Meterological Characteristics of Surface Layer during Fog Events in the Urban Area of Tianjin
天津城区大雾过程近地面层特征研究

Based on the observational data obtained from the 250-m meteorological tower in the urban area of Tianjin, together with the conventional observational data, the authors analyzed the structures of the surface layer and the characteristics of the specific humidity distribution in the lower atmosphere layer during fog events, under three different surface pressure patterns (surface inverted trough, topographic trough in North China, and weak surface high pressure pattern)in the winters of 2002, 2003,and 2004....