Articles | Volume 18, issue 20
Biogeosciences, 18, 5767–5787, 2021
https://doi.org/10.5194/bg-18-5767-2021
Biogeosciences, 18, 5767–5787, 2021
https://doi.org/10.5194/bg-18-5767-2021

Research article 26 Oct 2021

Research article | 26 Oct 2021

Model simulations of arctic biogeochemistry and permafrost extent are highly sensitive to the implemented snow scheme in LPJ-GUESS

Alexandra Pongracz et al.

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Latest update: 19 Jan 2022
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Short summary
This study shows that the introduction of a multi-layer snow scheme in the LPJ-GUESS DGVM improved simulations of high-latitude soil temperature dynamics and permafrost extent compared to observations. In addition, these improvements led to shifts in carbon fluxes that contrasted within and outside of the permafrost region. Our results show that a realistic snow scheme is essential to accurately simulate snow–soil–vegetation relationships and carbon–climate feedbacks.
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