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- Title
FORTE 2.0: a fast, parallel and flexible coupled climate model.
- Authors
Blaker, Adam T.; Joshi, Manoj; Sinha, Bablu; Stevens, David P.; Smith, Robin S.; Hirschi, Joël J.-M.
- Abstract
FORTE 2.0 is an intermediate-resolution coupled atmosphere–ocean general circulation model (AOGCM) consisting of the Intermediate General Circulation Model 4 (IGCM4), a T42 spectral atmosphere with 35 σ layers, coupled to Modular Ocean Model – Array (MOMA), a 2 ∘ × 2 ∘ ocean with 15 z -layer depth levels. Sea ice is represented by a simple flux barrier. Both the atmosphere and ocean components are coded in Fortran. It is capable of producing a stable climate for long integrations without the need for flux adjustments. One flexibility afforded by the IGCM4 atmosphere is the ability to configure the atmosphere with either 35 σ layers (troposphere and stratosphere) or 20 σ layers (troposphere only). This enables experimental designs for exploring the roles of the troposphere and stratosphere, and the faster integration of the 20 σ layer configuration enables longer duration studies on modest hardware. A description of FORTE 2.0 is given, followed by the analysis of two 2000-year control integrations, one using the 35 σ configuration of IGCM4 and one using the 20 σ configuration.
- Subjects
ATMOSPHERIC models; GENERAL circulation model; STRATOSPHERE; TROPOSPHERE
- Publication
Geoscientific Model Development, 2021, Vol 14, Issue 1, p275
- ISSN
1991-959X
- Publication type
Article
- DOI
10.5194/gmd-14-275-2021