Mars Has Bizarre Dunes Thanks to its Low Atmospheric Pressure and Strange Winds - by ET_Exists
, an international team of researchers led by Stanford University used artificial intelligence to examine the formation of sand ripples and sand dunes of two distinct sizes on Mars. These formations might help scientists better understand Mars’ atmospheric history through examining the fossilized forms of these aeolian structures using statistical analyses.far less atmospheric pressure
than Earth, on the order of 6.518 millibars compared to Earth’s 1013.5 millibars , which is 0.6% of Earth’s atmospheric pressure. Two commonly observed formations of windblown sand are small crests known as “impact ripples” that result from sand grains impacting sand mounds, and the second form are much larger sand dunes that can span for several kilometers .
The reason why Mars’ atmospheric history could be further examined from this study could be due to both an exact and consistent mathematical relationship between the lack of atmospheric pressure on Mars and the size of the windblown sand dunes and sand ripples on the Red Planet, which have been observed to occur at all sizes except for the smallest dimensions.
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