Using space-based chlorophyll fluorescence and CO2 observations to constrain primary production and respiration about the boreal ecosystems
Sun-induced chlorophyll fluorescence (SIF), radiation emitted by vegetation during photosynthesis, has long been known to be a good proxy for primary productivity. However, only within the last few years have high-resolution space-based spectrometers allowed global observations of SIF. In this talk, I will examine how SIF observations from the GOME-2 satellite compare with primary productivity estimates from terrestrial ecosystem models. I will then introduce a method to combine space-based SIF observations with atmospheric CO2 observations to constrain both primary productivity and respiration in boreal terrestrial ecosystems.