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May 24, 2026BiogeosciencesOpen Access

Using different radiative transfer schemes for solar-induced chlorophyll fluorescence (SIF) in evergreen coniferous forests with a terrestrial biosphere model

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Authors

TTTea ThumJPJavier Pacheco-LabradorMAMika Aurela

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Overview

Randomized trial evaluates solar-induced chlorophyll fluorescence in boreal forests, highlighting its connection to carbon cycling.

Key Points

  • This study aims to improve the modeling of solar-induced chlorophyll fluorescence (SIF) to enhance understanding of photosynthesis processes in coniferous forests.
  • Implemented SIF emission and transmission in the QUINCY model.
  • Tested across three boreal coniferous forest sites with CO2 flux and SIF data.
  • Compared various radiative transfer models: mSCOPE, L2SM, and an empirical approach.
  • All radiative transfer models overestimated SIF signals, but did not differ significantly in timing predictions.
  • The L2SM model showed stable performance and computational efficiency.
  • Different parameterizations of non-photochemical quenching affected SIF cycle predictions at various sites due to temperature differences.

Cite This Study

Thum et al. (2026) studied this question.

synapsesocial.com/papers/6a12969048a0ea16656737c4https://doi.org/10.5194/bg-23-3541-2026
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