HR: 14:40h
AN: P23D-05 INVITED     [Abstracts]
TI: Sounding Saturn's Temperatures, Winds, and Composition With Cassini CIRS: the Second Year
AU: * Flasar, F M
EM: f.m.flasar@nasa.gov
AF: NASA Goddard Space Flight Center, Code 693, Greenbelt, MD 20771 United States
AU: Achterberg, R K
EM: richard.k.achterberg@gsfc.nasa.gov
AF: Science Systems and Applications, Inc., 5900 Princess Garden Parkway, Suite 300, Lanham, MD 20706 United States
AU: Simon-Miller, A A
EM: simon@lepasm.gsfc.nasa.gov
AF: NASA Goddard Space Flight Center, Code 693, Greenbelt, MD 20771 United States
AU: Conrath, B J
EM: barney.j.conrath@gsfc.nasa.gov
AF: Cornell University, Department of Astronomy, Ithaca, NY 14853 United States
AU: Bjoraker, G L
EM: gordon.l.bjoraker@nasa.gov
AF: NASA Goddard Space Flight Center, Code 693, Greenbelt, MD 20771 United States
AB: We present global temperature maps of Saturn's southern hemisphere, with spatial resolution up to 2° latitude. Retrieved temperatures are generally consistent with previously reported results obtained at lower resolution during Cassini's approach to Saturn: The upper stratosphere shows an increase of ~20 K from the equator to the south pole. Winds at low latitudes show a general decay with height, but there now is an indication of a high-altitude jet at latitudes below 8° S. Stratospheric winds at mid latitudes show some structure on the scale of the cloud-top jets. Meridional profiles of several hydrocarbons and carbon dioxide have also been retrieved. Those for ethane and acetylene show a behavior similar to that observed on Jupiter, indicating the coupling of meridional transport and photochemical processes.
DE: 3346 Planetary meteorology (5445, 5739)
DE: 5704 Atmospheres (0343, 1060)
DE: 6275 Saturn
SC: Planetary Sciences [P]
MN: Fall Meeting 2005