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- Title
The Modular Arbitrary-Order Ocean-Atmosphere Model: MAOOAM v1.0.
- Authors
De Cruz, Lesley; Demaeyer, Jonathan; Vannitsem, Stéphane
- Abstract
This paper describes a reduced-order quasigeostrophic coupled ocean-atmosphere model that allows for an arbitrary number of atmospheric and oceanic modes to be retained in the spectral decomposition. The modularity of this new model allows one to easily modify the model physics. Using this new model, coined the "Modular Arbitrary-Order Ocean-Atmosphere Model" (MAOOAM), we analyse the dependence of the model dynamics on the truncation level of the spectral expansion, and unveil spurious behaviour that may exist at low resolution by a comparison with the higher-resolution configurations. In particular, we assess the robustness of the coupled low-frequency variability when the number of modes is increased. An "optimal" configuration is proposed for which the ocean resolution is sufficiently high, while the total number of modes is small enough to allow for a tractable and extensive analysis of the dynamics.
- Subjects
OCEAN-atmosphere interaction; ARBITRARY constants; MODULAR arithmetic; CHEMICAL weathering; FALSE precision (Statistics); MATHEMATICAL models
- Publication
Geoscientific Model Development, 2016, Vol 9, Issue 8, p2793
- ISSN
1991-959X
- Publication type
Article
- DOI
10.5194/gmd-9-2793-2016