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2 连霍高速陕西段不同等级低能见度出现时次及占比（a）与最小能见度（b）日变化和不同持续时间低能见度出现次数占比（c）

Fig.2 The diurnal variations of occurring times and proportion of low visibility with different levels （a） and minimum visibility （b） and the proportion of occurring times of low visibility with different durations （c） along Shaanxi section of the Lian-Huo expressway