Representation of Leaf-to-Canopy Radiative Transfer Processes Improves Simulation of Far-Red Solar-Induced Chlorophyll Fluorescence in the Community Land Model Version 5
Abstract
Recent advances in satellite observations of solar-induced chlorophyll fluorescence (SIF) provide a new opportunity to evaluate and constrain the simulation of terrestrial gross primary productivity (GPP). Accurate representation of the processes driving SIF emission and the radiative transfer of SIF to remote sensing sensors is an essential prerequisite for the evaluation and data assimilation. Recently, SIF simulations have been incorporated into several land surface models, but the scaling of SIF from leaf-level to canopy level is usually not well-represented. In this work, we incorporate the simulation of far-red SIF observed at nadir into the Community Land Model version 5 (CLM5). An efficient and accurate method based on escape probability is developed to scale SIF from leaf-level to top-of-canopy while taking clumping and the radiative transfer processes into account. SIF simulated by CLM5 and a canopy-level model agreed well at sites except one in needle leaf forest (R2>0.91, root-mean-square error < 0.19W m-2 sr-1 um-1), and captured the day-to-day variation of tower-measured SIF at temperate forest sites (R2 >0.68). At the global scale, simulated SIF generally captured the spatial and seasonal pat37 terns of satellite-observed SIF (R2 > 0.76 except for tropical forest). Factors including the fluorescence emission model, clumping, bidirectionalmore »
- Authors:
-
- Univ. of Virginia, Charlottesville, VA (United States)
- National Center for Atmospheric Research (NCAR), Boulder, CO (United States). Climate and Global Dynamics Lab.
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- California Institute of Technology (CalTech), Pasadena, CA (United States); California Institute of Technology (CalTech), Pasadena, CA (United States). Jet Propulsion Lab. (JPL)
- California Institute of Technology (CalTech), Pasadena, CA (United States). Jet Propulsion Lab. (JPL)
- California Institute of Technology (CalTech), Pasadena, CA (United States)
- Univ. of Virginia, Charlottesville, VA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Univ. of Illinois at Urbana-Champaign, IL (United States); Univ. of Illinois at Urbana-Champaign, IL (United States). National Center of Supercomputing Applications; Univ. of Illinois at Urbana-Champaign, IL (United States). Institute for Sustainability, Energy, and Environment (iSEE), Agroecosystem Sustainability Center
- Publication Date:
- Research Org.:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC); National Aeronautics and Space Administration (NASA); National Science Foundation (NSF)
- OSTI Identifier:
- 1856240
- Report Number(s):
- PNNL-SA-165355
Journal ID: ISSN 1942-2466
- Grant/Contract Number:
- AC05-76RL01830; 80NSSC17K0110; 2005574; 2023205; AC02-05CH11231; DEB-1832210)
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Advances in Modeling Earth Systems
- Additional Journal Information:
- Journal Volume: 14; Journal Issue: 3; Journal ID: ISSN 1942-2466
- Publisher:
- American Geophysical Union (AGU)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 59 BASIC BIOLOGICAL SCIENCES; solar-induced chlorophyll fluorescence; land surface model; Community Land Model; gross primary productivity; radiative transfer; escape probability
Citation Formats
Li, Rong, Lombardozzi, Danica, Shi, Mingjie, Frankenberg, Christian, Parazoo, Nicholas C., Köhler, Philipp, Yi, Koong, Guan, Kaiyu, and Yang, Xi. Representation of Leaf-to-Canopy Radiative Transfer Processes Improves Simulation of Far-Red Solar-Induced Chlorophyll Fluorescence in the Community Land Model Version 5. United States: N. p., 2022.
Web. doi:10.1029/2021ms002747.
Li, Rong, Lombardozzi, Danica, Shi, Mingjie, Frankenberg, Christian, Parazoo, Nicholas C., Köhler, Philipp, Yi, Koong, Guan, Kaiyu, & Yang, Xi. Representation of Leaf-to-Canopy Radiative Transfer Processes Improves Simulation of Far-Red Solar-Induced Chlorophyll Fluorescence in the Community Land Model Version 5. United States. https://doi.org/10.1029/2021ms002747
Li, Rong, Lombardozzi, Danica, Shi, Mingjie, Frankenberg, Christian, Parazoo, Nicholas C., Köhler, Philipp, Yi, Koong, Guan, Kaiyu, and Yang, Xi. Sun .
"Representation of Leaf-to-Canopy Radiative Transfer Processes Improves Simulation of Far-Red Solar-Induced Chlorophyll Fluorescence in the Community Land Model Version 5". United States. https://doi.org/10.1029/2021ms002747. https://www.osti.gov/servlets/purl/1856240.
@article{osti_1856240,
title = {Representation of Leaf-to-Canopy Radiative Transfer Processes Improves Simulation of Far-Red Solar-Induced Chlorophyll Fluorescence in the Community Land Model Version 5},
author = {Li, Rong and Lombardozzi, Danica and Shi, Mingjie and Frankenberg, Christian and Parazoo, Nicholas C. and Köhler, Philipp and Yi, Koong and Guan, Kaiyu and Yang, Xi},
abstractNote = {Recent advances in satellite observations of solar-induced chlorophyll fluorescence (SIF) provide a new opportunity to evaluate and constrain the simulation of terrestrial gross primary productivity (GPP). Accurate representation of the processes driving SIF emission and the radiative transfer of SIF to remote sensing sensors is an essential prerequisite for the evaluation and data assimilation. Recently, SIF simulations have been incorporated into several land surface models, but the scaling of SIF from leaf-level to canopy level is usually not well-represented. In this work, we incorporate the simulation of far-red SIF observed at nadir into the Community Land Model version 5 (CLM5). An efficient and accurate method based on escape probability is developed to scale SIF from leaf-level to top-of-canopy while taking clumping and the radiative transfer processes into account. SIF simulated by CLM5 and a canopy-level model agreed well at sites except one in needle leaf forest (R2>0.91, root-mean-square error < 0.19W m-2 sr-1 um-1), and captured the day-to-day variation of tower-measured SIF at temperate forest sites (R2 >0.68). At the global scale, simulated SIF generally captured the spatial and seasonal pat37 terns of satellite-observed SIF (R2 > 0.76 except for tropical forest). Factors including the fluorescence emission model, clumping, bidirectional effect, and canopy properties (leaf optical properties and leaf area index) had considerable impacts on SIF simulation, and the discrepancies between simulated and observed SIF varied with plant functional type. By improving the representation of radiative transfer for SIF simulation, our model allows better comparisons between simulated and observed SIF towards constraining and evaluating GPP simulations.},
doi = {10.1029/2021ms002747},
journal = {Journal of Advances in Modeling Earth Systems},
number = 3,
volume = 14,
place = {United States},
year = {Sun Mar 20 00:00:00 EDT 2022},
month = {Sun Mar 20 00:00:00 EDT 2022}
}
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