Marine Biogeochemistry

Research Activities

Model development and improvement

  • development and improvement of biogeochemical models that are commonly applied in global simulations, such as the classical NPZD type model (nutrient-phytoplankton-zooplankton-detritus).

  • development of new modelling concepts (e.g. optimality-based models), and

  • improvement of representations of the interaction of marine biogeochemistry and ecology with the physical environment.


Model assessment and calibration

of biogeochemical models in the local and global context under present, past and likely future conditions in order to improve reliability and uncertainty estimates of model simulations.


Model application

to study the role and sensitivity of the marine biogeochemistry and ecology to natural and anthropogenic global change using our knowledge and tools (see research activities 1 and 2).



Current external funded projects

CDR-MIP: Carbon Dioxide Removal Model Intercomparison Project

CYAN: Towards a deeper Understanding of Cyanobacteria Blooms in the Baltic Sea (DfG)

ESM: Advanced Earth System Model Capacity; Work package 1 – Earth system model developmentIntegration of a marine bio-geochemistry model into the Earth System Model FOCI

Future Ocean, Cluster of Excellence: Could Artificial Upwelling Prevent and Mitigate Coral Bleaching

Future Ocean, Cluster of Excellence: Future Ocean CP1786 – Impacts of nutrient pollutants on marine productivity, deoxygenation, and sedimentary feedbacks in the Anthropocene: From the coastal to the global ocean

PalMod: WP2.1 – Transient glacial simulations with an optimality-based marine ecosystem model embedded in Uvic-ESCM

PalMod: WP4.1 – A model calibration framework exemplified for the ocean biogeochemical component

Reduced Complexity Models: Using advanced data science methods for the Development of reduced complexity models for a broad range of applications from environmental-, energy- and health research and from the field of robotic. HGF strategic project



Collaborative Research Center 754 "Climate-Biogeochemistry Interactions in the Tropical Ocean" (DfG):

SFB 754: A2 – High resolution modelling of physical-biogeochemical interactions in the tropical ocean: determination of potential future trends

SFB 745: B1 – A global model of redox-dependent biogeochemical cycles

SFB 745: B2 – Influence of the oxygen minimum zone on key nutrient stoichiometry and source/sink mechanisms in the Peru upwelling zone

SFB 745: B8 – The role of zooplankton in N-, P- and C- cycling and for the oxygen budget of tropical oxygen minimum zones



Priority Programme 1689: Climate Engineering – Risks, Challenges, Opportunities? (DfG):

SPP 1689: CDR-MIA – Carbon Dioxide Removal Model Intercomparison Assessment

SPP 1689: CompareCE-2 – Comparative assessment of potential impacts, side effects and uncertainties of Climate Engineering measures and emission-reduction efforts