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Marine ecosystem models increasingly address challenges that involve many biogeochemical processes operating on multiple spatiotemporal scales. Eutrophication is a key example, with models needing to link nutrient loads to ultimate societal impact, while accounting for a plethora of biogeochemical transformations in water and sediment along the way. We propose that the complexity of this challenge necessitates a collaborative approach: the distributed development of process models, cherry picked and combined at will to build ecosystem models that address specific questions and constraints. The open-source Framework for Aquatic Biogeochemical Models (FABM, <a href=" http://fabm.net' target="_blank"> http://fabm.net </a>) is designed for this purpose: it enables the development of self-contained process models, combinable into ecosystem models of user-specific complexity, and usable from a wide range of hydrodynamic models (GOTM, GETM, NEMO, MOM, ROMS, FVCOM). The viability of this approach is demonstrated with the European Region Seas Ecosystem Model (ERSEM). Through its use of FABM, the modularized ERSEM seamlessly scales from a simple four-variable ecosystem to a comprehensive model featuring many types of plankton and benthic fauna, multiple chemical elements, and detailed descriptions of carbonate and redox chemistry.

D5, Descriptor 5, modelling, eutrophication,

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20/01/2016

Workshop of the Network of Experts for ReDeveloping Models of the European Marine Environment

OV

EN

201604261425

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