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《Torrential Rain and Disasters》 2008-02
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An Experiment of Mesoscale Atmospheric Model AREM Coupled with Ocean Wave

ZHAO Wei1,XU You-ping2,CHENG Rui2,YANG Zhi-zhong2,YANG lei1(1.Institute of Meteorology,PLA University of Science and Engineering,Nanjing 211101; 2.Beijing Institute of Applied Meteorology,Beijing 100029)  
Based on the mesoscale atmospheric model AREM and the popular wave model WAVEWATCH-III,a two-way regional mesoscale atmosphere-ocean wave coupling model has been built with pipe communication technology considered the air-sea interaction fully.The near-surface wind directly drove the state of ocean wave;on the other hand,the ocean wave energy fed back to air by changing the momentum,sensible heat and latent heat between air and sea through the spray and the roughness related with the wave age.The coupled system has successfully forecasted No.0205 typhoon Rammasun.It has been found that under high wind conditions,both the roughness and spray had a large effect on the typhoon system.Sea spray increased the intensity and precipitation of typhoon through enhancing the latent heat flux and sensible heat flux,while the roughness enhances air-sea momentum exchange(friction)to decrease the intensity and precipitation of typhoon.Moreover,the typhoon track was sensitive to sea spray but little to roughness.
【Fund】: 国家“973”项目“我国南方致洪暴雨监测与预测的理论和方法研究”第四课题(2004CB418304);; 国家公益性行业专项“AREM中尺度数值预报模式资料同化及关键物理过程技术研究”(GYHY(QX)2007-6-12)共同资助
【CateGory Index】: P457.8
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