Concept
surface_upwelling_photosynthetic_photon_flux_in_air
| URI | http://vocab.nerc.ac.uk/collection/P07/current/CFSN0211/ | ||
|---|---|---|---|
| Within Vocab | Climate and Forecast Standard Names | ||
| Alternative Labels | |||
| Definition | The surface called "surface" means the lower boundary of the atmosphere. Upwelling radiation is radiation from below. It does not mean "net upward". The sign convention is that "upwelling" is positive upwards and "downwelling" is positive downwards. "Photosynthetic" radiation is the part of the spectrum which is used in photosynthesis e.g. 400-700 nm. The range of wavelengths could be specified precisely by the bounds of a coordinate of radiation_wavelength. 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 | 2018-07-03T16:09:23 | ||
| Identifier | SDN:P07::CFSN0211 | ||
| Note | accepted | ||
| Has Current Version | 3 | ||
| Version | 1 , 2 | ||
| version | 3 | ||
| Same As | MMI | http://mmisw.org/ont/cf/parameter/surface_upwelling_photosynthetic_photon_flux_in_air | Mapping: 258742 |
| CF | http://vocab.nerc.ac.uk/standard_name/surface_upwelling_photosynthetic_photon_flux_in_air/ | Mapping: 351695 | |
| Broader | P02:VSRA |
Visible waveband radiance and irradiance measurements in the atmosphere | Mapping: 32841 |
| P04 Global Change Master Directory Science Keywords V5 - (2) | |||
| P64 Global Change Master Directory Science Keywords V6 - (2) | |||
| Related | P06:M2MS |
Moles per square metre per second | Mapping: 161666 |
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