Biogeosciences
Biogeosciences
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Articles | Volume 22, issue 22
Articles | Volume 22, issue 22
https://doi.org/10.5194/bg-22-7403-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-22-7403-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 22, issue 22
Research article
 | 
28 Nov 2025
Research article |  | 28 Nov 2025

Transformation processes in the Oder Lagoon as seen from a model perspective

Thomas Neumann, Gerald Schernewski, and René Friedland

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Cited articles

Almroth-Rosell, E., Edman, M., Eilola, K., Meier, H. E. M., and Sahlberg, J.: Modelling nutrient retention in the coastal zone of an eutrophic sea, Biogeosciences, 13, 5753–5769, https://doi.org/10.5194/bg-13-5753-2016, 2016. a
Asmala, E., Carstensen, J., Conley, D. J., Slomp, C. P., Stadmark, J., and Voss, M.: Efficiency of the coastal filter: Nitrogen and phosphorus removal in the Baltic Sea, Limnology and Oceanography, 62, S222–S238, https://doi.org/10.1002/lno.10644, 2017. a, b, c, d, e, f
BMU: Zustand der deutschen Ostseegewässer 2024, Bundesministerium für Umwelt, Naturschutz, nukleare Sicherheit und Verbraucherschutz (BMUV), https://mitglieder.meeresschutz.info/de/berichte/zustandsbewertungen-art8-10.html?file=files/meeresschutz/berichte/art8910/zyklus2024/Zustandsbericht_Ostsee_2024.pdf, (last access: 20 November 2024), 2024. a
Börgel, F., Neumann, T., Rooze, J., Radtke, H., Barghorn, L., and Meier, H. E. M.: Deoxygenation of the Baltic Sea during the last millennium, Frontiers in Marine Science, 10, https://doi.org/10.3389/fmars.2023.1174039, 2023. a
Carstensen, J., Andersen, J. H., Gustafsson, B. G., and Conley, D. J.: Deoxygenation of the Baltic Sea during the last century, Proceedings of the National Academy of Sciences, 111, 5628–5633, https://doi.org/10.1073/pnas.1323156111, 2014. a
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We applied a 3D ecosystem model to the Oder Lagoon in the Baltic Sea and found that 40% of nitrogen and 12% of phosphorus are retained in the lagoon before entering the Baltic Sea. This is important for coarse-grained models that do not resolve such coastal structures. Moreover, the coastal filter supports the mitigation of eutrophication in the Baltic Sea.
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