Computer Science – Sound
Scientific paper
Dec 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007agufm.p21d..02f&link_type=abstract
American Geophysical Union, Fall Meeting 2007, abstract #P21D-02
Computer Science
Sound
0350 Pressure, Density, And Temperature, 6281 Titan
Scientific paper
The four radio occultations during the Cassini prime mission have provided soundings in northern winter at eight mid- and high-latitude locations: 74 S, 69 S, 53 S, 34 S, 33 S, 31 S, 53 N, and 73 N. In the lower troposphere, the meridional contrast in temperature is muted, and temperatures in the lowest two kilometers differ by only 1.5 K, except for the northernmost sounding, which is colder by another ~1-1.5 K. Near 30 S, the lapse rates of the retrieved temperature profiles near the surface are nearly adiabatic, but at higher latitudes the profiles are more stably stratified in both hemispheres. At high northern latitudes the profiles exhibit stable inversions above the surface. We discuss the effect of the methane distribution on the retrieved temperatures and interpret the observed thermal structure in terms of the atmosphere's radiative response and surface-atmospheric exchange.
Flasar Michael F.
French Richard G.
Kliore Arvydas J.
Marouf Essam A.
McGhee Colleen Anne
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