Submitted as: model description paper 06 Jan 2021
Submitted as: model description paper | 06 Jan 2021
MESMO 3: Flexible phytoplankton stoichiometry and refractory DOM
- Department of Earth & Environmental Sciences, University of Minnesota, Minneapolis, Minnesota, USA
- Department of Earth & Environmental Sciences, University of Minnesota, Minneapolis, Minnesota, USA
Abstract. We describe the third version of Minnesota Earth System Model for Ocean biogeochemistry (MESMO 3), an earth system model of intermediate complexity, with a dynamical ocean, a dynamic-thermodynamic sea ice, and an energy moisture balanced atmosphere. A major feature of Version 3 is the flexible C : N : P ratio for the three phytoplankton functional types represented in the model. The flexible stoichiometry is based on the power law formulation with environmental dependence on phosphate, nitrate, temperature, and light. Other new features include nitrogen fixation, water column denitrification, oxygen and temperature-dependent organic matter remineralization, and CaCO3 production based on the concept of the residual nitrate potential growth. Also, we describe the semi-labile and refractory dissolved organic pools of C, N, P, and Fe that can be enabled in MEMSO 3 as an optional feature. The refractory dissolved organic matter can be degraded by photodegradation at the surface and hydrothermal vent degradation at the bottom. These improvements provide a basis for using MESMO 3 in further investigations of the global marine carbon cycle to changes in the environmental conditions of the past, present, and future.
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Katsumi Matsumoto et al.
Status: open (until 03 Mar 2021)
Katsumi Matsumoto et al.
Model code and software
MESMO version 3.0 code Katsumi Matsumoto https://doi.org/10.5281/zenodo.4403605
Katsumi Matsumoto et al.
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