Propagation of tropospheric gravity waves into the upper atmosphere of Mars

Details Propagation of tropospheric gravity waves into the upper atmosphere of Mars Propagation of tropospheric gravity waves into the upper atmosphere of Mars

Sep 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009icar..203...28p&link_type=abstract

Icarus, Volume 203, Issue 1, p. 28-37.

Computer Science

8

Scientific paper

We study the propagation of gravity waves in the martian atmosphere using a linearized one-dimensional full-wave model. Calculations are carried out for atmospheric parameters characteristic of Mars Orbiter Laser Altimeter (on Mars Global Surveyor MGS) observations of apparent gravity waves in high latitude clouds and MGS radio occultation measurements of temperature variations with height suggestive of gravity wave activity. Waves that reach the thermosphere produce fluctuations in density comparable in amplitude with the density variations detected in Mars Odyssey aerobraking data. Gravity waves of modest amplitude are found to deposit momentum and generate significant heating and cooling in the martian atmosphere. The largest heating and cooling effects occur in the thermosphere, at altitudes between about 130 and 150 km, with heating occurring at the lower altitudes and cooling taking place above.

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