The vertical structure of Jupiter's equatorial zonal wind above the cloud deck, derived using mesoscale gravity waves
Article first published online: 13 FEB 2013
©2012. American Geophysical Union. All Rights Reserved.
Geophysical Research Letters
Volume 40, Issue 3, pages 472–476, 16 February 2013
How to Cite
2013), The vertical structure of Jupiter's equatorial zonal wind above the cloud deck, derived using mesoscale gravity waves, Geophys. Res. Lett., 40, 472–476, doi:10.1029/2012GL054368., and (
- Issue published online: 3 APR 2013
- Article first published online: 13 FEB 2013
- Manuscript Accepted: 23 NOV 2012
- Manuscript Received: 7 NOV 2012
- Science and Technology Facilities Council. Grant Number: PP/E001858/1
 Data from the Galileo Probe, collected during its descent into Jupiter's atmosphere, is used to obtain a vertical profile of the zonal wind from ~0.5 bar (upper troposphere) to ~0.1 µbar (lower thermosphere) at the probe entry site. This is accomplished by constructing a map of gravity wave Lomb-Scargle periodograms as a function of altitude. The profile obtained from the map indicates that the wind speed above the visible cloud deck increases with height to ~150 m s-1 and then levels off at this value over a broad altitude range. The location of the turbopause, as a region of wide wave spectrum, is also identified from the map. In addition, a cross-equatorial oscillation of a jet, which has previously been linked to the QQO in the stratosphere, is suggested by the profile.