Photosynthetic active radiation (growing season, long-term annual mean)
The photosynthetically active radiation (radiation that is in the 400-700 nm waveband and can be used as a source of energy for photosynthesis), averaged over each day in the typical growing season, averaged over all years in the recent climate record.
Also known as: PAR; Photosynthetically active radiation; Photosynthetic Photon Flux Density (PPFD)
- Term type: Measurement
- Units: µmol / m2 / s
Subclass of
References
HESTIA Glossary