Concept
area_fraction_of_night_defined_by_solar_zenith_angle
| URI | http://vocab.nerc.ac.uk/collection/P07/current/UA5EK79W/3/ | ||
|---|---|---|---|
| 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, 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. A coordinate variable of solar_zenith_angle indicating the day extent should be specified. Solar zenith angle is the the angle between the line of sight to the sun and the local vertical. | ||
| Date | 2024-09-04T12:51:23 | ||
| Identifier | SDN:P07::UA5EK79W | ||
| Note | accepted | ||
| Is Version Of | UA5EK79W | ||
| Previous Version | 1 , 2 | ||
| version | 3 | ||
| Same As | MMI | http://mmisw.org/ont/cf/parameter/area_fraction_of_night_defined_by_solar_zenith_angle | |
| CF | http://vocab.nerc.ac.uk/standard_name/area_fraction_of_night_defined_by_solar_zenith_angle/ | ||
| Related | P06:UUUU |
Dimensionless | |
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