气象科学2012，Vol.32Issue(2)：145-152,8.DOI:10.3969/2012jms.0014
雷达资料同化对暴雨预报影响的数值模拟研究
Numerical simulation analysis on radar data assimilation for summer rainstorm forecast
摘要
Abstract
Based on the newest version of ARPS from CAPS and its data assimilation system ADAS , one rainstorm procedure in Jiangsu province is simulated by Doppler radar data assimilation on June 5, 2009 in Nanjing. Sensitive experiments of different microphysics procedure and different time interval during which radar data assimilation is processed can provide examples for simulation and forecast in this area. The results indicate as follows. (1) In the case of no convective parameterization for smaller grid scale, warm rain and Schultz microphysics procedures are consistent with each other, and both are consistent with the observations. While for ice microphysics procedure, rainfall increased by several hundred times during first one hour after integration began. (2) In the case of the same parameters, main rainfall area can be simulated by choosing assimilation time of 3, 2, 1 h ahead of 09:00UTC respectively. And the shorter forecast period, the more accurate results of meso-scale information, and the better control of rainfall value. ( 3 ) By means of what is studied above, first one hour cycling assimilation with 6 minutes interval is used to simulate rainstorm procedure, after 2 h integration, intra-cloud detailed meso-scale elemental fields are obtained, and forecasted results are more closer to observations.关键词
暴雨/微物理方案/时间循环同化Key words
Rainstorm/ Microphysics procedure/ Time cycling assimilation分类
天文与地球科学引用本文复制引用
杨艳蓉,曾明剑..雷达资料同化对暴雨预报影响的数值模拟研究[J].气象科学,2012,32(2):145-152,8.基金项目
南京气象雷达开放实验室开放研究基金(BJG200906) （BJG200906）
公益性行业(气象)科研专项(GYHY200806014) （气象）
