OBSERVATION RESEARCH FOR THE MEASURING RAINFALL CAPACITY OF TRMM/TMI-85.5G BASED ON PRECIPITATION DATA DURING THE HEAVY RAIN EXPERIMENT IN SOUTHERN CHINA     

吕艳彬  顾雷  李亚萍  高慧林  邵明轩  陶祖钰 《热带气象学报(英文版)》2001,7(2):218-224

The capacity of Tropical Rainfall Measuring Mission (TRMM) Satellite for measuring rainfall was examined by using TMI-85.5 GHz microwave image data and precipitation data during a heavy rainfall experiment in southern China. From comparisons with the distribution of rain amount in an hour with BB T of 85.5 GHz microwave, it is clear that the center of heavy rain corresponds with an area of low BB T value. The location and shape of BB T distribution is similar to that of precipitation, and the larger the rainfall rates, the lower the BB T . A statistic analysis shows that the correlation coefficients between BB T and rain rates is negative and significant. Especially, when the rain rate is over 7 mm/h, the correlation degree between BB T and rain rates is more significant. The results shows that TRMM/TMI-85.5 G has great ability to measure convective heavy rain.  相似文献   

用华南暴雨试验雨量资料对TRMM/TMI-85.5GHz测雨能力的考察   总被引：7，自引：4，他引：7  

吕艳彬  顾雷  李亚萍  高慧林  邵明轩  陶祖钰 《热带气象学报》2001,17(3):251-257

利用华南暴雨试验期间稠密的雨量资料对热带测雨卫星（TRMM）微波成像仪（TMI）频率为85．5GHz（波长0．35cm）的测雨能力进行了考察。通过TMI－85．5GHz亮温分布和一小时雨量分布的对比发现，对流性降水的强雨量中心与TMI－85．5GHz亮温的低值区有很的对应关系，雨带分布和低亮温分布的位置及形状都很相似，雨强的大小和亮温的关系也相当密切：雨强越大，亮温值越低。亮温数值和雨强（指每小时雨量，下同）的相关统计进一步表明：雨强的大小与亮温呈明显的负相关，特别是当雨强达到或超达7mm/h时的相关程度非常显著，从而确认了TMI－85．5GHz的微波遥感对对流性强降水有较好的测雨能力。  相似文献