Concept
cloud_area_fraction_in_atmosphere_layer
| URI | http://vocab.nerc.ac.uk/collection/P07/current/CFSN0746/2/ | |
|---|---|---|
| Within Vocab | Climate and Forecast Standard Names | |
| Alternative Labels | ||
| Definition | "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. It may be expressed as a fraction, a percentage, or any other dimensionless representation of a fraction. "Layer" means any layer with upper and lower boundaries that have constant values in some vertical coordinate. There must be a vertical coordinate variable indicating the extent of the layer(s). If the layers are model layers, the vertical coordinate can be model_level_number, but it is recommended to specify a physical coordinate (in a scalar or auxiliary coordinate variable) as well. Standard names referring only to "cloud_area_fraction" should be used for quantities for the whole atmosphere column. Standard names also exist for high, medium and low cloud types. Cloud area fraction is also called "cloud amount" and "cloud cover". | |
| Date | None | |
| Identifier | CFSN0746 | |
| Note | accepted | |
| Is Version Of | CFSN0746 | |
| version | 2 | |
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