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Titel MESMO 2: a mechanistic marine silica cycle and coupling to a simple terrestrial scheme
VerfasserIn K. Matsumoto, K. Tokos, A. Huston, H. Joy-Warren
Medientyp Artikel
Sprache Englisch
ISSN 1991-959X
Digitales Dokument URL
Erschienen In: Geoscientific Model Development ; 6, no. 2 ; Nr. 6, no. 2 (2013-04-12), S.477-494
Datensatznummer 250017804
Publikation (Nr.) Volltext-Dokument vorhandencopernicus.org/gmd-6-477-2013.pdf
 
Zusammenfassung
Here we describe the second version of Minnesota Earth System Model for Ocean biogeochemistry (MESMO 2), an earth system model of intermediate complexity, which consists of a dynamical ocean, dynamic-thermodynamic sea ice, and energy moisture balanced atmosphere. The new version has more realistic land ice masks and is driven by seasonal winds. A major aim in version 2 is representing the marine silica cycle mechanistically in order to investigate climate-carbon feedbacks involving diatoms, a critically important class of phytoplankton in terms of carbon export production. This is achieved in part by including iron, on which phytoplankton uptake of silicic acid depends. Also, MESMO 2 is coupled to an existing terrestrial model, which allows for the exchange of carbon, water and energy between land and the atmosphere. The coupled model, called MESMO 2E, is appropriate for more complete earth system simulations. The new version was calibrated, with the goal of preserving reasonable interior ocean ventilation and various biological production rates in the ocean and land, while simulating key features of the marine silica cycle.
 
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