Mathematics
Scientific paper
Dec 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992lpico.789q..77n&link_type=abstract
In Lunar and Planetary Inst., Papers Presented to the International Colloquium on Venus p 77 (SEE N93-14288 04-91)
Mathematics
Cratering, Fallout, Mathematical Models, Planetary Craters, Planetary Geology, Venus Surface, Wind Effects, Zonal Flow (Meteorology), Deposition, Particles, Venus Atmosphere
Scientific paper
Many parabolic-shaped extended impact crater-related features have been found in Magellan synthetic aperture radar and emissivity data covering much of the surface of Venus. They are oriented east-west with the apex to the east and the impact crater located just west of the apex. A model for the formation of the parabolic features is developed based on the injection of small particles into the upper atmosphere at the time of impact, and their subsequent transport to the west by the east-west zonal winds. Fallout times from 50 km in the Venus atmosphere for particles of this size are about two hours, allowing westerly drifts of several hundred kilometers for zonal winds of 50 to 100 m s-1.
Campbell Don B.
Jones Michael E.
Newman William I.
Stacy Nicholas John Sholto
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