REcoM - in its current standard set-up - carries 21 tracers, including dissolved inorganic carbon and alkalinity for the carbonate system, the macronutrients dissolved inorganic nitrogen (DIN) and silicic acid and the trace metal iron. REcoM2 has two phytoplankton classes, nanophytoplankton (with implicit representation of calcifiers) and diatoms. The intracellular stoichiometry of C:N:Si:Chl pools for diatoms and C:N:CaCO3:Chl pools for nanophytoplankton is allowed to respond dynamically to environmental conditions following Geider et al., 1998. The intracellular iron pool is a function of the intracellular nitrogen concentration (fixed Fe:N) as iron is physiologically linked to enzyme formation, especially the photosynthetic electron transport chain (Raven et al., 1988, Behrenfeld et al., 2013). Dead organic matter is transferred to detritus by aggregation and grazing by one zooplankton class and the sinking and advection of detritus is represented explicitly.
Main REcoM references:
Schourup-Kristensen, V., Wekerle, C., Wolf-Gladrow, D., Völker, C. (2018): Arctic Ocean biogeochemistry in the high resolution FESOM 1.4-REcoM2 model, Progress in Oceanography, 168, 65-81,doi:10.1016/j.pocean.2018.09.006.
Schourup-Kristensen, V., Sidorenko, D., Wolf-Gladrow, D.A. and Völker, C. (2014). A skill assessment of the biogeochemical model REcoM2 coupled to the Finite Element Sea Ice-Ocean Model (FESOM 1.3), Geoscientific Model Development, 7 (6), 2769-2802. doi:10.5194/gmd-7-2769-2014
Hauck, J., Völker, C., Wang, T., Hoppema, M., Losch, M. and Wolf-Gladrow, D.A. (2013). Seasonally different carbon flux changes in the Southern Ocean in response to the southern annular mode, Global Biogeochemical Cycles, 27 (4), 1236-1245. doi:10.1002/2013GB004600
Schartau, M., A. Engel, J. Schröter, S. Thoms, C. Völker, and D. Wolf- Gladrow (2007), Modelling carbon overconsumption and the formation of extracellular particulate organic carbon, Biogeosciences, 4, 433–454, doi:10.5194/bg-4-433-2007
FESOM (Finite-Element/volumE Sea ice-Ocean Model) is a multi-resolution sea ice-ocean model that solves the equations of motion on unstructured meshes. The model is developed and supported by researchers at the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI).
See also FESOM on youtube channel
MITgcm was used extensively with REcoM in the past and is still in use for specific research question.