GHG-modelling: Process-based modelling

Here are some of the process-based models used in the Greenhouse gas modelling group:

JSBACH

For our forward modeling studies on carbon dioxide, methane and water cycles, we have used the Max Planck Institute Earth System Model (MPI-ESM) model family, especially the MPI-ESM land surface component JSBACH. JSBACH was developed in the Max-Planck Institute for Meteorology, Hamburg, Germany.

In other words, JSBACH is a land surface model that simulates exchanges of matter and energy between the surface and the atmosphere. It uses meteorological forcing data and the domain size can be from global to a point. In our group, it is used in various contexts: to study carbon balances of urban green spaces, to simulate forest fires in Fennoscandia, afforested wasteland and various forest managements and to model drained and undrained peatland, including studies on soil carbon accumulation and hydrology. This model provides simulations of carbon and energy balances, which can be driven by different management and climate scenarios.

LDNDC

Landscape DeNitrification-DeComposition (LDNDC) model is a process-based model that simulates the biogeochemical cycles of carbon, nitrogen, water and microclimate. The model is based on the DNDC model, which was developed for agricultural ecosystems, but the LDNDC model has the versatility to simulate other ecosystems, such as forests. In our group, it is used to simulate arable land, including agricultural peatland sites, and forestry peatland. These simulations are coupled with studies on the effect of different management scenarios until 2100 using different climate drivers.

Yasso

Yasso (Yet Another Simulator of Soil Organic matter) is FMI's own soil carbon model. In our group, we use it to investigate simulating Nitrogen mineralisation, simulating Finnish croplands on national and regional scales and to compare some other model approaches.