连霍高速公路陕西段低能见度特征及影响因素
张宏芳, 张曦, 梁佳, 郭琦, 王靖中

Characteristics and influence factors of low visibility along Shaanxi section of the Lian-Huo expressway
ZHANG Hongfang, ZHANG Xi, LIANG Jia, GUO Qi, WANG Jingzhong
图8 2020年1月24日20:00地面风场(矢量,单位:m·s-1)、相对湿度(填色区,单位:%)、散度场(蓝色线条,单位:10-5 s-1)(a)和850 hPa高度场(蓝色线条,单位:dagpm)、风场(矢量,单位:m·s-1)、比湿(填色区,单位:g·kg-1)(b)及24日18:00至25日17:00武功站能见度与气温、最大风速、相对湿度逐时演变(c)
(红色线所围区域为陕西省)
Fig.8 The surface wind field (vectors, Unit: m·s-1), relative humidity (color filled areas, Unit: %), convergence field (blue lines, Unit: 10-5 s-1)(a) and 850 hPa geopotential height field (blue lines, Unit: dagpm), wind field (vectors,Unit: m·s-1), specific humidity (color filled areas, Unit: g·kg-1)(b) at 20:00 24 January 2020, and the hourly evolution of visibility,air temperature, maximum wind speed and relative humidity at Wugong station from 18:00 24 to 17:00 25 January 2020
(the area enclosed by red line for the Shaanxi Province)