Preprints
https://doi.org/10.5194/gmd-2021-361
https://doi.org/10.5194/gmd-2021-361

Submitted as: model description paper 10 Jan 2022

Submitted as: model description paper | 10 Jan 2022

Review status: this preprint is currently under review for the journal GMD.

FOCI-MOPS v1 – Integration of Marine Biogeochemistry within the Flexible Ocean and Climate Infrastructure version 1 (FOCI 1) Earth system model

Chia-Te Chien1, Jonathan V. Durgadoo1,2, Dana Ehlert1, Ivy Frenger1, David P. Keller1, Wolfgang Koeve1, Iris Kriest1, Angela Landolfi1,3, Lavinia Patara1, Sebastian Wahl1, and Andreas Oschlies1,2 Chia-Te Chien et al.
  • 1GEOMAR Helmholtz-Zentrum für Ozeanforschung Kiel, Düsternbrooker Weg 20, D-24105 Kiel, Germany
  • 2Kiel University, D-24105 Kiel, Germany
  • 3ISMAR-CNR, via Fosso del Cavaliere 100, 0133 Rome Italy

Abstract. The consideration of marine biogeochemistry is essential for simulating the carbon cycle in an Earth system model. Here we present the implementation and evaluation of a marine biogeochemical model, Model of Oceanic Pelagic Stoichiometry (MOPS) in the Flexible Ocean and Climate Infrastructure (FOCI) climate model. FOCI-MOPS enables the simulation of marine biological processes, the marine carbon, nitrogen and oxygen cycles, air-sea gas exchange of CO2 and O2, and simulations with prescribed atmospheric CO2 or CO2 emissions. A series of experiments covering the historical period (1850–2014) were performed following the DECK (Diagnostic, Evaluation and Characterization of Klima) and CMIP6 (Coupled Model Intercomparison Project 6) protocols. Overall, modelled biogeochemical tracer distributions and fluxes, as well as transient evolution in surface air temperature, air-sea CO2 fluxes, and changes of ocean carbon and heat, are in good agreement with observations. Modelled inorganic and organic tracer distributions are quantitatively evaluated by statistically-derived metrics. Results of the FOCI-MOPS model, also including sea surface temperature, surface pH, oxygen (100–600 m), nitrate (0–100 m), and primary production, are within the range of other CMIP6 model results. Overall, the evaluation of FOCI-MOPS indicates its suitability for Earth climate system simulations.

Chia-Te Chien et al.

Status: open (until 07 Mar 2022)

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Chia-Te Chien et al.

Data sets

Supplementary Data to "FOCI-MOPS v1 - Integration of Marine Biogeochemistry within the Flexible Ocean and Climate Infrastructure version 1 (FOCI 1) Earth system model" [dataset] Chien, Chia-Te, Durgadoo, Jonathan,  Ehlert, Dana,  Frenger, Ivy,  Keller, David,  Koeve, Wolfgang,  Kriest, Iris,  Landolfi, Angela,  Patara, Lavinia,  Wahl, Sebastian, and  Oschlies, Andreas https://hdl.handle.net/20.500.12085/4d2124a6-6540-4f1c-a240-94f3e3919e54

Chia-Te Chien et al.

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Short summary
We present the implementation and evaluation of a marine biogeochemical model, Model of Oceanic Pelagic Stoichiometry (MOPS) in the Flexible Ocean and Climate Infrastructure (FOCI) climate model. FOCI-MOPS enables the simulation of marine biological processes, the marine carbon, nitrogen and oxygen cycles, air-sea gas exchange of CO2 and O2. As shown by our evaluation, FOCI-MOPS overall shows an adequate performance that makes it an appropriate tool for Earth climate system simulations.