Remote Sensing of Photosynthesis with Sun-Induced Chlorophyll Fluorescence and Photochemical Reflectance Index

Dear Colleagues,

Monitoring photosynthetic activity has been one of the key objectives of the next generation of satellite missions. Sun-induced chlorophyll fluorescence (SIF) and photochemical reflectance index (PRI) are two promising avenues for remotely sensing photosynthesis and for advancing our understanding of plant–climate interactions. In the last few decades, progress has been made in measurement techniques, retrieval algorithms, and modeling biochemical and radiative transfer processes related to SIF and PRI. We have successfully linked SIF with gross primary productivity (GPP), and PRI with non-photochemical quenching (NPQ) and, thus, light use efficiency (LUE). However, there are a number of remaining challenges in understanding SIF, PRI, and their relationship with photosynthesis. The purpose of this Special Issue is to report research on the progress of remote sensing of SIF and PRI or their applications to plant physiology monitoring.

We invite research that advances our understanding of the SIF and PRI signals at various scales, and their link with photosynthesis to improve understanding of photosynthesis as well as carbon and water cycles. Articles covering but not limited to the following topics are invited for this Special Issue:

1. Technological developments in the field of remote sensing of SIF and PRI, such as retrieval algorithms and measurement systems for various platforms.
2. Radiative transfer modeling of the reflectance and SIF signals of leaf and canopy.
3. Theoretical and experimental developments on mechanistic upscaling of the relationship between non-photochemical quenching, LUE, and fluorescence.
4. Research applying SIF and/or PRI for a better understanding of photosynthesis and vegetation status.

Prof. Dr. Peiqi Yang
Dr. Xinjie Liu
Guest Editors

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