大气科学2012，Vol.36Issue(2)：350-360,11.DOI:10.3878/j.issn.1006-9895.2011.11052
FY-2C云迹风资料同化应用对台风预报的影响试验研究
Impact of Application of Cloud Motion Wind Data from FY-2C Satellite on Simulation of Typhoon Cases
摘要
Abstract
The control experiment and two assimilation experiments of WRF regional mesoscale model prediction are verified for typhoon Haitang (0505). Based on the WRF-3DVAR system, the FY-2C infrared and water vapor cloud motion winds are assimilated into WRF model. The assimilation data of one assimilation test are the cloud motion winds before quality control and those of the other are cloud motion winds after quality control. The effect of the cloud motion winds on the prediction of rain and wind field is analyzed through comparing the three tests. Results show that the assimilation of the quality-controled cloud motion winds into the initial fields has positive impact on prediction of the area and intensity of rain, and also indicate that different grades of Ts score are improved by far than the other tests. The assimilation makes improvement in the forecast of wind. The same approach as that for Haitang is taken to simulate other two typhoon cases and the Ts scores of the forecast rainfall are given. And the results for the two typhoon cases show similar conclusions. Therefore, assimilating cloud motion winds with reasonable control and selection can well improve the descriptive possibility of wind field in WRF model, supply the mesoscale information in the initialization field to improve the simulation result of precipitation and wind field and have positive impact on the forecasting ability of WRF model finally.关键词
数值模拟/云迹风/质量控制/Ts评分/风场检验Key words
numerical simulation/ cloud motion wind/ quality control/ TS score/ wind field verification分类
天文与地球科学引用本文复制引用
刘瑞,翟国庆,王彰贵,朱业,沈杭锋,徐亚钦..FY-2C云迹风资料同化应用对台风预报的影响试验研究[J].大气科学,2012,36(2):350-360,11.基金项目
国家自然科学基金资助项目40975021,国家公益性行业科研专项GYHY201005033和GYHY201006007 （）
