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  • Presentation | B41K: Sun-Induced Chlorophyll Fluorescence: Measurements, Modeling, and Applications from Field, Airborne, and Satellite Platforms I Poster
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  • B41K-1980: Advances in Sun-Induced Chlorophyll Fluorescence Detection with GOSAT, GOSAT-2 and MicroCarb satellites
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Author(s):
Michael Cartwright, University of Leicester (First Author, Presenting Author)
Robert Parker, University of Leicester
Dan Orr, University of Leicester
Peter Somkuti, NASA Goddard Space Flight Center
Sukun Cheng, University of Reading
Keith Haines, National Centre for Earth Observation
Tristan Quaife, University of Reading
Samantha Petch, University of Reading
Alex Webb, NASA Goddard Space Flight Center
Antonio Di Noia, University of Rome Tor Vergata
Hartmut Boesch, University of Bremen


Sun-induced (solar-induced) chlorophyll fluorescence (SIF) is a characteristic of plants whereby they emit infrared radiation as a by-product of the photosynthesis process. This signal can be measured by satellites orbiting Earth at the top of the atmosphere. By measuring this we can gain information about the behaviour of vegetation at the surface, in terms of how much carbon dioxide they are consuming and storing, as well as the health and state of the plants. Additionally, it is important for use in the measurement of atmospheric components, such as carbon dioxide concentration.


We present our work on new retrievals of SIF from the GOSAT-2 satellite, launched in 2018. As well as a summary and evaluation of the ongoing development of our in-house GOSAT-SIF product. Further, we show some work in applying these data to better understanding how photosynthesis is modulated by water storage on land and this influence the growth of carbon in the atmosphere.


Finally, MicroCarb is a joint mission between the UK and French space agencies to improve global capability in quantifying atmospheric carbon dioxide, launched in July 2025. The University of Leicester have developed an operational SIF product, that we demonstrate here with simulations.




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