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

Evaluation of WRF Model Hydrometeors Based on TMI Observations Using an Indirect Method
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使用间接方法基于 TMI 观测评估 WRF 模型水凝物

DOI:
10.1080/16742834.2012.11446962
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发表时间:
2012-01
影响因子:
2.3
通讯作者:
litianyi
litianyi
中科院分区:
地球科学4区
文献类型:
--
作者:
FUyunfei;hengzhiwei;litianyi

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利用热带降雨测量任务(TRMM)微波成像仪(TMI)观测的微波辐射传输(MWRT)模式和微波亮温(TBS)模式,用间接方法评估了2004年8月查巴台风过程中天气研究和预报(WRF)模式产生的水流星。本研究将与WRF模式相连接的微波辐射传输模式模拟的TBS与由TMI得到的观测TBS进行了比较,并分析了两者之间的差异。结果表明,WRF模式低估了台风中心内部液态和冰状水流物的数量和面积。结果还表明,在垂直极化下,模拟的TBS与观测到的TBS之间有较好的一致性。
Abstract 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.
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