Quote:
Originally Posted by JayUtah
We can now know for sure that we are not looking at atmospheric dust in the other image.
Hilarious. Do you really claim that fluid-borne dust can behave in exactly, only one way?
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JayUtah,
Due to the uniform distribution of the micro-dunes and their location on top of the surface material they would be atmospheric. They were no dust storms on Mars on or before sol 81 when that image was taken. I believe due to the behavior of the material it is precipitants, Martian snow. The thermal profiles would rule out CO2 and that only leaves H2O
Atmospheric dust should behave the same. I have seen no data to suggest a change in atmospheric conditions. There are no migrating air masses on Mars because there is nothing to change the characteristics i.e. oceans. I believe that the global dust storms on Mars are just the same dust being kicked up year after year. I see no reason for the dust to behave any different from one event to another.
dfrank