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中文摘要: 分析了“96．8”暴雨的流场和温湿场，用MM4中尺度数值模式研究了低层弱冷空气活动对此次特大暴雨过程的影响。结果指出，低层弱冷空气活动对河北省中南部的暴雨落区及强度有很大的影响，它有利于河北省中南部低层辐合的加强、上升运动的加剧和水汽、能量在此处的堆积。
中文关键词: 弱冷空气，暴雨，模拟
Abstract:The stream field and thermohyet field of heavy rain in August 1996 were analysed and the low-level weak cold air influence on the heavy rain by means of MM4 model was studied.The results indicate that the weak cold air has noticeable effects on the falling area and intensity of the torrential rain.It is favorable to low-level convergence and upward current as well as vapor and energy accumulation in Hebei province.
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基金项目:中国气象局“96．8”特大暴雨分析研究课题
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引用文本：
徐国强,胡欣,1999.弱冷空气对“96.8”暴雨的影响及数值模拟[J].气象,25(7):17-20.
,1999.The Weak Cold Air Influence upon Heavy Rain in August 1996 and Its Simulation[J].Meteor Mon,25(7):17-20.
徐国强,胡欣,1999.弱冷空气对“96.8”暴雨的影响及数值模拟[J].气象,25(7):17-20.
,1999.The Weak Cold Air Influence upon Heavy Rain in August 1996 and Its Simulation[J].Meteor Mon,25(7):17-20.