File:Sublimation Of Ice In Martian Spring.jpg
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Summary
| Description |
English: In spring, the sublimation of the ice (going directly from ice to gas) causes a host of uniquely Martian phenomena. In this image streaks of dark basaltic sand have been carried from below the ice layer to form fan-shaped deposits on top of the seasonal ice. The similarity in the directions of the fans suggests that they formed at the same time, when the wind direction and speed was the same. They often form along the boundary between the dune and the surface below. |
| Date | |
| Source | HiRISE |
| Author | NASA/JPL/University of Arizona |
Local Mars time: 1:50 PM. Latitude (centred): 80.0 °. Longitude (East): 122.5 °. Range to target site: 319.0 km. Original image scale range: 31.9 cm/pixel (with 1 x 1 binning) so objects ~96 cm across are resolved. Map projected scale: 25 cm/pixel. Map projection: POLAR STEREOGRAPHIC. Emission angle: 2.6 °. Phase angle: 67.3 °. Solar incidence angle: 69 °, with the Sun about 21 ° above the horizon. Solar longitude: 29.7 °. Northern Spring.
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This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) |  |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 15:21, 23 March 2010 | | 2,560 × 1,920 (839 KB) | Originalwana | {{Information |Description={{en|1=In spring, the sublimation of the ice (going directly from ice to gas) causes a host of uniquely Martian phenomena. In this image streaks of dark basaltic sand have been carried |
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