User:FAPARCHL/sandbox

The fractional Absorption of Photosynthetically Active Radiation by canopy chlorophyll (fAPARchl, sometimes also noted fPARchl) is the fraction of the incoming Photosynthetically Active Radiation (PAR) absorbed by canopy chlorophyll that is associated with the plant photosynthesis process. The fractional Absorption of Photosynthetically Active Radiation by canopy non-chlorophyll components (fAPARnon-chl, sometimes also noted fPARnon-chl) is the fraction of the incoming Photosynthetically Active Radiation (PAR) absorbed by canopy non-chlorophyll components that is not used for plant photosynthesis. The fAPARchl is directly related to vegetation gross primary productivity (GPP) or photosynthesis. It can be utilized in models to estimate vegetation assimilation rate of carbon dioxide.

The coupled Leaf-Vegetation-Soil-Snow-Surface water radiative transfer model (LVS3) used to retrieve fAPARchl and fAPARnon-chl has been published.