摘要
本文采用二维非定常数值模式,模拟了大气边界层内辐射雾、平流辐射雾和在海陆交界处的平流辐射雾的形成、演变规律。研究了雾发展过程中湍流-辐射作用及风场、水汽平流和海陆风环流对雾发展影响的特点。模拟计算结果得出湍流-辐射作用是雾发展变化的主要物理因子。大气边界层风场及风场环流和水汽的平流输送对在不同地点,时刻雾的发展和强度变化也有重要的影响。
A two dimentional, time- depending model has been developed to simulate the formation, evolution and dissipation of advection-radiation fogs in the atmospheric boundary layer. Turbulence, radiation and advection are included in the model.The result shows that turbulence and radiation are important physical factors in the process of evolution and variation of fogs. The distribution and circulation of wind field in the atmospheric boundary layer, the advection transport of water vapour also have important influence on the above process.
出处
《大气科学》
CSCD
北大核心
1991年第6期99-109,共11页
Chinese Journal of Atmospheric Sciences
关键词
雾
平流雾
辐射雾
数值模拟
Radiation fog
Advection fog
Numerical simulation.
