File:La Palma in Canary Islands - satellite image ISS017-E-06820 lrg.jpg
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Summary
[edit]DescriptionLa Palma in Canary Islands - satellite image ISS017-E-06820 lrg.jpg |
English: The Canary Islands, a group of volcanic islands, lie just off the west coast of Morocco in the Atlantic Ocean; at the northwest end of the chain is Isla de la Palma (pictured here). The island started forming as a submarine volcano approximately 3-4 million years ago. Subaerial (above the water surface) volcanic activity and island formation began around 2 million years ago. Most geologists believe the Canary Islands formed over the remnants of an old “hotspot” in the mantle, or mantle plume. The residual hotspot melting produced the magma that resulted in the Canary Island volcanoes. While there is little evidence to support the current existence of a mantle plume, volcanic activity is still taking place—the most recent lava flows on Isla de Palma were erupted in 1971. In addition to volcanic hazards, the Canary Islands are also subject to occasional dust storms originating in the Sahara Desert.
This astronaut photograph highlights volcanic landforms on the southern portion of Isla de la Palma. The elongated, 1,949-meter (6,394-foot) high Cumbre Vieja volcanic center is characterized by numerous cinder cones, craters, and gray lava flows that punctuate the green vegetated hills. To the north, the cities of El Paso and Los Llanos de Aridanes nestle against collapsed fragments of the Caldera Taburiente (image left), formed by massive slope failure of an older volcanic center to the north. Tourism is a major component of the local economy, but the high mountains and clear air of Isla de la Palma are also attractive to astronomers; several large observatories (not shown) are located along the northern edge of the Caldera Taburiente. Astronaut photograph ISS017-E-6820 was acquired May 13, 2008, with a Kodak 760C digital camera using a 400 mm lens, and is provided by the ISS Crew Earth Observations experiment. The image was taken by the Expedition 17 crew, and is provided by the Image Science & Analysis Laboratory, Johnson Space Center. The image in this article has been cropped and enhanced to improve contrast. Lens artifacts have been removed. The International Space Station Program supports the laboratory to help astronauts take pictures of Earth that will be of the greatest value to scientists and the public, and to make those images freely available on the Internet. Additional images taken by astronauts and cosmonauts can be viewed at the NASA/JSC Gateway to Astronaut Photography of Earth. Caption by William L. Stefanov, NASA-JSC. |
Date | |
Source | https://www.earthobservatory.nasa.gov/images/8827/isla-de-la-palma-canary-islands |
Author | International Space Station - Expedition 17 crew |
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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Annotations InfoField | This image is annotated: View the annotations at Commons |
Cumbre Vieja
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current | 21:00, 6 January 2022 | 1,080 × 810 (469 KB) | GeoWriter (talk | contribs) | Reverted to version as of 19:07, 30 March 2019 (UTC) - restore original version of image. Any German-language derivative image should be created as a new image with a different file name; the original image should not be lost | |
11:23, 27 December 2021 | 1,080 × 810 (461 KB) | Erledigt (talk | contribs) | plus Nord-Pfeil | ||
19:07, 30 March 2019 | 1,080 × 810 (469 KB) | GeoWriter (talk | contribs) | User created page with UploadWizard |
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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.
Camera manufacturer | Kodak |
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Camera model | DCS760C |
Exposure time | 1/500 sec (0.002) |
F-number | f/4.5 |
ISO speed rating | 100 |
Date and time of data generation | 09:07, 13 May 2008 |
Lens focal length | 400 mm |
Orientation | Normal |
Horizontal resolution | 240 dpi |
Vertical resolution | 240 dpi |
Software used | Adobe Photoshop CS3 Macintosh |
File change date and time | 15:08, 13 June 2008 |
Exposure Program | Shutter priority |
Exif version | 2.21 |
APEX shutter speed | 8.965784 |
APEX aperture | 4.33985 |
APEX exposure bias | 0 |
Maximum land aperture | 2.8 APEX (f/2.64) |
Metering mode | Multi-Spot |
Light source | Unknown |
Color space | sRGB |
Focal plane X resolution | 9 |
Focal plane Y resolution | 9 |
Focal plane resolution unit | 5 |
Exposure index | 100 |
Sensing method | One-chip color area sensor |
Image width | 1,080 px |
Image height | 810 px |
Serial number of camera | K760C-05168 |
Rating (out of 5) | 0 |
Date and time of digitizing | 11:08, 13 June 2008 |
Date metadata was last modified | 11:08, 13 June 2008 |