MOMSO 1.0 – an eddying Southern Ocean model configuration with fairly equilibrated natural carbon.

Dietze, Heiner , Löptien, Ulrike and Getzlaff, Julia (2020) MOMSO 1.0 – an eddying Southern Ocean model configuration with fairly equilibrated natural carbon. Open Access Geoscientific Model Development, 13 . pp. 71-97. DOI 10.5194/gmd-13-71-2020.

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We present a new near-global coupled biogeochemical ocean-circulation model configuration. The configuration features a horizontal discretization with a grid spacing of less than 11 km in the Southern Ocean and gradually coarsens in meridional direction to more than 200 km at 64∘ N, where the model is bounded by a solid wall. The underlying code framework is the Geophysical Fluid Dynamics Laboratory (GFDL)'s Modular Ocean Model coupled to the Biogeochemistry with Light, Iron, Nutrients and Gases (BLING) ecosystem model of Galbraith et al. (2010). The configuration is unique in that it features both a relatively equilibrated oceanic carbon inventory and an eddying ocean circulation based on a realistic model geometry/bathymetry – a combination that has been precluded by prohibitive computational cost in the past. Results from a simulation with climatological forcing and a sensitivity experiment with increasing winds suggest that the configuration is sufficiently equilibrated to explore Southern Ocean carbon uptake dynamics on decadal timescales. The configuration is dubbed MOMSO, a Modular Ocean Model Southern Ocean configuration.

Document Type: Article
Research affiliation: OceanRep > GEOMAR > FB2 Marine Biogeochemistry > FB2-BM Biogeochemical Modeling
Refereed: Yes
Open Access Journal?: Yes
Publisher: Copernicus Publications (EGU)
Related URLs:
Projects: SPP 1158, PalMod, Opendap
Date Deposited: 14 Jan 2019 12:03
Last Modified: 09 Mar 2023 14:11

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