Saturn Atmospheric Structure and Dynamics

Genio, Anthony D. Del; Achterberg, R. K.; Baines, K. H.; Flasar, F. M.; Read, P. L.; Sánchez‐Lavega, A.; Showman, Adam P.

doi:10.1007/978-1-4020-9217-6_6

Cited by 53 publications

(58 citation statements)

References 213 publications

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“…Although errors in the resulting profile are dependent on the smoothing procedure (i.e. on the box used to calculate the averages), our results agree well with previous published vorticity gradient profiles by Del Genio et al (2009) and Read et al (2009). We find @ 2 u=@y 2 ¼ 6 AE 1 Â 10 À12 m À1 s À1 at the latitude of CS.…”

Section: Discussionsupporting

confidence: 90%

“…On the other hand, UðrmsÞ ¼ 0:5 ffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffi ðu 0 Þ 2 þ ðv 0 Þ 2 q $ 10 m s À1 , according to the turbulent velocities measured in Cassini ISS images (see e.g. Del Genio et al, 2007Genio et al, , 2009). This value is close to U(rms) $ 16 m s À1 , the value tabulated by Sánchez-Lavega et al (2000) at the latitude of CS derived from cloud tracking of Voyager images.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

A long-lived cyclone in Saturn’s atmosphere: Observations and models

Río‐Gaztelurrutia

Legarreta

Hueso

et al. 2010

Icarus

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Section: Discussionsupporting

confidence: 90%

Section: Discussionmentioning

confidence: 99%

A long-lived cyclone in Saturn’s atmosphere: Observations and models

Río‐Gaztelurrutia

Legarreta

Hueso

et al. 2010

Icarus

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“…15a (Galperin et al , 2006. Recent studies explore both the zonostrophic regime and the presence of the zonons in planetary circulations (Del Genio et al 2009;Guillot et al 2009). For the oceanic flows, R β 1.5 and so they can be classified as transitional or marginally zonostrophic.…”

Section: Discussionmentioning

confidence: 97%

Geophysical flows with anisotropic turbulence and dispersive waves: flows with a β-effect

2010

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Geostrophic turbulence is a key paradigm in the current understanding of the large-scale planetary circulations. It implies that a flow is turbulent, rotating, stably stratified, and in near-geostrophic balance. When a small-scale forcing is present, geostrophic turbulence features an inverse energy cascade. When the meridional variation of the Coriolis parameter (or a β-effect) is included, the horizontal flow symmetry breaks down giving rise to the emergence of jet flows. The presence of a large-scale drag ensures that the flow attains a steady state. Dependent on the governing parameters, four steady-state flow regimes are possible, two of which are considered in this study. In one of these regimes, a flow is dominated by the drag while in the other one, the recently discovered regime of zonostrophic turbulence, a flow becomes strongly anisotropic and features slowly evolving systems of alternating zonal jets. Zonostrophic turbulence is distinguished by anisotropic inverse energy cascade and emergence of a new class of nonlinear waves known as zonons. In addition, meridional scalar diffusion is strongly modified in this regime. This paper provides an overview of various regimes of turbulence with a β-effect, elaborates main characteristics of frictiondominated and zonostrophic turbulence, elucidates the physical nature of the zonons, discusses the meridional diffusion processes in different regimes, and relates these results to oceanic observations.

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“…Del Genio et al, 2009). These features have been observed predominantly at localized symmetric latitudes in both hemispheres around 38°N during the Voyager flybys in 1980-1981(Ingersoll et al, 1984 and at 38°S since 2002 (unless explicitly stated otherwise, all latitudes quoted in this paper are planetographic).…”

Section: Introductionmentioning

confidence: 95%