Atmospheric Dynamics of the Outer Planets
Abstract
Despite major differences in the solar and internal energy inputs, the atmospheres of the four Jovian planets all exhibit latitudinal banding and high-speed jet streams. Neptune and Saturn are the windiest planets, Jupiter is the most active, and Uranus is a tipped-over version of the others. Large oval storm systems exhibit complicated time-dependent behavior that can be simulated in numerical models and laboratory experiments. The largest storm system, the Great Red Spot of Jupiter, has survived for more than 300 years in a chaotic shear zone where smaller structures appear and dissipate every few days. Future space missions will add to our understanding of small-scale processes, chemical composition, and vertical structure. Theoretical hypotheses about the interiors provide input for fluid dynamical models that reproduce many observed features of the winds, temperatures, and cloud patterns. In one set of models the winds are confined to the thin layer where clouds form. In other models, the winds extend deep into the planetary fluid interiors. Hypotheses will be tested further as observations and theories become more exact and detailed comparisons are made.
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In the Uranus and Neptune simulations, the equator-to-pole brightness temperature contrasts are 8 and 2 K, respectively, consistent with observations.
“In the Uranus and Neptune simulations, the equator-to-pole brightness temperature contrasts are 8 and 2 K, respectively, consistent with observations (Ingersoll 1990).”
From Mechanisms of Jet Formation on the Giant Planets (2010) · cites this paper as Ingersoll 1990
In the Saturn simulation, the equator-to-pole brightness temperature contrast is 7 K, consistent with observations.
“In the Saturn simulation, the equator-topole brightness temperature contrast is 7 K, consistent with observations (Ingersoll 1990;Fletcher et al. 2007).”
From Mechanisms of Jet Formation on the Giant Planets (2010) · cites this paper as Ingersoll 1990
In the Jupiter simulation, the equator-to-pole contrast in the brightness temperature of thermal radiation is 10 K, which is similar to, albeit larger than, the observed brightness temperature contrast or the observed temperature contrast near the emission level.
“In the Jupiter simulation, the equator-to-pole contrast in the brightness temperature of thermal radiation is 10 K, which is similar to, albeit larger than, the observed brightness temperature contrast or the observed temperature contrast near the emission level (Ingersoll et al. 1976;Ingersoll 1990;Ingersoll et al. 2004;Simon-Miller et al. 2006).”
From Mechanisms of Jet Formation on the Giant Planets (2010) · cites this paper as Ingersoll 1990
Variations in brightness temperature gradients off the equator may be weaker in the Jupiter and Saturn simulations than they are in observations, at least at some wavelengths.
“Variations in brightness temperature gradients off the equator may be weaker in the Jupiter and Saturn simulations than they are in observations, at least at some wavelengths(Ingersoll 1990; Ingersoll et al. 2004).”
From Mechanisms of Jet Formation on the Giant Planets (2010) · cites this paper as Ingersoll 1990
The thermal optical depths t_l0 at pressure p0 are chosen such that the observed thermal emission levels of the giant planets approximately correspond to t_l = 1.
“The thermal optical depths t l0 at pressure p 0 are chosen such that the observed thermal emission levels (e.g., Ingersoll 1990) of the giant planets approximately correspond to t l 5 1.”
From Mechanisms of Jet Formation on the Giant Planets (2010) · cites this paper as Ingersoll 1990
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“Coherent jets that are not forced at the jet scale are often observed in turbulent flows, with a familiar geophysical-scale example being the banded winds of the gaseous planets (Ingersoll 1990; Vasavada and Showman 2005; Sánchez-Lavega et al. 2008).”
BackgroundOn the vertical wind shear of Saturn's Equatorial Jet at cloud level
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“sion devices. 1. Introduction Coherent jets that are not forced at the jet scale are often observed in turbulent flows with a familiar geophysical example being the zonal winds of the gaseous planets (Ingersoll 1990). This phenomenon of spontaneous jet formation in turbulence has been extensively investigated in observ…”
Origins of atmospheric zonal winds
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Atmospheres on Nonsynchronized Eccentric-tilted Exoplanets. I. Dynamical Regimes
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“For example, Neptune (supposed to be in regime III) shows a strong westward jet at the equator in the troposphere (Ingersoll 1990; Liu & Schneider 2010), and Jupiters stratosphere (supposed to be in regime II) shows a strong four-year quasi-periodic oscillation at the equator (Leovy et al. 1991;…”
BackgroundForce balance in rapidly rotating Rayleigh–Bénard convection
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“…as deep convection in the interior of gaseous planets (Busse & Carrigan 1976; Busse 1994; Yadav & Bloxham 2020) and zonal flows in their atmosphere (Ingersoll 1990; Sanchez-Lavega, Rojas & Sada 2000; Porco et al. 2003; Heimpel & Aurnou 2007; Heimpel, Gastine & Wicht 2016; Cabanes et al. 2017), as…”
BackgroundTemporal behavior of cloud morphologies and motions in Saturn's atmosphere
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- Authors
- Ingersoll, A. P.
- Affiliations
- California Institute of Technology (US)
- Corresponding author
- Ingersoll, Andrew P.
- ORCID
- Ingersoll, Andrew P.
- Venue
- Science
- Published
- 1990-04-20
- Volume
- 248
- Issue
- 4953
- Pages
- 308-315
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2101776268
- Cited by
- 199
- References
- 69
- Citations by year
- 2026: 1 · 2025: 4 · 2024: 6 · 2023: 3 · 2022: 6 · 2021: 5 · 2020: 8 · 2019: 6 · 2018: 10 · 2017: 9 · 2016: 3 · 2015: 3 · 2014: 7 · 2013: 6 · 2012: 2
- FWCI
- 10.40
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Science (publishedVersion)
- PubMed (publishedVersion)
- CaltechAUTHORS (California Institute of Technology) (submittedVersion)
- Topics
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Astro and Planetary Science
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Stellar, planetary, and galactic studies
- Physical Sciences › Engineering › Computational Mechanics › Fluid Dynamics and Turbulent Flows
- Keywords
- Jovian planets, planetary atmospheres, atmospheric dynamics, jet stream, Great Red Spot, Jupiter, Saturn, Uranus, Neptune, cloud formation, planetary interiors, fluid dynamical model, space missions
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