4:00 PM - 4:30 PM
[AAS04-13] Remote sensing of carbon assimilation function of terrestrial ecosystem by Earth-observation satellite
Keywords:vegetation remote sensing, solar-induced chlorophyll fluorescence, GOSAT
Satellite remote sensing has been used to monitor the spatial and temporal dynamics of terrestrial ecosystems that are responsible for such photosynthetic CO2 absorption. Such observation provides us with geographical information on the potential distribution of carbon sequestration by the aid of ecosystem models. In these years, advent of the spectroradiometer, which has high wavelength resolution, such as TANSO FTS on Greenhouse Gases Observing Satellite (GOSAT) enable us to observe solar-induced chlorophyll fluorescence (SIF) emitted from the terrestrial ecosystems. Since the chlorophyll fluorescence is emitted from photosynthetic process itself, SIF remote sensing is drawn considerable attention as a new technique to observe the photosynthetic activity of the vegetation. SIF has been measured by gas-measurement satellites, such as GOSAT, GOSAT-2, OCO-2 and GOME2 on MetOp A and B.
In this talk, we will introduce our previous and on-going studies about estimation of photosynthetic production of the terrestrial ecosystem. We also discuss about future perspective about SIF studies in GOSAT and GOSAT-2 projects.