File:Ambrym ali 2012348 lrg.jpg
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[edit]DescriptionAmbrym ali 2012348 lrg.jpg |
English: he Advanced Land Imager (ALI) aboard the Earth Observing-1 (EO-1) satellite captured this natural-color image of activity within Ambrym’s caldera on December 13, 2012. Twin lava lakes on Ambrym’s Marum cone are visible. The larger of the two, which is gray, lies within Mbuelesu crater; to the southwest, Mbuelesu has a secondary crater that contains a pinkish-gray lava lake.
Active lava lakes often have a partly-solid, shiny gray crust that forms as the atmosphere cools their surfaces. The crust is rarely more than 5 to 30 centimeters (2 to 12 inches) thick and usually lasts just a few hours because it continually circulates, breaks, and sinks into the molten lava below. The pink color of the smaller lake suggests that surface was especially agitated and the crust was absent or in the process of sinking back into the lake. |
Date | |
Source | http://visibleearth.nasa.gov/view.php?id=80014 |
Author | Robert Simmon |
Licensing
[edit]Public domainPublic domainfalsefalse |
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 | |
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current | 12:54, 6 March 2013 | 5,097 × 2,550 (2.25 MB) | C messier (talk | contribs) | User created page with UploadWizard |
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Width | 6,031 px |
Height | 10,741 px |
Bits per component |
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Compression scheme | LZW |
Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 100 dpi |
Vertical resolution | 100 dpi |
Data arrangement | chunky format |
Software used | Adobe Photoshop CS6 (Macintosh) |
File change date and time | 11:16, 14 December 2012 |
Color space | sRGB |
Date and time of digitizing | 03:36, 14 December 2012 |
Date metadata was last modified | 06:16, 14 December 2012 |
Unique ID of original document | xmp.did:6A6B9E44812068118C14D1802A1DC1CD |