Earth’s atmospheric pressure varies with altitude as well, but Mars has a seasonal variation in pressure that does not occur here on Earth. Mars is a planet that shows climate change on a large scale. On Olympus Mon’s peak, Its pressure is at 30 pascals (0.0044 psi) and in the lowest point of Hellas Planitia it … Although Mars' atmosphere used to be thick enough for water to run on the surface, today that water is either scarce or non-existent.

Because the "air" on Mars is so thin, it holds little of the heat that comes from the ground after it absorbs solar radiation. The atmosphere of Mars is the layer of gases surrounding Mars.It is primarily composed of carbon dioxide (95.32%), molecular nitrogen (2.6%) and argon (1.9%). Mars’ atmosphere is thinner compared to that of earth. On Mars, the range of atmospheric pressure varies from 0.030 kPa to over 1.155 kPa. 0.030 kPa pressure is recorded on the Olympus Mon and 1.155 kPa in Hellas Planitia. It also contains trace levels of water vapor, oxygen, carbon monoxide, hydrogen and other noble gases. We know that atmospheric pressure varies according to altitude, the same concept applied to Mars. The Atmosphere of Mars.

On average, it exerts only 6.1 millibars of surface pressure (Earth's average sea-level atmospheric pressure is 1,013.25 millibars) [source: NASA].

For these equations , , and correspond to the altitude, pressure, and temperature at the …

Alternatively, in Pascal, Mars average atmospheric pressure is 0.60 kPa. When the Viking spacecraft landed, the pressure sensor appeared to indicate that the atmospheric pressure on the surface of Mars was 0.09 PSI. The atmospheric pressure on Mars depends on how high or low the land is elevated. The Wikipedia gives two points of reference for the atmospheric pressure on Mars: Peak of Olympus Mons: 30 pascals (0.3 millibars) Hellas Planitia: 1,155 pascals (11.5 millibars) This is quite a range of values. The atmospheric pressure on the surface of Mars has dynamic range of 38.5 = 1155/30. It happens on Mars because the amount of CO2 gas in the atmosphere changes with the seasons. Before the Viking spacecraft landed on Mars in 1976, it was thought that the atmospheric pressure of Mars was somewhere between 0.4 PSI and 4.4 PSI.