JOURNAL ARTICLE
层结大气中的内惯性重力孤立波与颮线形成的非线性过程
Year: 1983 Journal: Science in China Series B-Chemistry Biological Agricultural Medical & Earth Sciences (in Chinese) Publisher: Science China Press
Abstract
本文从层结旋转大气三维非静力平衡方程出发,导出了平行基本气流中的有限振幅扰动波的KdV方程. 对于层结为常数和矩形截面中无切变的基本气流的简单情况,进行了求解孤波解的一些基本性质,合理地解释了低空急流左侧形成飑线和雷雨群列队的现象. 同时也说明了低空急流上与之相伴随的超地转脉动特征. 在层结和平行气流为空间函数的一般情况下,对于孤波解波幅与斜压-惯性-层结联合稳定度之间关系的定性分析表明,在稳定度下降的地方会有更强的垂直环流在孤波中发展,并有类似暴雨的爆发性特点.
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Computer science
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