Mars atmospheric phenomena during major dust storms, as measured at surface

Details Mars atmospheric phenomena during major dust storms, as measured at surface Mars atmospheric phenomena during major dust storms, as measured at surface

Jun 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979jgr....84.2821r&link_type=abstract

Journal of Geophysical Research, vol. 84, June 10, 1979, p. 2821-2829.

Mathematics

Logic

10

Dust Storms, Mars Atmosphere, Meteorological Parameters, Planetary Meteorology, Atmospheric Pressure, Atmospheric Temperature, Diurnal Variations, Viking Lander Spacecraft, Wind Measurement, Winter, Mars, Atmosphere, Dust Storms, Tides, Meteorology, Seasons, Annual Variations, Heating, Circulation, Dust, Temperatures, Viking 1 Lander, Pressure, Landing Sites, Viking 2 Lander

Scientific paper

Meteorological instrumentation aboard the Viking Mars Landers measures wind, temperature, and pressure. Two global dust storms occurred during northern autumn and winter, observed both by the orbiters and by the landers. The meteorological data from the landers has been analyzed for the period just before first storm arrival to just after second storm arrival, with the objectives of defining the meteorological phenomena during the storm period, determining those associated with storm and dust arrival, and evaluating the effects on synoptic conditions and the general circulation. Times of dust arrival over the sites could be defined fairly closely from optical and pressure (solar tide) data, and dust arrival was also accompanied by changes in diurnal temperature range, temperature maxima, and temperature minima. The arrivals of the storms at Viking Lander 1 were accompanied by significant increases in wind speed and pressure. No such changes were observed at Viking Lander 2. It is possible that surface material could have been raised locally at Viking Lander 1. Throughout the period except for the time following the second dust storm the synoptic picture at Viking Lander 2 was one of eastward moving cyclonic and anticyclonic systems. These disappeared following the second storm, a phenomenon which may be related to the storm.

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