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

Thum, Tea; Pacheco-Labrador, Javier; Aurela, Mika; Barr, Alan; Honkanen, Marika; Johnson, Bruce; Lindqvist, Hannakaisa; Magney, Troy; Migliavacca, Mirco; Pierrat, Zoe Amie; Quaife, Tristan; Stutz, Jochen; Zaehle, Sönke

doi:10.5194/bg-23-3541-2026

Articles | Volume 23, issue 10

https://doi.org/10.5194/bg-23-3541-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/bg-23-3541-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 23, issue 10

Research article

|

22 May 2026

Research article |

| 22 May 2026

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

Tea Thum, Javier Pacheco-Labrador, Mika Aurela, Alan Barr, Marika Honkanen, Bruce Johnson, Hannakaisa Lindqvist, Troy Magney, Mirco Migliavacca, Zoe Amie Pierrat, Tristan Quaife, Jochen Stutz, and Sönke Zaehle

Supplement

https://doi.org/10.5194/bg-23-3541-2026-supplement

Data sets

In situ observations used in GMD Manuscript ``A comprehensive land surface vegetation model for multi-stream data assimilation, D&B v1.0'' The Inversion Lab https://doi.org/10.5281/zenodo.12725765

Canopy and needle scale fluorescence data from Niwot Ridge, Colorado 2017-2018 (1.2) T. Magney et al. https://doi.org/10.22002/D1.1231

Evergreen needleleaf forest pigment, MONIPAM, eddy-covariance, and tower-scale remote sensing data across four different sites Z. Pierrat https://doi.org/10.5281/zenodo.10048770

Model code and software

L2SM model code version for manuscript T. Quaife https://doi.org/10.5281/zenodo.13753268

QUINCY model S. Zaehle et al. https://doi.org/10.17871/quincy-model-2019

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Short summary

Solar-induced chlorophyll fluorescence (SIF) is an optical signal emitted by plants, connected to the biochemical status of the plants. Therefore it helps to unveil what happens inside plants and since it can be observed with remote sensing, it provides a global view of plant activity. We included SIF module in a terrestrial biosphere model and examined how to best describe movement of the SIF signal in the forest. Our work will help to model SIF in boreal coniferous forests.