Atmospheric pressure data from the Viking landers

Atmospheric pressure data from the Viking landers
Atmospheric pressure data from the Viking landers Atmospheric pressure at the surface of Mars varies over the course of the year with the ebb and flow of the seasonal polar caps. The difference in pressure year-round between the two sites is due to their different elevations; Viking Lander 2 was about 900 meters lower-elevation than Viking Lander 1.

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