2023
DOI: 10.1186/s40623-023-01806-7
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Super-rotation independent of horizontal diffusion reproduced in a Venus GCM

Abstract: Horizontal diffusion and resolution are important factors to generate and maintain the super-rotation in the general circulation model (GCM) because waves which transport angular momentum are sensitive to them. Here, we investigated how the super-rotation depends on the magnitude of horizontal hyper diffusion using a Venus atmospheric GCM with medium and high resolutions. In both the runs, we found a parameter range where the structure of fully developed super-rotation is almost independent of the magnitude of… Show more

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Cited by 1 publication
(2 citation statements)
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“…See the work of Sugimoto et al. (2023) for a discussion of how the model depends on the horizontal hyperviscosity. The vertical eddy diffusion is also used in the model, whose coefficient is fixed to be 0.0015 m20.17emnormals−1 ${{\mathrm{m}}^{\mathrm{2}}\,\mathrm{s}}^{-1}$ (Sugimoto et al., 2019).…”
Section: Modelmentioning
confidence: 99%
See 1 more Smart Citation
“…See the work of Sugimoto et al. (2023) for a discussion of how the model depends on the horizontal hyperviscosity. The vertical eddy diffusion is also used in the model, whose coefficient is fixed to be 0.0015 m20.17emnormals−1 ${{\mathrm{m}}^{\mathrm{2}}\,\mathrm{s}}^{-1}$ (Sugimoto et al., 2019).…”
Section: Modelmentioning
confidence: 99%
“…The horizontal eddy diffusion is represented by second-order hyperviscosity with a relaxation time of about 1 day for the largest wavenumber components. See the work of Sugimoto et al (2023) for a discussion of how the model depends on the horizontal hyperviscosity. The vertical eddy diffusion is also used in the model, whose coefficient is fixed to be 0.0015 𝐴𝐴 m 2 s −1 (Sugimoto et al, 2019).…”
Section: Modelmentioning
confidence: 99%