Physics
Scientific paper
Oct 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011epsc.conf.1663i&link_type=abstract
EPSC-DPS Joint Meeting 2011, held 2-7 October 2011 in Nantes, France. http://meetings.copernicus.org/epsc-dps2011, p.1663
Physics
Scientific paper
We present an analysis of spatially resolved thermal emission from Saturn at 2 cm wavelength. Opacity at this wavelength is mainly due to ammonia vapor, so high brightness temperature (high TB) generally indicates low ammonia abundance and vice versa. The data were obtained by the Cassini radar instrument in passive mode, in which the signal is microwave thermal emission from the planet. The atmospheric model was developed for the Juno mission to Jupiter, and includes forward calculation of microwave radiances and inversions of radiances to get physical parameters of the atmosphere. The 2-cm map of Saturn provides a test of the model and reveals significant features of Saturn's atmosphere.
Gulkis Sam
Ingersoll P. A. P. A.
Janssen Michael A.
Laraia A.
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