Inference of dust opacities for the 1977 Martian great dust storms from Viking Lander 1 pressure data

Details Inference of dust opacities for the 1977 Martian great dust storms from Viking Lander 1 pressure data Inference of dust opacities for the 1977 Martian great dust storms from Viking Lander 1 pressure data

Jan 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981icar...45..202z&link_type=abstract

Icarus, vol. 45, Jan. 1981, p. 202-215.

Computer Science

50

Atmospheric Models, Dust Storms, Eddington Approximation, Mars Atmosphere, Mars Surface, Radiative Heat Transfer, Atmospheric Pressure, Diurnal Variations, Imagery, Viking Lander 1, Mars, Dust, Storms, Opacity, Viking 1 Lander, Pressure, Longitude, Data, Amplitude, Tidal Effects, Heating, Thermal Effects, Harmonics, Atmosphere, Surface, Models, Parameters, Diurnal Variations

Scientific paper

The tidal heating components for the dusty Martian atmosphere are computed based on dust optical parameters estimated from Viking Lander imaging data, and used to compute the variation of the tidal surface pressure components at the Viking Lander sites as a function of season and the total vertical extinction optical depth of the atmosphere. An atmospheric tidal model is used which is based on the inviscid, hydrostatic primitive equations linearized about a motionless basic state the temperature of which varies only with height, and the profiles of the tidal forcing components are computed using a delta-Eddington approximation to the radiative transfer equations. Comparison of the model results with the observed variations of surface pressure and overhead dust opacity at the Viking Lander 1 site reveal that the dust opacities and optical parameters derived from imaging data are roughly representative of the global dust haze necessary to reproduce the observed surface pressure amplitudes, with the exception of the model-inferred asymmetry parameter, which is smaller during the onset of a great storm. The observed preferential enhancement of the semidiurnal tide with respect to the diurnal tide during dust storm onset is shown to be due primarily to the elevation of the tidal heating source in a very dusty atmosphere.

Affiliated with

Also associated with

No associations

Rating

Inference of dust opacities for the 1977 Martian great dust storms from Viking Lander 1 pressure data does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Inference of dust opacities for the 1977 Martian great dust storms from Viking Lander 1 pressure data, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Inference of dust opacities for the 1977 Martian great dust storms from Viking Lander 1 pressure data will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1053654