主导能见度

时次数

频率

800 < VIS ≤ 1300

8

36.4%

600 < VIS ≤ 800

5

22.7%

400 < VIS ≤ 600

6

27.3%

200 < VIS ≤ 400

1

4.5%

VIS ≤ 200

2

9.1%