Articles | Volume 15, issue 4
Geosci. Model Dev., 15, 1633–1657, 2022
https://doi.org/10.5194/gmd-15-1633-2022

Special issue: Joint UK Land Environment Simulator (JULES) – configurations,...

Geosci. Model Dev., 15, 1633–1657, 2022
https://doi.org/10.5194/gmd-15-1633-2022
Development and technical paper
25 Feb 2022
Development and technical paper | 25 Feb 2022

A new approach to simulate peat accumulation, degradation and stability in a global land surface scheme (JULES vn5.8_accumulate_soil) for northern and temperate peatlands

Sarah E. Chadburn et al.

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Latest update: 08 Aug 2022
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Short summary
We present a new method to include peatlands in an Earth system model (ESM). Peatlands store huge amounts of carbon that accumulates very slowly but that can be rapidly destabilised, emitting greenhouse gases. Our model captures the dynamic nature of peat by simulating the change in surface height and physical properties of the soil as carbon is added or decomposed. Thus, we model, for the first time in an ESM, peat dynamics and its threshold behaviours that can lead to destabilisation.