摘要
本文用二维数值模式模拟了谷地白天边界层的发展过程.通过求解大气动力.热力学方程组.模拟出了谷地上空的温度场、流场以及在两种不同层结条件下的湍流动能q^2的分布特征.从而对白天谷地上稳定层结(或逆温层)的生消机制进行了初步探讨.模拟出的温度分布廓线等与有关实测资料基本一致.
In the present paper, a two-dimensional numerical simulation is carried out to study the evolution of the elevated inversion over a narrow valley. In the simulation the spatial distribution and temporal variation of the flow , temperature and the turbulent energy fields over the valley are obtained numerically. The mechanism of the formation and dissipation of an elevated stable layer (or inversion layer ) is also discussed. The main characteritics of temperature structure simulated are in agreement with the observations.
出处
《大气科学》
CSCD
北大核心
1993年第2期227-238,共12页
Chinese Journal of Atmospheric Sciences
关键词
谷地
逆温层
数值模拟
温度
Valley
Inversion
Numerical simulation.