Computer Science
Scientific paper
Jul 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999hst..prop.8363c&link_type=abstract
HST Proposal ID #8363
Computer Science
Hst Proposal Id #8363 Solar System
Scientific paper
We propose to analyze five imaging data sets of Saturn taken between 1990 and 1995 in an effort to compare the quiescent and disturbed atmosphere of Saturn. During this time interval, there were two large convective disturbances that appeared near Saturn's equatorial region. The data taken during the 1995 ring-plane crossings of Saturn provide a uniquely symmetric view of the northern and southern hemispheres in a quiescent state, relatively unobscured by Saturn's ring system. We will first model the vertical structure of the undisturbed atmosphere at latitudes known to exhibit little or no temporal variation using a multiple scattering adding/doubling radiative transfer code. We will use this general atmospheric model to predict what the same latitudes would look like in the 1990 WF/PC Saturn storm data. This will enable us to characterize the effect of deconvolution on the photometric integrity of the data set. Once we determine that the photometry of the 1990 Saturn storm data has been retained, we will use the doubling code to place limits on the vertical extent of the 1990 and 1994 storms. Finally, we will utilize a buoyancy analysis of the two systems to characterize the energy deposited into Saturn's atmosphere by these convective disturbances. This will yield new information about the Saturnian atmosphere that will prove valuable for the interpretation of the anticipated Cassini data sets.
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