风云三号A星微波湿度计四川盆地上空资料同化个例研究

摘要

In order to study the possibility of using the FY-3 series MWHS data over land operationally,the FY-3A MWHS LEVEL 1 data by WRFDAassimilated two typical rain storm cases over Sichuan Basinassimilating FY-3A MWHS LEVEL1 data could provide neutral positive impacts on forecastsand the large data noise of the FY-3A MWHS would not have any negative impacts on the assimilation and forecasts.This research can be a good reference for further study of the data quality control over land and the assimilating and forecasting experiments for the FY-3 series.%为了进一步研究风云三号微波湿度计陆地上空观测资料应用于业务预报的可能性,选用数据噪音较大的FY-3A星所载的微波湿度计MWHS资料,通过两个四川盆地的典型暴雨个例,研究利用WRFDA在初始时刻同化FY-3A MWHS通道3-5 LEVEL 1的扫描观测资料所产生的同化及预报影响.结果表明,同化FY-3A MWHS通道3-5的观测资料可以对预报产生中性或正面作用,FY-3A MWHS的较大数据噪音也不会对同化及预报产生负面影响.研究为进一步对FY-3系列卫星的相似仪器陆地上空观测资料进行质量控制,并应用于同化和预报试验提供了重要的参考.