北京地区能见度变化特征及其临近外推预报研究
姜江, 夏江江, 刘祺, 乔媛

Visibility variation characteristics and its nowcasting extrapolation in Beijing
JIANG Jiang, XIA Jiangjiang, LIU Qi, QIAO Yuan
图4 2016—2022年北京24站年平均能见度(a,单位:km)及变化趋势(b,单位:m·a-1
Fig.4 The mean visibility (a, Unit: km) and their change trends (b, Unit: m·a-1) of 24 stations in Beijing from 2016 to 2022