Physics
Scientific paper
Jan 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991icar...89..147k&link_type=abstract
Icarus (ISSN 0019-1035), vol. 89, Jan. 1991, p. 147-151.
Physics
2
Mars Atmosphere, Satellite Observation, Solar Activity Effects, Solar Eclipses, Solar Flares, Iue, Solar Physics, Temperature Profiles, Mars, Atmosphere, Spacecraft Observations, Phobos 2 Mission, Occultations, Density, Temperature, Altitude, Heating, Flux, Cooliong, Turbulence, Radiometry, Equipment, Rf-15 Instrument, X-Ray Spectrometer, Parameters, Calculations, Period, Amplitude, Heat Flux
Scientific paper
Density and temperature profiles have been obtained for the Martian atmosphere's 80-130 km altitudes through occultation measurements conducted during two solar flare events. The profile thus obtained during very high solar activity indicated a rapid temperature increase in the 110-125 km altitude region; this is due to the downward heat flux, and in turn results in a solar EUV heating efficiency of the order of 0.1. The 85-110 km structure of this profile may be explained in terms of a temperature wave and/or a combination of the eddy cooling and turbulent heating of the atmosphere.
Farnik Frantisek
Krasnopolsky Vladimir A.
Likin O. B.
Valnicek Boris
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