Some constraints on a greenhouse atmosphere for Triton

Details Some constraints on a greenhouse atmosphere for Triton Some constraints on a greenhouse atmosphere for Triton

Oct 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988georl..15.1315n&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 15, Oct. 1988, p. 1315-1318.

Physics

6

Greenhouse Effect, Satellite Atmospheres, Triton, Constraints, Optical Thickness, Thermal Emission

Scientific paper

The authors explore the likelihood of a thick atmosphere around Neptune's satellite Triton. The infrared optical depth in the grey atmosphere approximation is computed for a range of possible surface compositions, albedos, and gravities. If molecular nitrogen and/or hydrogen are present, a self-sustaining optically-thick atmosphere is possible. As such an atmosphere develops, the reradiation of insolation tends toward a uniform global distribution, which provides a strong negative feedback. Bimodal behavior of Triton's atmosphere is therefore possible as seasonal effects and volatile distribution alter the distribution of thermal emission.

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