Infrared properties of Titan's clouds and aerosols

Details Infrared properties of Titan's clouds and aerosols Infrared properties of Titan's clouds and aerosols

Apr 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992esasp.338..191s&link_type=abstract

In ESA, Symposium on Titan p 191-195 (SEE N92-32348 23-91)

Astronomy and Astrophysics

Astronomy

2

Aerosols, Astronomical Spectroscopy, Clouds (Meteorology), Infrared Astronomy, Infrared Spectroscopy, Satellite Atmospheres, Titan, Condensates, Infrared Interferometers, Voyager Project

Scientific paper

Using Voyager 1 Infrared Interferometer Spectrometer (IRIS) data, the infrared properties of Titan's north polar hood continuum were deduced. Stratospheric opacities were found to increase monotonically with wavenumber between 250 and 600/cm. The increase becomes more extreme with decreasing altitude; this behavior is consistent with a photochemical aerosol overlying layers of condensated organics lower down. Stratospheric optical thicknesses of order 0.1 were found at 600/cm, which became smaller as the wavelength decreased. An aerosol mass mixing ratio approximately 6 x 10 exp -8 and a mass flux approximately 10 exp -14 g/sq cm/s was inferred at 160 km. The column abundance for condensed C4N2 was found to exceed that for the vapor by a factor of 30 or more. An upper limit of 4 x 10 exp -10 was inferred for the mole fraction of gaseous C4N2.

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