大气科学2009，Vol.33Issue(6)：1174-1186,13.
北京一次大雾天气边界层结构特征及生消机理观测与数值模拟研究
Observation and Simulation Study of the Boundary Layer Structure and the Formation, Dispersal Mechanism of a Heavy Fog Event in Beijing Area
摘要
Abstract
On the basis of Analysis of the synoptic situation and the visibility for the heavy fog event on 26 October 2007 in Beijing area, comparative analysis of the fog area, the boundary layer distribution characteristics of the tem-perature, humidity, wind speed, and liquid water content (LWC) is conducted with the observation data of the radi-ometer, wind profiler, satellite, and the simulation results. In addition, the mechanism of the fog formation, main-tenance and dispersal is analyzed with the simulation results of a mesoscale model The results indicate that the long-wave radiation cooling is the important factor of the fog formation in addition to the steady atmospheric stratification and plenty of moisture, while the fog dispersal was most influenced by the shortwave radiation.关键词
北京大雾/微波辐射计/数值模拟/垂直结构/机理Key words
heavy fog, radiometer, numerical simulation, vertical structure, mechanism分类
天文与地球科学引用本文复制引用
何晖,郭学良,刘建忠,金华,娄淑娟..北京一次大雾天气边界层结构特征及生消机理观测与数值模拟研究[J].大气科学,2009,33(6):1174-1186,13.基金项目
国家"十一五"科技攻关项目2006BAC12B04,公益性行业科研专项GYHY200806001-1 （）
