Mathematics – Logic
Scientific paper
Dec 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007agufm.p23b1357p&link_type=abstract
American Geophysical Union, Fall Meeting 2007, abstract #P23B-1357
Mathematics
Logic
5405 Atmospheres (0343, 1060), 5464 Remote Sensing, 5470 Surface Materials And Properties, 6281 Titan
Scientific paper
The Cassini orbiter's Visual & Infrared Mapping Spectrometer (VIMS) observes Titan's surface intensity at wavelengths where its methane-rich atmosphere is heavily absorbing and light is strongly scattering. Therefore, most analyses of Titan's surface that require use of the VIMS dataset (e.g., photoclinometry, geologic interpretation, spectral identification of surface materials, photometry) are impeded until a method to separate the atmospheric from the surface spectral signature of Titan is fully developed. In a previous work (Pitman et al. 2007,AAS-DPS meeting #39), we presented a fully-functional plane-parallel radiative transfer (RT) correction method with core components extended from Mars surface-atmospheric separation models that can be used for modeling and removing Titan's atmosphere for VIMS observations which are far from the limb. This "Mars/Titan" hybrid plane-parallel RT correction model includes inputs from Cassini-Huygens c. 2007, allows for vertical variation of major atmospheric properties, and incorporates newly released methane absorption coefficients and haze scattering properties derived from in situ measurements by the Huygens DISR team. In this work, we attempt to resolve the issue of atmospheric variation as a function of Titan's geographic coordinates by utilizing a spherical-shell radiative transfer model, originally used by Cassini engineers to model radiation flow through Titan's atmosphere and used by other Cassini teams for atmospheric correction as well. Trade-offs on when and where to use which type of model will be discussed. Work performed under contract to NASA and under appointment to the NASA Postdoctoral Program (ORAU).
Baines Kevin Hays
Bellucci Giancarlo
Bibring J.
Brown Harvey R.
Buratti Bonnie Jean
No associations
LandOfFree
Surface-Atmospheric Separation Models for Titan: Plane Parallel vs. Spherical Shell Radiative Transfer Solutions for Cassini VIMS Data does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Surface-Atmospheric Separation Models for Titan: Plane Parallel vs. Spherical Shell Radiative Transfer Solutions for Cassini VIMS Data, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Surface-Atmospheric Separation Models for Titan: Plane Parallel vs. Spherical Shell Radiative Transfer Solutions for Cassini VIMS Data will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1405862