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Biogeochemical coupling in the NASA-GISS climate model.
A. Romanou, W. Gregg, G. A. Schmidt, and R. Bleck
Columbia University and NASA-GISS
(Abstract received 07/17/2007 for session X)
ABSTRACT
A 14-component biogeochemical model (NBOM developed by W. Gregg) is coupled to HYCOM ocean model within the NASA-GISS climate model. The aim is to describe the solubility, biological but also carbonate pumps and the change of their relative roles in a changing climate. Four nutrient, four phytoplankton, 1 zooplankton, 3 detritus components, together with DOC and DIC comprise the biogeochemical space the model solves in. Spectral irradiances are transferred to the ocean and are altered by the ocean biology at surface and in depth. The ensuing upwelling radiance changes the albedo and the energy budget at the surface of the ocean.
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2007 LOM Workshop, Bergen, Norway, August 20-22, 2007