Fred:<a href="http://www.nasa.gov/missio...

Fred:
The newer release of Mars night-time clouds appear far closer and more dense than the day-time clouds I viewed early on in the mission. I presume most of the cloud mass is water, water/ice, rather than CO2.
Can we look forward to CO2 fog banking in the arctic night-time right at the ground level around Phoenix? Water frost driven by the colder mass of CO2 should keep the surface clear of water vapor shouldn't it? I was watching my daily 2 liter bottle of sub-freezing soda pop establish a heavy water frost covering last night, and the frost was thick enough to make the label disappear. In the bottle was a compressed CO2 driven cold well, carrying the water vapor from the air like a sponge soaking up liquid water. The water vapor on Earth has some nucleated liquid water content with the actual vapor. You would know better about such details as that than I.
The bottle upon my opening it, still sub-freezing, began the cascading water-ice formation descending towards the bottom from the top, till nearly all the water mass was an ice slush. I banged the bottom very slightly, and the usual cryovolcano of liquid water erupted from the ice mass as it continued to expand and pressurize the bottle(fixed volume) container.
I had driven the vapor to frost ice cover at the surface, then a impact drove the cryovolcano to flow for many minutes vertically across a table and onto the floor where the water viscosity transferred all the supersaturated mineral-laden liquids to a paper thin layer of liquid cover.
Mars in a 2 liter bottle once again. Day after day.
I'll try to participate in your weather topics.