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Abstract Recent advances in remote sensing of solar‐induced chlorophyll fluorescence (SIF) have garnered wide interest from the biogeoscience and Earth system science communities, due to the observed linearity between SIF and gross primary productivity (GPP) at increasing spatiotemporal scales. Three recent studies, Maguire et al., (2020,https://doi.org/10.1029/2020GL087858), He et al. (2020,https://doi.org/10.1029/2020GL087474), and Marrs et al. (2020,https://doi.org/10.1029/2020GL087956) highlight a nonlinear relationship between fluorescence and photochemical yields and show empirical evidence for the decoupling of SIF, stomata, and the carbon reactions of photosynthesis. Such mechanistic studies help advance our understanding of what SIF is and what it is not. We argue that these findings are not necessarily contradictory to the linear SIF‐GPP relationship observed at the satellite scale and provide context for where, when, and why fluorescence and photosynthesis diverge at smaller spatiotemporal scales. Understanding scale dependencies of remote sensing data is crucial for interpreting SIF as a proxy for GPP.
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Fluorescence based measurements of phytoplankton in Deming Lake, MN (2023-2024)
Gross primary productivity, chlorophyll, and quantum yield of photosynthesis data among phytoplankton in Deming Lake, Minnesota from 2023 - 2024. The PhytoPAM II (Walz) was used for all measurements. The data is comprised of taxa-specific gross primary productivity (GPP), chlorophyll, rapid light curves (RLCs), andquantum yields of photosynthesis across depths including the SCML and O2 max. This dataset contains two .csv files and a .zip folder with additional exported .csv files from the PhytoPAM II.
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- Award ID(s):
- 1944946
- PAR ID:
- 10589038
- Publisher / Repository:
- Iowa State University
- Date Published:
- Subject(s) / Keyword(s):
- Microbial ecology
- Format(s):
- Medium: X Size: 118356 Bytes
- Size(s):
- 118356 Bytes
- Right(s):
- Creative Commons Attribution 4.0 International
- Sponsoring Org:
- National Science Foundation
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