摘要
文中根据线性化的大气方程组求得了城市热岛环流的理论模式。利用此模式分析了温度场和流场的三维结构，并和观测结果做了对比。在解析解中，研究了大气条件诸如风速、湍流扩散系数、Ragleigh摩擦以及层结的影响，同时讨论了重力波对温度分布垂直结构的效应。
The linearized atmospheric equation system is solved analytically to obtain a theoretical model of the urban heat island circulation. In the model the three-dimensio-nal structure of temperature and flow fields in the circulation are analysed and compared with the observations. The influences of the atmospheric conditions, such as wind speed, eddy diffusivity, Rayleigh friction as well as stratification are investigated analytically. In addition, the effects of gravity waves on the vertical structure of the temperature distribution are also discussed.
出处
《气象学报》
CSCD
北大核心
2000年第3期321-327,共7页
Acta Meteorologica Sinica
基金
国家自然科学基金
关键词
热岛
温度交叉
重力波
辐合中心
动力学
Heat island, Temperature cross-over, Gravity waves, Convergence center
