Assessing methane emissions for northern peatlands in ORCHIDEE-PEAT revision 7020

Salmon, Elodie; Jégou, Fabrice; Guenet, Bertrand; Jourdain, Line; Qiu, Chunjing; Bastrikov, Vladislav; Guimbaud, Christophe; Zhu, Dan; Ciais, Philippe; Peylin, Philippe; Gogo, Sébastien; Laggoun-Défarge, Fatima; Aurela, Mika; Bret-Harte, M. Syndonia; Chen, Jiquan; Chojnicki, Bogdan H.; Chu, Housen; Edgar, Colin W.; Euskirchen, Eugenie S.; Flanagan, Lawrence B.; Fortuniak, Krzysztof; Holl, David; Klatt, Janina; Kolle, Olaf; Kowalska, Natalia; Kutzbach, Lars; Lohila, Annalea; Merbold, Lutz; Pawlak, Włodzimierz; Sachs, Torsten; Ziemblińska, Klaudia

doi:https://doi.org/10.5194/gmd-15-2813-2022

Articles | Volume 15, issue 7

Geosci. Model Dev., 15, 2813–2838, 2022

https://doi.org/10.5194/gmd-15-2813-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Geosci. Model Dev., 15, 2813–2838, 2022

https://doi.org/10.5194/gmd-15-2813-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 15, issue 7

Model evaluation paper

06 Apr 2022

Model evaluation paper | 06 Apr 2022

Assessing methane emissions for northern peatlands in ORCHIDEE-PEAT revision 7020

Elodie Salmon et al.

Supplement

https://doi.org/10.5194/gmd-15-2813-2022-supplement

Data sets

Documentation du SI SNO-Tourbières (SNO-T) Doc SNO-T https://sourcesup.renater.fr/www/si-snot/

Sites list European Fluxes Database Cluster http://www.europe-fluxdata.eu/home/sites-list

FLUXNET ORNL DAAC http://fluxnet.ornl.gov/

Model code and software

ORCHIDEE_MICT-PEAT-CH4 r 7020 E. Salmon https://doi.org/10.14768/d385219a-787a-439c-b128-2e2d30a21f87

ORCHIDEE Data Assimilation Systems V. Bastrikov https://orchidas.lsce.ipsl.fr

Short summary

A methane model that features methane production and transport by plants, the ebullition process and diffusion in soil, oxidation to CO₂, and CH₄ fluxes to the atmosphere has been embedded in the ORCHIDEE-PEAT land surface model, which includes an explicit representation of northern peatlands. This model, ORCHIDEE-PCH4, was calibrated and evaluated on 14 peatland sites. Results show that the model is sensitive to temperature and substrate availability over the top 75 cm of soil depth.