Journal cover Journal topic
Geoscientific Model Development An interactive open-access journal of the European Geosciences Union
https://doi.org/10.5194/gmd-2017-138
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 4.0 License.
Model description paper
20 Jun 2017
Review status
This discussion paper is a preprint. It is a manuscript under review for the journal Geoscientific Model Development (GMD).
Modular System for Shelves and Coasts (MOSSCO v1.0) – a flexible and multi-component framework for coupled coastal ocean ecosystem modelling
Carsten Lemmen1, Richard Hofmeister1,4, Knut Klingbeil2,5, M. Hassan Nasermoaddeli3,6, Onur Kerimoglu1, Hans Burchard2, Frank Kösters3, and Kai W. Wirtz1 1Institute of Coastal Research, Helmholtz-Zentrum Geesthacht Zentrum für Material- und Küstenforschung, 21502 Geesthacht, Germany
2Department of Physical Oceanography and Instrumentation, Leibniz-Institute for Baltic Sea Research, 18119 Rostock-Warnemünde, Germany
3Section Estuary Systems I, Bundesanstalt für Wasserbau, 22559 Hamburg, Germany
4Institute for Hydrobiology and Fisheries Science, Universität Hamburg, 22767 Hamburg, Germany
5Department of Mathematics, Universität Hamburg, 20146 Hamburg, Germany
6Landesbetrieb Straßen, Brücken und Gewässer, Freie und Hansestadt Hamburg, 20097 Hamburg, Germany
Abstract. Shelf and coastal sea processes extend from the atmosphere through the water column and into the sea bed. These processes are driven by physical, chemical, and biological interactions at local scales, and they are influenced by transport and cross strong spatial gradients. The linkages between domains and many different processes are not adequately described in current model systems. Their limited integration level in part reflects lacking modularity and flexibility; this shortcoming hinders the exchange of data and model components and has historically imposed supremacy of specific physical driver models. We here present the Modular System for Shelves and Coasts (MOSSCO, http://www.mossco.de), a novel domain and process coupling system tailored – but not limited – to the coupling challenges of and applications in the coastal ocean. MOSSCO builds on the existing coupling technology Earth System Modeling Framework and on the Framework for Aquatic Biogeochemical Models, thereby creating a unique level of modularity in both domain and process coupling; the new framework adds rich metadata, flexible scheduling, configurations that allow several tens of models to be coupled, and tested setups for coastal coupled applications. That way, MOSSCO addresses the technology needs of a growing marine coastal Earth System community that encompasses very different disciplines, numerical tools, and research questions.

Citation: Lemmen, C., Hofmeister, R., Klingbeil, K., Nasermoaddeli, M. H., Kerimoglu, O., Burchard, H., Kösters, F., and Wirtz, K. W.: Modular System for Shelves and Coasts (MOSSCO v1.0) – a flexible and multi-component framework for coupled coastal ocean ecosystem modelling, Geosci. Model Dev. Discuss., https://doi.org/10.5194/gmd-2017-138, in review, 2017.
Carsten Lemmen et al.
Carsten Lemmen et al.
Carsten Lemmen et al.

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Short summary
To describe coasts in a computer model, many processes have to represented from the air through the water into the ocean floor from different scientific disciplines. No existing computer model adequately addressed this complexity. We present the Modular System for Shelves and Coasts (MOSSCO), that embraces this diversity and that flexibly connects several tens of individual process models. MOSSCO also makes it easier to bring local knowledge to the Earth System level.
To describe coasts in a computer model, many processes have to represented from the air through...
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