Concept
surface_direct_downwelling_shortwave_flux_in_air
| URI | http://vocab.nerc.ac.uk/collection/P07/current/D6W2P30Q/1/ | |
|---|---|---|
| Within Vocab | Climate and Forecast Standard Names | |
| Alternative Labels | ||
| Definition | Downwelling radiation is radiation from above. It does not mean "net downward". "Direct" (also known as "beam") radiation is radiation that has followed a direct path from the sun and is alternatively known as "direct insolation". 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. The surface called "surface" means the lower boundary of the atmosphere. "shortwave" means shortwave radiation. | |
| Date | None | |
| Identifier | D6W2P30Q | |
| Note | accepted | |
| Is Version Of | D6W2P30Q | |
| version | 1 | |
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