Evaluation of WRF Model Hydrometeors Based on TMI Observations Using an Indirect Method  

作　　者：FU Yun-Fei HENG Zhi-Wei LI Tian-Yi SHEN Zhong-Ping WANG Yu 

机构地区：[1]School of Earth and Space Sciences, University of Science and Technolo~ of China, Hefei 230026, China [2]Shanghai Climate Center, Shanghai 200030, China

出　　处：《Atmospheric and Oceanic Science Letters》2012年第1期32-37,共6页大气和海洋科学快报（英文版）

基　　金：supported by the Knowledge Innovation Program of the Chinese Academy of Sciences (Grant Nos. KZCX2-YW-Q11-04 and KZCX2-EW-QN507);the National Basic Research Program of China (973 Program,Grant No. 2010CB428601);the National Natural Science Foundation of China (Grant Nos. 40730950 and 41075041)

摘　　要：Using a microwave radiative transfer （MWRT） model with microwave brightness temperatures （TBs） observed from the Tropical Rainfall Measuring Mission （TRMM） Microwave Imager （TMI）, an indirect approach evaluated hydrometeors generated from the Weather Research and Forecasting （WRY） model in the process of CHABA typhoon in August 2004. This study compares the simulated TBs generated from the microwave radioactive transfer model connected to the WRF model with the observed TBs derived from TMI and analyzes the differences between these TBs. The results indicate that the WRF model underestimates the amount and area of liquid and ice hydrometeors inside the typhoon center. The results also indicate relatively better agreement between the simulated and the observed TBs in the vertical polarization than in the horizontal polarization.Using a microwave radiative transfer(MWRT) model with microwave brightness temperatures(TBs) observed from the Tropical Rainfall Measuring Mission(TRMM) Microwave Imager(TMI),an indirect approach evaluated hydrometeors generated from the Weather Research and Forecasting(WRF) model in the process of CHABA typhoon in August 2004.This study compares the simulated TBs generated from the microwave radioactive transfer model connected to the WRF model with the observed TBs derived from TMI and analyzes the differences between these TBs.The results indicate that the WRF model underestimates the amount and area of liquid and ice hydrometeors inside the typhoon center.The results also indicate relatively better agreement between the simulated and the observed TBs in the vertical polarization than in the horizontal polarization.

关 键 词：WRF hydrometeors TMI microwave radiative transfer 

分 类 号：P422[天文地球—大气科学及气象学] S152.7[农业科学—土壤学]