2021年3月中国北方两次强沙尘天气污染特征
涂爱琴, 王珍珠, 朱庚华, 王治非, 张海, 张帅, 刘东, 翁宁泉

Pollution characteristics of two strong dust processes in northern China in March 2021
TU Aiqin, WANG Zhenzhu, ZHU Genghua, WANG Zhifei, ZHANG Hai, ZHANG Shuai, LIU Dong, WENG Ningquan
图11 “3·15”(a、c)和“3·27”(b、d)强沙尘过程济南与石家庄195 m高度退偏比(a、b)与消光系数(c、d)随时间变化
Fig.11 The temporal variation of depolarization ratio (a, b) and extinction coefficient (c, d) at 195 m height over Jinan and Shijiazhuang during the strong dust processes from 14 to 19 March (a, c) and from 27 March to 2 April (b, d),2021