Jupiter's Dynamic Atmosphere as Seen by Galileo and Cassini

Details Jupiter's Dynamic Atmosphere as Seen by Galileo and Cassini Jupiter's Dynamic Atmosphere as Seen by Galileo and Cassini

Nov 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001dps....33.0202v&link_type=abstract

American Astronomical Society, DPS Meeting #33, #02.02; Bulletin of the American Astronomical Society, Vol. 33, p.1024

Astronomy and Astrophysics

Astronomy

Scientific paper

The views of Jupiter's atmospheric dynamics as captured by the Galileo and Cassini spacecraft are highly complementary, offering very high spatial (25 km/pix) and temporal (1 hr resolutions as well as lower-res systematic (every 20 hr for 70 days) global coverage. Imaging data was acquired at wavelengths from UV through NIR, suitable for cloud tracking, cloud and haze vertical retrievals, and lightning and auroral studies. Galileo's major contributions, covered in previous DPS meetings, include revealing a class of water-rich, convective storm cells associated with lightning and cyclonic shear zones, providing evidence that the zonal jets may be maintained by moist convection. Galileo has also provided information on equatorial hot spots, cloud/haze composition and height, and cloud/haze coloration. Cassini images have been assembled into unique UV-VIS-NIR global movies, including the first movies of Jupiter's polar regions. Analysis to date has revealed that Jupiter's zonal jets and long-lived vortices extend to +/- 70 degrees latitude, in spite of the poles' highly disorganized appearance. Data from both spacecraft have spurred theoretical and numerical studies that aim to understand waves, hot spots, and convective storms, and the role of moist convection as an energy source to the large-scale circulation. The scientific community would benefit greatly from the rapid distribution of the Cassini Jupiter dataset to the wider scientific community, supported by a dedicated data analysis program.

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