对流天气系统自动站雨量资料同化对降雨预报的影响

丁伟钰, 万齐林, 闫敬华, 蒙伟光, 陈子通. 对流天气系统自动站雨量资料同化对降雨预报的影响[J]. 大气科学, 2006, 30(2): 317-326. DOI: 10.3878/j.issn.1006-9895.2006.02.14

引用本文:

丁伟钰, 万齐林, 闫敬华, 蒙伟光, 陈子通. 对流天气系统自动站雨量资料同化对降雨预报的影响[J]. 大气科学, 2006, 30(2): 317-326. DOI: 10.3878/j.issn.1006-9895.2006.02.14

DING Wei-Yu, WAN Qi-Lin, YAN Jing-Hua, MENG Wei-Guang, CHEN Zi-Tong. Variational Assimilation of Automatic Weather Stations Rainfall in Convective Systems and its Impact on Rain Forecast[J]. Chinese Journal of Atmospheric Sciences, 2006, 30(2): 317-326. DOI: 10.3878/j.issn.1006-9895.2006.02.14

Citation:

DING Wei-Yu, WAN Qi-Lin, YAN Jing-Hua, MENG Wei-Guang, CHEN Zi-Tong. Variational Assimilation of Automatic Weather Stations Rainfall in Convective Systems and its Impact on Rain Forecast[J]. Chinese Journal of Atmospheric Sciences, 2006, 30(2): 317-326. DOI: 10.3878/j.issn.1006-9895.2006.02.14

对流天气系统自动站雨量资料同化对降雨预报的影响

Variational Assimilation of Automatic Weather Stations Rainfall in Convective Systems and its Impact on Rain Forecast

摘要: 利用GRAPES(Global and Regional Assimilation and Prediction Enhanced System,全球/区域同化预报系统)三维变分同化系统,针对对流天气系统特点,用改进的郭晓岚对流参数化方案作为观测算子,同化广东省自动站记录的对流天气系统的雨量资料,并且与同化探空资料进行了比较.在雨带有明显改进的区域,分别同化这两种资料都可以调整大气低层水汽辐合增加(或辐散),对流层中下层增暖增湿(或变冷变干),从而增加(或减少)降水,表明降水的同化方案对初始场的调整在一定

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