Physics
Scientific paper
Aug 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004icar..170..443r&link_type=abstract
Icarus, Volume 170, Issue 2, p. 443-462.
Physics
47
Titan, Haze, Dynamics, Photometry
Scientific paper
We have developed a coupled general circulation model of Titan's atmosphere in which the aerosol haze is treated with a microphysical model and is advected by the winds. The radiative transfer accounts for the non uniform haze distribution and, in turn, drives the dynamics. We analyze the GCM results, especially focusing on the difference between a uniform haze layer and a haze layer coupled to the dynamics. In the coupled simulation the aerosols tend to accumulate at the poles, at latitudes higher than +/-60°. During winter, aerosols strongly radiate at thermal infrared wavelengths enhancing the cooling rate near the pole. Since this tends to increase the latitudinal gradients of temperature the direct effect of this cooling excess, in contrast to the uncoupled haze case, is to increase the strength of the meridional cells as well as the strength of the zonal winds and profile. This is a positive feedback of the haze on dynamics. The coupled model reproduces observations about the state of the atmosphere better than the uniform haze model, and in addition, the northern polar hood and the detached haze are qualitatively reproduced.
Hourdin Fréderic
Luz David
McKay Chris P.
Rannou Philippe
No associations
LandOfFree
A coupled dynamics-microphysics model of Titan's atmosphere 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 A coupled dynamics-microphysics model of Titan's atmosphere, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A coupled dynamics-microphysics model of Titan's atmosphere will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1088407