Occultation of
Geminorum by Mars: Evidence for Atmospheric Tides?
J. L. ELLIOT 1,
R. G. FRENCH 1,
E. DUNHAM 1,
P. J. GIERASCH 1,
J. VEVERKA 1,
C. CHURCH 1, and
CARL SAGAN 1
1 Laboratory for Planetary Studies, Cornell University, Ithaca, New York 14853
Temperature profiles of the martian atmosphere have been derived from airborne observations of the 8 April 1976 occultation of
Geminorum. Within the altitude range from 50 to 90 kilometers, these profiles show peak-to-peak variations of 35°K with a vertical scale of 20 kilometers and represent evidence for strong tides in the martian atmosphere. However, more information is necessary to conclusively rule out a radiative explanation for the temperature variations.
Submitted on September 10, 1976
Revised on October 26, 1976