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中文摘要: 利用非静力平衡的中尺度模式MM5V3,对1997年8月20日Winnie台风减弱的热带风暴,进行了48h数值模拟。结果表明:MM5不仅比较好地模拟出高空形势场,还成功地模拟出了强降水的时间和强度。应用模拟出的物理量对这次过程进行了诊断分析,并对暴雨形成机制进行了讨论。
中文关键词: 热带风暴,大暴雨,数值模拟
Abstract:With the nonhydrostatic mesoscale model(MM5V3),the evolution of typhoon Winnie after landfall is simulated.Verified against observations, the synoptic-scale circulation, height field, temperature field and precipitation are successfully reappeared. The diagnostic analysis in three aspects (the vapor conditions, the dynamic conditions and the vertical layer condition) is made. Finally, the mechanism of Liaoning extremely heavy rain is discussed.
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基金项目:国家自然科学基金项目40075023资助
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引用文本:
马福全,沈桐立,张子峰,隋东,2005.一次热带风暴造成辽宁暴雨的数值模拟研究[J].气象,31(9):8-12.
,2005.Numerical Simulation of a Heavy Rainfall by a Landing Northward Tropical Cyclone[J].Meteor Mon,31(9):8-12.
马福全,沈桐立,张子峰,隋东,2005.一次热带风暴造成辽宁暴雨的数值模拟研究[J].气象,31(9):8-12.
,2005.Numerical Simulation of a Heavy Rainfall by a Landing Northward Tropical Cyclone[J].Meteor Mon,31(9):8-12.