The vertical structure of Jupiter's equatorial zonal wind above the cloud deck, derived using mesoscale gravity waves

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Bibliographische Detailangaben
Zeitschriftentitel:	Geophysical Research Letters
Personen und Körperschaften:	Watkins, C., Cho, J. Y‐K.
In:	Geophysical Research Letters, 40, 2013, 3, S. 472-476
Format:	E-Article
Sprache:	Englisch
veröffentlicht:	American Geophysical Union (AGU)
Schlagwörter:	General Earth and Planetary Sciences Geophysics

Details
Zusammenfassung:	<jats:p>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<jats:sup>‐1</jats:sup> 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.</jats:p>
Umfang:	472-476
ISSN:	0094-8276 1944-8007
DOI:	10.1029/2012gl054368