Koyaanismuuyaw - The hypothesis of a perennially dichotomous Triton

Details Koyaanismuuyaw - The hypothesis of a perennially dichotomous Triton Koyaanismuuyaw - The hypothesis of a perennially dichotomous Triton

Sep 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990georl..17.1757m&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 17, Sept. 1990, p. 1757-1760.

Physics

18

Dichotomies, Mass Transfer, Satellite Atmospheres, Satellite Surfaces, Triton, Planetary Geology, Volatility, Voyager 2 Spacecraft

Scientific paper

Voyager 2 observed that, at the height of a 'major' southern summer, the southern 'cap' of Triton extends nearly to the equator, and the northern temperature regions (where they can be seen) are relatively dark even though nitrogen frost should be accumulating at those latitudes. This observation suggests a hypothesis that there has been a net nonreversable flux of surficial volatiles on Triton from the northern hemisphere to the southern hemisphere over much of the satellite's history and up to the present. The north-south hemispherical albedo difference is permanent and overwhelms the seasonal effect on volatile transport. This hypothesis assumes that volatile erosion, transport, and deposition have been in the form of sublimation, advection, and precipitation.

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