摘要
利用复杂地形上的三维雾模式研究了重庆市冬季局地环流的形成、演变过程及其主要特征。结果表明，重庆市冬季夜间四周山区有下坡冷空气向市中区汇集，中午前后逐渐向谷风环流转变。这种局地环流结构对重庆雾的生消起着重要作用。并就成雾、山脉、初始大气稳定度等因子对局地环流的影响进行了数值试验。
A 3D fog model was applied to investigate the genesis, development and major features of wintertime local circulation over Chongqing surrounded by mountains. Evidence suggests that downslope cold air pools the center of the city at nocturnal hours, changing to a valley wind circulation around the noon. The circulation structure plays an important role in the genesis/dispersal of fog typical of the city. A numerical experiment was excuted concerning the impact of the circulation of fog, mountains and initial stability of the atmosphere.
出处
《南京气象学院学报》
CSCD
1996年第3期320-328,共9页
Journal of Nanjing Institute of Meteorology
基金
中国科学院大气物理研究所LAPC和中国气象局气象基金
关键词
复杂地形
局地环流
模拟研究
大气环流
complicated terrain, local circulation, Chongqing, 3D model
