中国北方20213月中旬持续性沙尘天气的特征及其成因
杨晓军, 张强, 叶培龙, 秦豪君, 徐丽丽, 马莉, 巩崇水

Characteristics and causes of persistent sand-dust weather in mid-March 2021 over Northern China
Xiaojun Yang, Qiang Zhang, Peilong Ye, Haojun Qin, Lili Xu, Li Ma, Chongshui Gong
图3 能见度(A)和PM10质量浓度(B)时间变化
Fig.3 The time change of visibility (A) and PM10 mass concentration (B)