气象科学2018，Vol.38Issue(1)：57-65,9.DOI:10.3969/2017jms.0028
天气雷达反射率资料订正前后在ARPS模式中的同化试验对比
Corrected and original weather radar reflectivity data assimilation in numerical model ARPS
摘要
Abstract
Taking advantage of reflectivity from the Precipitation Radar(PR) onboard the Tropical Rainfall Measuring Mission (TRMM) to calibrate weather radar at Changzhou and Nanjing.Reflectivity are added directly to the mesoscale model Advanced Regional Prediction System(ARPS) by its data processing system ARPS Data Analysis System (ADAS) of simulating two rainstorm process around Jiangsu Province.Each process includes three experiments:the control experiment,original and corrected reflectivity separately assimilated experiment.Results show that:(1) Reflectivity data assimilation improved the initial moisture field,and the rainfall prediction (rainfall area and precipitation) was more close to observation data.(2)Corrected reflectivity assimilation adjusted initial moisture field and ascending motion (The adjustment effect is mainly reflected in the first 2 to 3 hours),and improved the rainfall prediction than original reflectivity assimilation.The correction of radar reflectivity data has improved quality of the radar data.关键词
雷达反射率因子/TRMM/PR订正/同化试验Key words
Radar reflectivity factor/TRMM/PR correction/Assimilation experiment分类
天文与地球科学引用本文复制引用
张晗昀,王振会,楚志刚,杨艳蓉,张蕾..天气雷达反射率资料订正前后在ARPS模式中的同化试验对比[J].气象科学,2018,38(1):57-65,9.基金项目
公益性行业(气象)科研专项(GYHY201306078) （气象）
国家自然科学基金资助项目(31400494) （31400494）
江苏省自然科学基金资助项目(BK20140977) （BK20140977）
