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Towards Better Remote Sensing of Terrestrial Vegetation Photosynthesis

Quantifying global terrestrial vegetation photosynthesis is essential for understanding the global carbon cycle, and the associated water, energy cycles, as well as the climate dynamics. Satellite remote sensing has been used as a key approach in advancing our understanding and ability of quantifying photosynthesis from leaf to global scales. However, there remain substantial uncertainties in quantification of ecosystem photosynthesis. This seminar will summarize our recent and on-going work related to improving remote sensing of terrestrial photosynthesis, including remote sensing of Solar-Induced Fluorescence (SIF), improvement of estimation of land surface solar radiation with the unique DSCOVR-EPIC satellite observations, and radiative transfer modeling from leaf-canopy scales in a unified spectral invariant theory framework. This work also has big potential to be integrated into Earth system models for better simulations of the land-atmosphere interactions and the climate system.