Med-BGC MIP: A Mediterranean biogeochemical models comparison

Palmieri, Julien ORCID:; Mignot, Alexandre; Dutay, Jean-Claude; Richon, Camille; Macias Moy, Diego; d’Ortenzio, Fabrizio; Schmechtig, Catherine; Uitz, Julia; Houpert, Loic ORCID:; Lamouroux, Julien; Baklouti, Melika; Pages, Remi; Cosimo, Solidoro; Teruzzi, Anna; Lazzari, Paolo; Ciavatta, Stefano; Kay, Susan; Triantafyllou, George; Tsiaras, Kostas; Somot, Samuel. 2021 Med-BGC MIP: A Mediterranean biogeochemical models comparison. In: EGU General Assembly 2021, Online, 19-30 April 2021.

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The Mediterranean Sea has been identified as a hotspot for climate change. Furthermore, its very diverse trophic regimes, in such a little area, make it an extremely interesting region from a biogeochemical perspective. Numerous studies aim at better understanding and representing the Mediterrenean dynamics and biogeochemistry through modeling. This is a crucial step in order to predict the future anthropogenic impacts on the Mediterranean Sea and their possible effects on its biogeochemistry, and all what depends on it. The number of models that simulate the Mediterranean biogeochemistry, and the data available to compare with are now sufficient to draw an overall picture of the Mediterranean Sea biogeochemical models state of the art. In this study, we gathered 10 biogeochemical simulations of the Mediterranean Sea, including 8 regional and 2 high-resolution global configurations. The simulations are compared with surface chlorophyll estimates derived from satellite observations; chlorophyll, nitrate, oxygen, and particulate organic carbon concentrations derived from BGC-Argo floats, and phytoplankton group-specific primary production estimated from ocean color satellite observations. Our first aim is to describe and compare all known Mediterranean biogeochemical models, and to highlight their specificity. This should give an insight into the current achievements, and expose what biogeochemical model products are hence available for further ecological analysis. Furthermore, a specific attention is given to how well each model performs in selected regions of the Mediterranean Sea, in order to understand which specific process is needed to adequately represent the different trophic regimes of the Mediterranean Sea.

Item Type: Publication - Conference Item (Paper)
Digital Object Identifier (DOI):
Date made live: 19 May 2021 10:56 +0 (UTC)

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