绝热大气过程的若干性质

被引:9
作者
高丽 [1 ]
李建平 [1 ]
任宏利 [2 ]
机构
[1] 中国科学院大气物理研究所LASG
[2] 兰州大学大气科学学院
基金
国家杰出青年科学基金;
关键词
有效位能; 绝热; 等熵面; 大气参考状态; 条件最小全位能;
D O I
暂无
中图分类号
P401 [大气物理学];
学科分类号
070602 ;
摘要
研究了绝热大气过程的若干重要性质,论证了绝热情形下大气熵范围的不变性和表面位温的局地不变性,在此基础上进一步探讨了当等熵面与地面相交时等熵面上以及等熵面与地面之间大气质量的守恒性.分析表明:在大气有效位能研究中,客观定义的大气参考状态应当是实际大气经过绝热调整后所能够达到的状态,是与调整前大气状态有关的,不同时刻的实际大气对应的参考状态应是不同的,而Lorenz所定义的大气参考状态是绝热调整无法达到的;进而提出了利用条件最小全位能的新概念来研究大气有效位能.
引用
收藏
页码:243 / 247
页数:5
相关论文
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