Articles | Volume 15, issue 22 
            
                
                    
            
            
            https://doi.org/10.5194/gmd-15-8473-2022
                    © Author(s) 2022. This work is distributed under 
the Creative Commons Attribution 4.0 License.
                the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gmd-15-8473-2022
                    © Author(s) 2022. This work is distributed under 
the Creative Commons Attribution 4.0 License.
                the Creative Commons Attribution 4.0 License.
Non-Redfieldian carbon model for the Baltic Sea (ERGOM version 1.2) – implementation and budget estimates
Thomas Neumann
CORRESPONDING AUTHOR
                                            
                                    
                                            Leibniz Institute for Baltic Sea Research Warnemünde, Seestr. 15, 18119 Rostock, Germany
                                        
                                    Hagen Radtke
                                            Leibniz Institute for Baltic Sea Research Warnemünde, Seestr. 15, 18119 Rostock, Germany
                                        
                                    Bronwyn Cahill
                                            Leibniz Institute for Baltic Sea Research Warnemünde, Seestr. 15, 18119 Rostock, Germany
                                        
                                    Martin Schmidt
                                            Leibniz Institute for Baltic Sea Research Warnemünde, Seestr. 15, 18119 Rostock, Germany
                                        
                                    Gregor Rehder
                                            Leibniz Institute for Baltic Sea Research Warnemünde, Seestr. 15, 18119 Rostock, Germany
                                        
