气象Issue(1)：26-33,8.DOI:10.7519/j.issn.1000-0526.2016.01.003
风廓线雷达资料对 GRAPES MESO 数值预报系统影响的初步研究
Impact of Wind-Profiling Radar Data Assimilation on GRAPES MESO Model System
摘要
Abstract
A wind-profiling radar network of China is designed.The assimilation of wind-profiling radar ob-servations anticipated from this network is conducted as a series of observing system simulation experi-ments (OSSEs)to study its impact on the GRAPES MESO model system in a case of south shear line weather.In this OSSEs study,a control simulation without any data assimilated is compared to four OSSE simulations that assimilated wind-profiling radar or sounding data.The root-mean-square error (RMSE)of wind analysis is compared against the control simulation.A significant increase of RMSE of wind analysis is found obviously below 500 hPa level when the wind profile data are used in the assimilation system.The obvious improvement from inclusion of wind profile for RMSE of wind analysis is below 300 hPa roundly. When the wind profile data of troposphere II type are assimilated RMSE of wind analysis is a little larger than that when the wind profile data of boundary layer type are assimilated.The results show the two types of wind-profiling radar neither improve the rainfall prediction obviously,but the rainfall prediction is improved when the sounding data are also assimilated together.关键词
观测系统模拟试验/风廓线雷达/资料同化Key words
observing system simulation experiments (OSSE)/wind-profiling rada/data assimilation分类
天文与地球科学引用本文复制引用
谭晓伟,徐枝芳,龚建东..风廓线雷达资料对 GRAPES MESO 数值预报系统影响的初步研究[J].气象,2016,(1):26-33,8.基金项目
公益性行业（气象）科研专项（GYHY201406006）资助 （）
