File:The Land of Ice and Fire (MODIS 2021-08-01).jpg
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Summary
[edit]DescriptionThe Land of Ice and Fire (MODIS 2021-08-01).jpg |
English: On July 30, 2021, the Moderate Resolution Imaging Spectroradiometer (MODIS) on board NASA’s Aqua satellite acquired a true-color image of Iceland on a warm summer’s day. Although low cloud shrouds the southern shores and fills the low-lying northern fjords and valleys, the deep greens of summer vegetation, tans of rugged rock, and pristine white of snow-capped highlands, glaciers, and ice caps are easily viewed in this image.
The National Snow and Ice Data Center (NSIDC) explains that ice caps are miniature ice sheets. Like icefields, ice caps cover less than 50,000 square kilometers (19,300 square miles). Unlike icefields, ice caps completely blanket the underlying land features and are domes that spread in all directions. Iceland’s four permanent ice caps are Langjokull and Hofsjokull in the interior west, Myrdalsjokull on the southern coast, and Vatnajokull on the eastern coast. Vatnajokull is the largest of the four and it covers three active volcanoes—just one reason that Iceland has been called the “land of ice and fire”. Iceland sits on a mid-ocean ridge at the intersection of two tectonic plates. The North American and Eurasian tectonic plates cross the island from south to north, and are slowly pulling apart. As the plates retreat, magma from deep in the Earth wells up to the surface, creating lava fields and volcanic activity. There are about 30 active volcanoes on Iceland today. The most recent eruption occurred on the Reykjanes peninsula in mid-March 2021 when the Fagradalsfjall volcano erupted after lying dormant for 800 years. The on-going eruption can be seen in the image as a bright red hot spot covered with thin cloud located on the southwestern side of the island. The Fagradalsfjall eruption is primarily effusive, with lava flowing from fissures rather than being violently ejected. On July 26, the University of Iceland’s Institute of Earth Sciences published a report on the ongoing eruption that gave an estimate of the total lava erupted from all vents so far measures about 96.1 cubic meters. |
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Date | Taken on 30 July 2021 | ||
Source |
The Land of Ice and Fire (direct link)
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Author | MODIS Land Rapid Response Team, NASA GSFC |
This media is a product of the Aqua mission Credit and attribution belongs to the mission team, if not already specified in the "author" row |
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 | 17:36, 30 January 2024 | 4,946 × 3,670 (6.79 MB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of http://modis.gsfc.nasa.gov/gallery/images/image08012021_250m.jpg via Commons:Spacemedia |
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Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Width | 7,872 px |
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Height | 6,544 px |
Bits per component |
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Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | Adobe Photoshop 22.1 (Macintosh) |
File change date and time | 15:50, 30 July 2021 |
Exif version | 2.31 |
Color space | Uncalibrated |
Unique ID of original document | 4706AB770E68AA68068670E0421BB3CF |
Date and time of digitizing | 11:49, 30 July 2021 |
Date metadata was last modified | 11:50, 30 July 2021 |