First description of the Minnesota Earth System Model for Ocean biogeochemistry (MESMO 1.0)
First description of the Minnesota Earth System Model for Ocean biogeochemistry (MESMO 1.0)
Here we describe the first version of the Minnesota Earth System Model for Ocean biogeochemistry (MESMO 1.0), an intermediate complexity model based on the Grid ENabled Integrated Earth system model (GENIE-1). As with GENIE-1, MESMO has a 3D dynamical ocean, energy-moisture balance atmosphere, dynamic and thermodynamic sea ice, and marine biogeochemistry. Main development goals of MESMO were to: (1) bring oceanic uptake of anthropogenic transient tracers within data constraints; (2) increase vertical resolution in the upper ocean to better represent near-surface biogeochemical processes; (3) calibrate the deep ocean ventilation with observed abundance of radiocarbon. We achieved all these goals through a combination of objective model optimization and subjective targeted tuning. An important new feature in MESMO that dramatically improved the uptake of CFC-11 and anthropogenic carbon is the depth dependent vertical diffusivity in the ocean, which is spatially uniform in GENIE-1. In MESMO, biological production occurs in the top two layers above the compensation depth of 100 m and is modified by additional parameters, for example, diagnosed mixed layer depth. In contrast, production in GENIE-1 occurs in a single layer with thickness of 175 m. These improvements make MESMO a well-calibrated model of intermediate complexity suitable for investigations of the global marine carbon cycle requiring long integration time.
1-15
Matsumoto, K.
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Tokos, K.S.
2a552bc4-a929-40cb-86b9-800430abf6c8
Price, A.R.
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Cox, S.J.
0e62aaed-24ad-4a74-b996-f606e40e5c55
4 August 2008
Matsumoto, K.
24698ab9-2299-4e6d-8669-9b9a5643b74c
Tokos, K.S.
2a552bc4-a929-40cb-86b9-800430abf6c8
Price, A.R.
15a6667c-60da-42e9-b6dd-4c0e56c33c52
Cox, S.J.
0e62aaed-24ad-4a74-b996-f606e40e5c55
Matsumoto, K., Tokos, K.S., Price, A.R. and Cox, S.J.
(2008)
First description of the Minnesota Earth System Model for Ocean biogeochemistry (MESMO 1.0).
Geoscientific Model Development, 1 (1), .
Abstract
Here we describe the first version of the Minnesota Earth System Model for Ocean biogeochemistry (MESMO 1.0), an intermediate complexity model based on the Grid ENabled Integrated Earth system model (GENIE-1). As with GENIE-1, MESMO has a 3D dynamical ocean, energy-moisture balance atmosphere, dynamic and thermodynamic sea ice, and marine biogeochemistry. Main development goals of MESMO were to: (1) bring oceanic uptake of anthropogenic transient tracers within data constraints; (2) increase vertical resolution in the upper ocean to better represent near-surface biogeochemical processes; (3) calibrate the deep ocean ventilation with observed abundance of radiocarbon. We achieved all these goals through a combination of objective model optimization and subjective targeted tuning. An important new feature in MESMO that dramatically improved the uptake of CFC-11 and anthropogenic carbon is the depth dependent vertical diffusivity in the ocean, which is spatially uniform in GENIE-1. In MESMO, biological production occurs in the top two layers above the compensation depth of 100 m and is modified by additional parameters, for example, diagnosed mixed layer depth. In contrast, production in GENIE-1 occurs in a single layer with thickness of 175 m. These improvements make MESMO a well-calibrated model of intermediate complexity suitable for investigations of the global marine carbon cycle requiring long integration time.
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Mats_08.pdf
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Submitted date: 21 February 2008
Published date: 4 August 2008
Identifiers
Local EPrints ID: 50800
URI: http://eprints.soton.ac.uk/id/eprint/50800
ISSN: 1991-9603
PURE UUID: 48ade22d-177d-48f6-b228-9b2d4ab3b338
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Date deposited: 01 Apr 2008
Last modified: 15 Mar 2024 10:12
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Contributors
Author:
K. Matsumoto
Author:
K.S. Tokos
Author:
A.R. Price
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