不同路径冷空气导致的宁夏沙尘重污染天气特征及传输规律

袁瑞瑞, 王建英, 张卫红, 张肃诏, 王坤, 雍佳

Characteristics of heavy dust pollution weather coused by cold air with different routes in Ningxia， China

Ruirui Yuan, Jianying Wang, Weihong Zhang, Suzhao Zhang, Kun Wang, Jia Yong

图2 2018—2021年宁夏五地市沙尘重污染日数

Fig.2 Distribution of heavy dust pollution days in Ningxia from 2018 to 2021