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- Warm saltwater inflows strengthen oxygen depletion in the western Baltic Sea L. Barghorn et al. 10.1007/s00382-024-07501-x
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- Variable organic matter stoichiometry enhances the biological drawdown of CO2 in the northwest European shelf seas K. Demir et al. 10.5194/bg-22-2569-2025
- Ecosystem Services of the Baltic Sea—State and Changes during the Last 150 Years G. Schernewski et al. 10.3390/environments11090200
- Causes and consequences of acidification in the Baltic Sea: implications for monitoring and management E. Gustafsson et al. 10.1038/s41598-023-43596-8
- A regional pCO2 climatology of the Baltic Sea from in situ pCO2 observations and a model-based extrapolation approach H. Bittig et al. 10.5194/essd-16-753-2024
- Phytoplankton Dynamics in a Large Lagoon: Nutrient Load Reductions, Climate Change, and Cold- and Heatwaves G. Schernewski et al. 10.3390/environments12100370
- The Baltic Sea Model Intercomparison Project (BMIP) – a platform for model development, evaluation, and uncertainty assessment M. Gröger et al. 10.5194/gmd-15-8613-2022
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25 citations as recorded by crossref.
- Mapping microplastic pathways and accumulation zones in the Gulf of Finland, Baltic Sea – insights from modeling A. Mishra et al. 10.3389/fmars.2024.1524585
- Evolutionary adaptation to steady or changing environments affects competitive outcomes in marine phytoplankton I. Hochfeld & J. Hinners 10.1002/lno.12559
- Ecosystem Services Supporting Environmental Impact Assessments (EIAs): Assessments of Navigation Waterways Deepening Based on Data, Experts, and a 3D Ecosystem Model G. Schernewski et al. 10.3390/land13101653
- Limited ventilation of the central Baltic Sea due to elevated oxygen consumption L. Naumov et al. 10.3389/fmars.2023.1175643
- Deconstructing co-occurring marine heatwave and phytoplankton bloom events in the Arkona Sea in 2018 B. Cahill et al. 10.3389/fmars.2024.1323271
- Direct effects of ocean alkalinity enhancement in the Baltic Sea–results from in-silico experiments A. Anschütz et al. 10.3389/fclim.2025.1450468
- Bioavailability and remineralization rates of sediment-derived dissolved organic carbon from a Baltic Sea depositional area M. Lengier et al. 10.3389/fmars.2024.1359563
- New approaches to unveil the unknown: oxygen depletion and internal eutrophication in a Baltic lagoon over decades G. Schernewski et al. 10.3389/fenvs.2025.1620191
- Phytoplankton Dynamics in a Large Lagoon: Nutrient Load Reductions, Climate Change, and Cold- and Heatwaves G. Schernewski et al. 10.3390/environments12100370
- Predicting historical oxygen deficiency areas in the western Baltic Sea: A multi-model approach S. Piehl et al. 10.1016/j.marpolbul.2025.118464
- Marked recent declines in boron in Baltic Sea cod otoliths – a bellwether of incipient acidification in a vast hypoxic system? K. Limburg et al. 10.5194/bg-20-4751-2023
- Validation of the coupled physical–biogeochemical ocean model NEMO–SCOBI for the North Sea–Baltic Sea system I. Ruvalcaba Baroni et al. 10.5194/bg-21-2087-2024
- Coastal zones of the Baltic Sea in the Anthropocene: Current state and the impact of climate change M. Voss et al. 10.1016/j.ecss.2025.109504
- Increase in marginal sea alkalinity may impact air–sea carbon dioxide exchange and buffer acidification L. Cotovicz et al. 10.1002/lno.12672
- Dynamics of oxygen sources and sinks in the Baltic Sea under different nutrient inputs L. Naumov et al. 10.3389/fmars.2023.1233324
- Modeling the pathways of microplastics in the Gulf of Finland, Baltic Sea – sensitivity of parametrizations E. Siht et al. 10.1007/s10236-024-01649-0
- Ecosystem-Model-Based Valuation of Ecosystem Services in a Baltic Lagoon: Long-Term Human Technical Interventions and Short-Term Variability G. Schernewski et al. 10.3390/environments12020035
- Warm saltwater inflows strengthen oxygen depletion in the western Baltic Sea L. Barghorn et al. 10.1007/s00382-024-07501-x
- Arctic Oceanic Carbon Cycle: A Comprehensive Review of Mechanisms, Regulations, and Models X. Ye et al. 10.3390/w16121667
- A Synthesis of Global Coastal Ocean Greenhouse Gas Fluxes L. Resplandy et al. 10.1029/2023GB007803
- Deoxygenation of the Baltic Sea during the last millennium F. Börgel et al. 10.3389/fmars.2023.1174039
- Variable organic matter stoichiometry enhances the biological drawdown of CO2 in the northwest European shelf seas K. Demir et al. 10.5194/bg-22-2569-2025
- Ecosystem Services of the Baltic Sea—State and Changes during the Last 150 Years G. Schernewski et al. 10.3390/environments11090200
- Causes and consequences of acidification in the Baltic Sea: implications for monitoring and management E. Gustafsson et al. 10.1038/s41598-023-43596-8
- A regional pCO2 climatology of the Baltic Sea from in situ pCO2 observations and a model-based extrapolation approach H. Bittig et al. 10.5194/essd-16-753-2024
3 citations as recorded by crossref.
- Phytoplankton Dynamics in a Large Lagoon: Nutrient Load Reductions, Climate Change, and Cold- and Heatwaves G. Schernewski et al. 10.3390/environments12100370
- The Baltic Sea Model Intercomparison Project (BMIP) – a platform for model development, evaluation, and uncertainty assessment M. Gröger et al. 10.5194/gmd-15-8613-2022
- Non-Redfieldian carbon model for the Baltic Sea (ERGOM version 1.2) – implementation and budget estimates T. Neumann et al. 10.5194/gmd-15-8473-2022
Latest update: 31 Oct 2025
Short summary
            Marine ecosystem models are usually constrained by the elements nitrogen and phosphorus and consider carbon in organic matter in a fixed ratio. Recent observations show a substantial deviation from the simulated carbon cycle variables. In this study, we present a marine ecosystem model for the Baltic Sea which allows for a flexible uptake ratio for carbon, nitrogen, and phosphorus. With this extension, the model reflects much more reasonable variables of the marine carbon cycle.
            Marine ecosystem models are usually constrained by the elements nitrogen and phosphorus and...
            
         
 
                             
                             
             
             
            