积云对流参数化对一次梅雨锋暴雨过程影响的模拟检验  

NUMERICAL TEST OF CONVECTIVE PARAMETERIZATION ON THE SIMULATION OF A MEIYU FRONT RAINSTORM

作　　者：彭新东[1] 吴晓鸣[2] 坪木和久 

机构地区：[1]兰州大学大气科学系,甘肃省兰州市730000 [2]兰州气象学校,甘肃省兰州市730021 [3]东京大学海洋研究所

出　　处：《高原气象》1999年第3期451-461,共11页Plateau Meteorology

基　　金：教育部留学回国人员科研启动基金;兰州高原大气物理研究所所长择优基金

摘　　要：应用１９８８ 年版日本谱模式 Ｊ Ｓ Ｍ，对比分析了 Ａｒａｋａｗａ Ｓｃｈｕｂｅｒｔ、 Ｋａｉｎ Ｆｒｉｔｓｃｈ 、 Ｋｕｏ Ａｎｔｈｅｓ 和 Ｇａｄｄ Ｋｅｅｒｓ 等几种积云对流参数化方案在梅雨锋暴雨对流系统模拟中的表现。对１９８８ 年７ 月中旬日本九州地区一次梅雨暴雨的模拟结果显示，建立在多种积云簇作用平衡基础上、并刻划了积云内上升和下沉气流作用的 Ａｒａｋａｗａ Ｓｃｈｕｂｅｒｔ 方案表现最佳。结果同时显示，在模式积云对流与模式环境场的相互作用过程中，高质量的初始条件和积云对流参数化方案对理想的中尺度数值模拟都是非常必要的。By using Japan Spectral Model (JSM) version 1988, Arakawa Schubert, Kain Fritsch, Kuo Anthes and Gadd Keers type cumulus convective parameterization schemes (CPSs) are tested to simulate a convective system in concern with Meiyu front rainstorm. A Meiyu front heavy rainfall of July 1988, which occurred in Kyushu Japan, is taken as a case study. The simulation results show that Arakawa Shubert scheme, which includes updraft and moist downdraft, being the best one in 40 km model, because it is based on quasiequilibrium between the large scale changes and cumulus convection. The results also show that quality CPSs and initial condition is very important for reasonable mesoscale simulation, in consideration of the interaction of sub ensembles and its environment.

关 键 词：梅雨锋 中尺度模拟 积云对流 暴雨过程 模拟检验 

分 类 号：P458.121.1[天文地球—大气科学及气象学] P426.62