分析。结果表明: TRMM月测雨资料与实测资料相关性很好; TRMM反演的日降雨资料与实测资料散点斜率均小于1;从整体量上分析,TRMM测雨资料与实测资料相差较小;TRMM月雨量资料总体趋势与实测资料很接近,而日测雨资料随时间波动的程度与实测值相差甚远;TRMM的日降水可信度沿东南~西北逐渐降低。
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The validation of TRMM in P.R. China
Abstract:Using TRMM data and 624 Weather stations’ precipitation data to make a comparison and analysis. Adopted statistic varieties as followed: correlation, scattered plots’ slope, maximum error, F-test and the result showed that the monthly correlation presents good outputs with the actual data, the amount of the two sets of data associate little discrepancy, the fluctuation of the daily TRMM rainfall on the time serious displayed a totally different performance with that of the weather station, the reliability descends form the southeast to the north west.
Keywords: TRMM 3B42 comparison weather station P.R.China
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No.2951742952112353****
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