Concept
downwelling_shortwave_flux_in_air_assuming_clear_sky
| URI | http://vocab.nerc.ac.uk/collection/P07/current/CFV13N8/2/ | ||
|---|---|---|---|
| Within Vocab | Climate and Forecast Standard Names | ||
| Alternative Labels | |||
| Definition | Downwelling radiation is radiation from above. It does not mean "net downward". The sign convention is that "upwelling" is positive upwards and "downwelling" is positive downwards. The term "shortwave" means shortwave radiation. When thought of as being incident on a surface, a radiative flux is sometimes called "irradiance". In addition, it is identical with the quantity measured by a cosine-collector light-meter and sometimes called "vector irradiance". In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. A phrase assuming_condition indicates that the named quantity is the value which would obtain if all aspects of the system were unaltered except for the assumption of the circumstances specified by the condition. "Clear sky" means in the absence of clouds. | ||
| Date | 2018-07-03T16:09:23 | ||
| Identifier | SDN:P07::CFV13N8 | ||
| Note | accepted | ||
| Is Version Of | CFV13N8 | ||
| Previous Version | 1 | ||
| version | 2 | ||
| Same As | MMI | http://mmisw.org/ont/cf/parameter/downwelling_shortwave_flux_in_air_assuming_clear_sky | |
| CF | http://vocab.nerc.ac.uk/standard_name/downwelling_shortwave_flux_in_air_assuming_clear_sky/ | ||
| Broader | P02:VSRA |
Visible waveband radiance and irradiance measurements in the atmosphere | |
| Related | P06:UFAA |
Watts per square metre | |
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