Titan - Far-infrared and microwave remote sensing of methane clouds and organic haze

Details Titan - Far-infrared and microwave remote sensing of methane clouds and organic haze Titan - Far-infrared and microwave remote sensing of methane clouds and organic haze

Nov 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984icar...60..236t&link_type=abstract

Icarus (ISSN 0019-1035), vol. 60, Nov. 1984, p. 236-259.

Computer Science

33

Clouds, Haze, Methane, Remote Sensing, Satellite Atmospheres, Titan, Atmospheric Composition, Brightness Temperature, Infrared Spectra, Limb Darkening, Microwave Spectra, Radiative Transfer

Scientific paper

It is shown that Titan's surface and plausible atmospheric thermal opacity sources - gaseous N2, CH4, and H2, CH4 cloud, and organic haze - are sufficient to match available Earth-based and Voyager observations of Titan's thermal emission spectrum. Matching computed spectra to the observed Voyager IRIS spectra at 7.3 and 52.7° emission angles yields the following abundances and locations of opacity sources: CH4 clouds: 0.1 g cm-2 at a planetocentric radius of 2610 - 2625 km, 0.3 g cm-2 at 2590 - 2610 km, total 0.4±0.1 g cm-2 above 2590 km; organic haze: 4±2×10-6g cm-2 above 2750 km; tropospheric H2: 0.3±0.1 mol%.

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