Concept
Downwelling photon spherical irradiance in sea water
| URI | http://vocab.nerc.ac.uk/standard_name/downwelling_photon_spherical_irradiance_in_sea_water/ | ||
|---|---|---|---|
| Within Vocab | Climate and Forecast Standard Names | ||
| 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. Photon spherical irradiance is the photon flux incident on unit area of a hemispherical (or "2-pi") collector. Radiation incident on a 4-pi collector has a standard name referring to "omnidirectional spherical irradiance". A photon flux is specified in terms of numbers of photons expressed in moles. | ||
| 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 | ||
P02:VSRW |
Visible waveband radiance and irradiance measurements in the water column | ||
| Exact Match | http://mmisw.org/ont/cf/parameter/downwelling_photon_spherical_irradiance_in_sea_water | ||
| http://vocab.nerc.ac.uk/standard_name/downwelling_photon_spherical_irradiance_in_sea_water/ | |||
P07:CFSN0675 |
downwelling_photon_spherical_irradiance_in_sea_water | ||
| Related | P06:M2MS |
Moles per square metre per second | |
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