Physics
Scientific paper
Dec 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004agufm.p42a..05t&link_type=abstract
American Geophysical Union, Fall Meeting 2004, abstract #P42A-05
Physics
5409 Atmospheres: Structure And Dynamics, 5445 Meteorology (3346), 5470 Surface Materials And Properties
Scientific paper
This study investigates the seasonal and spatial variation of the surface temperature and air temperature in the lower troposphere by a 3-dimensional general circulation model for different putative surface types (porous icy regolith, rock-ice mixture, hydrocarbon lakes) in an effort toconstrain the likely surface type and to understand the meteorology near the surface. For any viable surface type the surface temperature is unlikely to be constant through the year and should more or less vary seasonally and even diurnally, most likely by a few K. Unless the surface is liquid the lower troposphere gets convective near the summer pole where patchy tropospheric clouds have recently been observed. The predicted surface temperature is consistent with Voyager 1 data as long as the thermal inertia of the surface is relativelysmall and/or the surface albedo is low, while a dominance of water ice (high thermal inertia and high albedo) at the surface is unfavourable to reproduce the observation. The lake surface undergoes a larger seasonal variation than the solid surface because of the low albedo and low surface drag. During the Cassini mission the surface temperature ought to be asymmetric about the equator for any surface type, with a warmer south, unless there is a strong accumulation of haze near both poles.The air temperature in the lower troposphere exhibits a smaller latitudinal gradient than the surface and a pole-to-pole gradient due to the presence of a pole-to-pole Hadley circulation, indicating that the temperature within the planetary boundary layer may exhibit a vertical profile characteristic of season, location and scenario. There may be a shallow near-surface inversion layer in cold seasons and a shallow convective layer in warm seasons.
No associations
LandOfFree
Modelling Surface Temperatures on Titan by a General Circulation Model: Constraints on the Surface Type 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 Modelling Surface Temperatures on Titan by a General Circulation Model: Constraints on the Surface Type, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modelling Surface Temperatures on Titan by a General Circulation Model: Constraints on the Surface Type will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1453708