Mathematics – Logic
Scientific paper
Mar 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981georl...8..245c&link_type=abstract
Geophysical Research Letters, vol. 8, Mar. 1981, p. 245-248.
Mathematics
Logic
18
Annual Variations, Mars (Planet), Planetary Meteorology, Planetary Rotation, Viking Lander Spacecraft, Wind Variations, Carbon Dioxide, Density Distribution, Liouville Equations, Mars Atmosphere, Moments Of Inertia, Momentum Transfer, Polar Caps, Pressure Distribution, Mars, Rotation, Seasons, Meteorology, Winds, Carbon Dioxide, Cycles, Atmosphere, Polar Regions, Moments Of Inertia, Amplitude, Pressure, Data, Mathematical Models, Viking Lander, Analysis, Acceleration
Scientific paper
The meteorologically induced seasonal variations in the rotation rate of Mars, which are mainly the result of an exchange of CO2 between the atmosphere and polar caps through a variation of the polar moment of inertia, are investigated. Viking pressure data and zonal wind models are used to predict annual and semi-annual cycles in the relative rotation rate of Mars, with corresponding Martian day length seasonal changes of 0.17 ms and 0.09 ms. It is concluded that between the fall equinox and winter solstice of the Martian northern hemisphere, the maximum length of day change is 0.44 ms.
Balmino Georges
Cazenave Anny
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