Clouds, Clouds over Victoria |
Clouds, Clouds over Victoria |
Oct 9 2006, 11:46 AM
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Senior Member Group: Members Posts: 2823 Joined: 22-April 05 From: Ridderkerk, Netherlands Member No.: 353 |
With the images of clouds coming down, it is time for a new thread.
Here is just part of a panorama. Autostitch was not able to stitch more than those 2 images of 4 images. I think because there are not enough matching points. Maybe one of the other programms can do it better? Taken with the L0 navcam on Sol 962. jvandriel EDIT. I have done my math again and the Sol is not Sol 962 but Sol 950. I know there is a little program for finding the right Sol but i can't find it. jvandriel |
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Oct 18 2006, 09:44 AM
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#2
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Senior Member Group: Members Posts: 1870 Joined: 20-February 05 Member No.: 174 |
All information indicates these clouds are cirrus-type water ice clouds. Atmosphere temperatures are generally too high for CO2 dry-ice clouds, and the atmosphereic water vapor levels when these clouds are present are high enough (though very low) that clouds are expected to for.
CO2 clouds probably form during the polar night and were observed by the topography-profiling laser on Mars Global Surveyor. Viking Orbiters repeatedly saw an unusual cloud at very high altitude in a topographically fixed location they concluded was also probably CO2 ice. The cloud had very sharp, high contrast features indicating fast formation and sublimation and was at an altitude where temperatures marginally allowed CO2 ice. The topographic location was mid southern latitude where vertical oscillations of a "jet stream" was thought to be induced by big topographic features like the Hellas basin. |
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