Titan's Atmospheric Temperatures, Winds, and Composition

Details Titan's Atmospheric Temperatures, Winds, and Composition Titan's Atmospheric Temperatures, Winds, and Composition

May 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005sci...308..975f&link_type=abstract

Science, Volume 308, Issue 5724, pp. 975-978 (2005).

Computer Science

133

Scientific paper

Temperatures obtained from early Cassini infrared observations of Titan show a stratopause at an altitude of 310 kilometers (and 186 kelvin at 15°S). Stratospheric temperatures are coldest in the winter northern hemisphere, with zonal winds reaching 160 meters per second. The concentrations of several stratospheric organic compounds are enhanced at mid- and high northern latitudes, and the strong zonal winds may inhibit mixing between these latitudes and the rest of Titan. Above the south pole, temperatures in the stratosphere are 4 to 5 kelvin cooler than at the equator. The stratospheric mole fractions of methane and carbon monoxide are (1.6 +/- 0.5) × 10-2 and (4.5 +/- 1.5) × 10-5, respectively.

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