Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/1176
AuthorsVichi, M.* 
Pinardi, N.* 
Masina, S.* 
TitleA generalized model of pelagic biogeochemistry for the global ocean ecosystem. Part I: theory
Issue Date19-Jun-2006
URIhttp://hdl.handle.net/2122/1176
Keywordsmarine biogeochemistry
biomass-based ecosystem model
ecological stoichiometry
ERSEM
PELAGOS
BFM
Subject Classification03. Hydrosphere::03.01. General::03.01.07. Physical and biogeochemical interactions 
03. Hydrosphere::03.04. Chemical and biological::03.04.01. Biogeochemical cycles 
03. Hydrosphere::03.04. Chemical and biological::03.04.02. Carbon cycling 
03. Hydrosphere::03.04. Chemical and biological::03.04.04. Ecosystems 
AbstractThe set of equations for global ocean biogeochemistry deterministic models have been for-mulated in a comprehensive and unified form in order to use them in numerical simulations of the marine ecosystem for climate change studies (PELAGOS, PELAgic biogeochemistry for Global Ocean Simulations). The fundamental approach stems from the representation of marine trophic interactions and major biogeochemical cycles introduced in the European Regional Seas Ecosystem Model (ERSEM). Our theoretical formulation revisits and generalizes the stoichiometric approach of ERSEM by defining the state variables as Chemical Functional Families (CFF). CFFs are further subdivided into living, non-living and inorganic components. Living CFFs are the basis for the definition of Living Functional Groups, the biomass-based functional prototype of the real organisms. Both CFFs and LFGs are theoretical constructs which allow us to relate measurable properties of marine biogeochemistry to the state variables used in deterministic models. This approach is sufficiently generic that may be used to describe other existing biomass-based ecosystem model.
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