何金海,李俊,李永平. 1991. 澳大利亚冷空气活动影响东亚夏季风的过程——数值试验[J]. 气象学报, 49(2):162-169, doi:10.11676/qxxb1991.024
澳大利亚冷空气活动影响东亚夏季风的过程——数值试验
NUMERICAL EXPERIMENT WITH PROCESSES FOR EFFECT OF AUSTRALIAN COLD AIR ACTIVITY ON EAST-ASIAN SUMMER MONSOON
投稿时间:1989-02-23  修订日期:1989-05-11
DOI:10.11676/qxxb1991.024
中文关键词:  
英文关键词:
基金项目:国家自然科学基金委员会和国家气象局季风科研基金联合资助
作者单位
何金海 南京气象学院 
李俊 南京气象学院 
李永平 南京气象学院 
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中文摘要:
      本文基于诊断分析结果,使用郭晓岚-钱永甫的P-σ坐标5层原始方程球带模式做了澳大利亚冷空气活动影响北半球亚洲夏季风的数值试验。文章分析了亚洲季风地区特别是东亚地区的流场、降水场以及非绝热加热场对澳大利亚地区有、无冷空气活动的不同响应,着重讨论了澳大利亚地区冷空气活动影响东亚夏季风加强北进的传播过程。指出在这种过程中,经向风扰动呈现出由南向北的传播,流场和降水场也有相应的向北移动,其时间退后约12天左右。
英文摘要:
      Based on diagnostic results, a numerical study is made of the processes of Australian cold air activity affecting East Asian summer monsoon by using Kuo-Qian P-σ incorporated coordinate fivelayer primitive equation spherical band model. Analysis is done of the response to the Southern Hemisphere circulation with and without cold air activity in Australia of the flow, rainfall and diabatic heating fields in the monsoon area of Asia, especially, East Asia, with special attention to the intensification and northward march of the monsoon due to the activity.It is found that the processes for the effect transmission are very analogous to the meridional propagation of quasi-40-day oscillation, together with the meridional wind disturbance showing south-north travel and the flow/rainfall fields exhibiting corresponding movement in this. direction, only with a 12-day lag.
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