Internal Waves and Tides in Stars and Giant Planets

Internal waves and tides in star-planet systems

EAS Publications Series ◽

10.1051/eas/1362010 ◽

2013 ◽

Vol 62 ◽

pp. 323-362 ◽

Cited By ~ 3

Author(s):

S. Mathis ◽

L. Alvan ◽

F. Remus

Keyword(s):

Internal Waves ◽

Waves And Tides

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Space‐time scales of sound‐speed perturbations observed in the Philippine Sea: Contributions from internal waves and tides, eddies, and spicy thermohaline structure.

The Journal of the Acoustical Society of America ◽

10.1121/1.3508535 ◽

2010 ◽

Vol 128 (4) ◽

pp. 2386-2386

Author(s):

John A. Colosi ◽

Brian Dushaw ◽

Rex K. Andrew ◽

Lora J. Van Effelen ◽

Matthew A. Dzieciuch ◽

...

Keyword(s):

Time Scales ◽

Internal Waves ◽

Sound Speed ◽

Space Time ◽

Thermohaline Structure ◽

Philippine Sea ◽

Waves And Tides

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Observations of Philippine Sea sound-speed perturbations, and the contributions from internal waves and tides, and spicy thermohaline structure

The Journal of the Acoustical Society of America ◽

10.1121/1.3655238 ◽

2011 ◽

Vol 130 (4) ◽

pp. 2556-2556

Author(s):

John Colosi ◽

Brian Dushaw ◽

Lora Van Uffelen ◽

Matt Dzieciuch ◽

Bruce Cornuelle ◽

...

Keyword(s):

Internal Waves ◽

Sound Speed ◽

Thermohaline Structure ◽

Philippine Sea ◽

Waves And Tides

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Internal waves and tides in shallow water

The Journal of the Acoustical Society of America ◽

10.1121/1.413188 ◽

1995 ◽

Vol 98 (5) ◽

pp. 2863-2863

Author(s):

Albert J. Plueddemann ◽

James F. Lynch

Keyword(s):

Shallow Water ◽

Internal Waves ◽

Waves And Tides

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Impact on acoustic propagation by internal waves and tides in the region of shelf and slope.

The Journal of the Acoustical Society of America ◽

10.1121/1.3249363 ◽

2009 ◽

Vol 126 (4) ◽

pp. 2285

Author(s):

Chi-Fang Chen ◽

Yung-Sheng Linus Chiu ◽

Yuan-Ying Chang

Keyword(s):

Internal Waves ◽

Acoustic Propagation ◽

Waves And Tides

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Wave propagation in semiconvective regions of giant planets

Monthly Notices of the Royal Astronomical Society ◽

10.1093/mnras/staa664 ◽

2020 ◽

Vol 493 (4) ◽

pp. 5788-5806

Author(s):

C M Pontin ◽

A J Barker ◽

R Hollerbach ◽

Q André ◽

S Mathis

Keyword(s):

Wave Propagation ◽

Internal Waves ◽

Spherical Body ◽

Giant Planets ◽

Small Scale ◽

Compositional Gradient ◽

Tidal Dissipation ◽

The Core ◽

Resonant Modes ◽

Diffusive Convection

ABSTRACT Recent observations of Jupiter and Saturn suggest that heavy elements may be diluted in the gaseous envelope, providing a compositional gradient that could stabilize ordinary convection and produce a stably stratified layer near the core of these planets. This region could consist of semiconvective layers with a staircase-like density profile, which have multiple convective zones separated by thin stably stratified interfaces, as a result of double-diffusive convection. These layers could have important effects on wave propagation and tidal dissipation that have not been fully explored. We analyse the effects of these layers on the propagation and transmission of internal waves within giant planets, extending prior work in a local Cartesian model. We adopt a simplified global Boussinesq planetary model in which we explore the internal waves in a non-rotating spherical body. We begin by studying the free modes of a region containing semiconvective layers. We then analyse the transmission of internal waves through such a region. The free modes depend strongly on the staircase properties, and consist of modes with both internal and interfacial gravity wave-like behaviour. We determine the frequency shifts of these waves as a function of the number of steps to explore their potential to probe planetary internal structures. We also find that wave transmission is strongly affected by the presence of a staircase. Very large wavelength waves are transmitted efficiently, but small-scale waves are only transmitted if they are resonant with one of the free modes. The effective size of the core is therefore larger for non-resonant modes.

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