Other
Scientific paper
Nov 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010georl..3722204g&link_type=abstract
Geophysical Research Letters, Volume 37, Issue 22, CiteID L22204
Other
3
Planetary Sciences: Solar System Objects: Saturn, Planetary Sciences: Fluid Planets: Atmospheres (0343, 1060), Planetary Sciences: Fluid Planets: Meteorology (3346)
Scientific paper
Here we report the discovery at the upper cloud level of an extremely narrow and strong prograde jet, centered in the middle of the broad equatorial jet. Measurements from images obtained by the Cassini Imaging Science Subsystem (ISS) show that the jet reaches 430 ms-1 ± 16 m s-1 with a peak speed difference of 180 ms-1 relative to nearby latitudes at 60 mbar and 390 ms-1 ± 23 m s-1 at depths > 500 mbar spanning ˜6° about the equator . Contrarily to what is observed in other latitudes, its velocity increases with altitude. This jet is the first of its kind to be discovered on any of the giant planets, and adds to our three-dimensional understanding of Saturn's stratospheric wind field.
Garcia-Melendo Enrique
Hueso Ricardo
Legarreta Jon
Perez-Hoyos Santiago
Sanchez-Lavega Agustín.
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