The Planetary Science Journal (Jan 2024)

Three-dimensional Atmospheric Dynamics of Jupiter from Ground-based Doppler Imaging Spectroscopy in the Visible

  • Francois-Xavier Schmider,
  • Patrick Gaulme,
  • Raúl Morales-Juberías,
  • Jason Jackiewicz,
  • Ivan Gonçalves,
  • Tristan Guillot,
  • Amy A. Simon,
  • Michael H. Wong,
  • Thomas Underwood,
  • David Voelz,
  • Cristo Sanchez,
  • Riley DeColibus,
  • Sarah A. Kovac,
  • Sean Sellers,
  • Doug Gilliam,
  • Patrick Boumier,
  • Thierry Appourchaux,
  • Julien Dejonghe,
  • Jean Pierre Rivet,
  • Steve Markham,
  • Saburo Howard,
  • Lyu Abe,
  • Djamel Mekarnia,
  • Masahiro Ikoma,
  • Hidekazu Hanayama,
  • Bun’ei Sato,
  • Masanobu Kunitomo,
  • Hideyuki Izumiura

DOI
https://doi.org/10.3847/PSJ/ad3066
Journal volume & issue
Vol. 5, no. 4
p. 100

Abstract

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We present three-dimensional (3D) maps of Jupiter’s atmospheric circulation at cloud-top level from Doppler-imaging data obtained in the visible domain with JIVE, the second node of the JOVIAL network, which is mounted on the Dunn Solar Telescope at Sunspot, New Mexico. We report on 12 nights of observations between 2018 May 4 and May 30, representing a total of about 80 hr. First, the average zonal wind profile derived from our data is compatible with that derived from cloud-tracking measurements performed on Hubble Space Telescope images obtained in 2018 April from the Outer Planet Atmospheres Legacy program. Second, we present the first ever 2D maps of Jupiter’s atmospheric circulation from Doppler measurements. The zonal velocity map highlights well-known atmospheric features, such as the equatorial hot spots and the Great Red Spot (GRS). In addition to zonal winds, we derive meridional and vertical velocity fields from the Doppler data. The motions attributed to vertical flows are mainly located at the boundary between the equatorial belts and tropical zones, which could indicate active motion in theses regions. Qualitatively, these results compare well to recent Juno data that have unveiled the 3D structure of Jupiter’s wind field. To the contrary, the motions attributed to meridional circulation are very different from what is obtained by cloud tracking, except at the GRS. Because of limitations with data resolution and processing techniques, we acknowledge that our measurements of the vertical or meridional flows of Jupiter are still to be confirmed.

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