fog_area_fraction

https://w3id.org/hacid/data/cs/variables/cf/fog_area_fraction <https://w3id.org/hacid/onto/data/Variable>

"Area fraction" is the fraction of a grid cell's horizontal area that has some characteristic of interest. It is evaluated as the area of interest divided by the grid cell area, or if the cell_methods restricts the evaluation to some portion of that grid cell (e.g. "where sea_ice"), then it is the area of interest divided by the area of the identified portion. It may be expressed as a fraction, a percentage, or any other dimensionless representation of a fraction. Fog means water droplets or minute ice crystals close to the surface which reduce visibility in air to less than 1000m. rdf:langString
rdf:langString fog_area_fraction 

data from the linked data cloud