Concept
Surface downwelling photon flux in sea water
| URI | http://vocab.nerc.ac.uk/standard_name/surface_downwelling_photon_flux_in_sea_water/ | ||
|---|---|---|---|
| Within Vocab | Climate and Forecast Standard Names | ||
| Definition | The surface called "surface" means the lower boundary of the atmosphere. 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. A photon flux is specified in terms of numbers of photons expressed in moles. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. | ||
| Date | None | ||
| Note | accepted | ||
| modified | 2018-07-03 16:09:23.0 | ||
| Broad Match | P04:G947 |
EARTH SCIENCE > Oceans > Ocean Optics > Irradiance | |
P64:G947 |
EARTH SCIENCE > Oceans > Ocean Optics > Irradiance | ||
| Exact Match | http://mmisw.org/ont/cf/parameter/surface_downwelling_photon_flux_in_sea_water | ||
| http://vocab.nerc.ac.uk/standard_name/surface_downwelling_photon_flux_in_sea_water/ | |||
P07:CFSN0281 |
surface_downwelling_photon_flux_in_sea_water | ||
| Related | P04:G950 |
EARTH SCIENCE > Oceans > Ocean Optics > Photosynthetically Active Radiation | |
P64:G950 |
EARTH SCIENCE > Oceans > Ocean Optics > Photosynthetically Active Radiation | ||
P06:M2MS |
Moles per square metre per second | ||
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