Simulating high-latitude permafrost regions by the JSBACH terrestrial ecosystem model
- 1Department of Biogeochemical Integration, Max Planck Institute for Biogeochemistry, Jena, Germany
- 2Department of Geosciences, University of Fribourg, Fribourg, Switzerland
- 3Department of Applied Environmental Science (ITM) and Bolin Centre for Climate Research, Stockholm University, Stockholm, Sweden
- 4Department of Land in the Earth System, Max Planck Institute for Meteorology, Hamburg, Germany
- 5Alfred Wegener Institute for Polar and Marine Research, Potsdam, Germany
Abstract. The current version of JSBACH incorporates phenomena specific to high latitudes: freeze/thaw processes, coupling thermal and hydrological processes in a layered soil scheme, defining a multilayer snow representation and an insulating moss cover. Evaluations using comprehensive Arctic data sets show comparable results at the site, basin, continental and circumarctic scales. Such comparisons highlight the need to include processes relevant to high-latitude systems in order to capture the dynamics, and therefore realistically predict the evolution of this climatically critical biome.