Physics
Scientific paper
May 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005agusm.p21b..08b&link_type=abstract
American Geophysical Union, Spring Meeting 2005, abstract #P21B-08
Physics
0343 Planetary Atmospheres (5405, 5407, 5409, 5704, 5705, 5707), 5405 Atmospheres: Composition And Chemistry, 5407 Atmospheres: Evolution, 5409 Atmospheres: Structure And Dynamics
Scientific paper
The Cassini flybys of Titan since late October, 2004 have provided data critical to better understanding its chemical and thermal structures. With this in mind, a 3-D TGCM of Titan's atmosphere from 600km to the exobase (~1450km) has been developed. This paper presents the first results from the partially operational code. Currently, the TTGCM includes static background chemistry (Lebonnois et al 2001, Vervack et al 2004) coupled with thermal conduction routines. The thermosphere remains dominated by solar EUV forcing and HCN rotational cooling, which is calculated by a full line-by-line radiative transfer routine along the lines of Yelle (1991) and Mueller-Wodarg (2000, 2002). In addition, an approximate treatment of magnetospheric heating is explored. This paper illustrates the model's capabilities as well as some initial results from the Titan Thermospheric General Circulation model that will be compared with both the Cassini INMS data and the model of Mueller-Wodarg (2000,2002).
Bell James M.
Bougher Stephen W.
Delahaye V.
Waite H. Jr. J..
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