摘要
建立了用ＧＭＳ－５红外亮温资料反演大气可降水量的分裂窗统计法。初步试验结果表明，分裂窗统计法反演的ＲＭＳ误差为０．３７ｇｃｍ－２。优于用ＧＯＥＳ的分裂窗资料反演可降水量的精度，达到或超过用ＡＶＨＲＲ分裂窗资料反演可降水量的精度。对月平均水汽分布的比较显示，反演可降水量分布与实际探空资料获得的分布是一致的。
The split window statistical method for retrieval of atmospheric precipitable water is developed by GMS5 infrared brightness temperature measurements.The preliminary test shows that the RMS error of the method is 0.37g·cm-2.The precision is superior to that of GOES split window retrieval method.And it not only comes up to but also is superior to that of AVHRR split window estimations.The comparison of the monthly mean precipitable water distribution shows that the retrieval U field is in good agreement with that of the conventional radiosonde observation.
出处
《北京大学学报（自然科学版）》
CAS
CSCD
北大核心
1998年第5期631-638,共8页
Acta Scientiarum Naturalium Universitatis Pekinensis
基金
国家自然科学基金
关键词
GMS-5
可降水量
红外亮温
分裂窗统计法
大气
geostationary meteorological satellite (GMS5)
precipitable water (U)
infrared brightness temperature
split window statistical method
