Table 1 Visibility levels in China (GBT... | Emerald Publishing

Table 1

Visibility levels in China (GBT 27964–2011)

Visibility	Level
1,000 m ≤ V<10000 m	Light fog
500 m ≤ V<1000 m	Fog
200 m ≤ V<500 m	Strong fog
50 m ≤ V<200 m	Heavy fog
V<50 m	Strong heavy fog