1993年初夏中国东部沿海爆发性气旋形成条件的数值模拟试验
SIMULATION ON FORMATION PREREQUISITES OF EXPLOSIVE CYCLONE OF EARLY JUNE 1993
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摘要: 文中利用PSU/NCAR中尺度模式MM4对1993年6月初发生在中国东部沿海地区的一次爆发性气旋进行了数值试验。结果表明:初夏季节在中国东部沿海气旋爆发性发展必须具备下面两个条件:(1)高空南北支急流中分别存在发展的低槽系统,北部低槽伴有冷空气,南部低槽伴随有强暖湿空气,两低槽在中国东部沿海合并后形成一个深槽,引起地面气旋爆发性发展;(2)东部沿海对流层低层形成一个强水汽通道,这个水汽通道将携带的大量和能量的暖湿空气向气旋爆发地区输送。Abstract: In this paper,the PSU/NACR MM4 model are employed to investigate the prerequisite conditions to a explosive cyclone which happened in June 1-2 1993 at Yellow Sea.Several smoothing testare conducted and the result shows that the merge of the troughs associated with the northern cold airand the southern moistjet,the strong low-level moisture transport channel are two indispensable factors to the explosivecy clone development which happens in China's eastern coastal area in early summer.
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Bosart, L F,Lin S C.A diagnostic analysis of the Presidents'day stormof February 1979. Mon Wea Rev.1984,112,2148-2177
陈受钧.地面摩擦和青藏高原对东北海岸气旋发展的影响.气象学报,1987,45(4):495～499 董立清等.中国东部的爆发性气旋.气象学报,1989,47(3):371～375 仪清菊,丁一汇.东海地区温带气旋爆发性发展的动力学分析.气象学报,1992,50(2):152～166 Anthes R A, Kuo Y-H,Gyakum J R. Numerical simulation ofa case ofexplosive marine cyclogenesis. Mon Wea Rev,1987,111:1174-1188
Hoskins B J,Berrisford P. A potential vorticity perspective of the stormof 15-16 October 1987.Weather,1988,43:122-129
Uccellini L W,Keyser D, Brill K F, etal. The Praisidents'Day cyclone of 18-19 February 1979,influence of upstream trough amplification and associated tropoause folding on rapid cyclogenesis. Mon Wea Rev,1985,113:962-988
Zupanski M,Mcginley J.Numerical analysis of the influence of Jetsand Mountains on Alpine Lee Cyclogenese.Mon Wea Rev,1989,117:154-176
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