ISS020-E-21140
| NASA Photo ID | ISS020-E-21140 |
| Focal Length | 800mm |
| Date taken | 2009.07.15 |
| Time taken | 17:53:04 GMT |
Resolutions offered for this image:
1000 x 709 pixels 540 x 383 pixels 720 x 480 pixels 4256 x 2913 pixels 640 x 438 pixels
1000 x 709 pixels 540 x 383 pixels 720 x 480 pixels 4256 x 2913 pixels 640 x 438 pixels
Cloud masks available for this image:
Spacecraft nadir point: 30.1° N, 14.6° W
Photo center point: 28.3° N, 16.6° W
Photo center point by machine learning:
Photo center point: 28.3° N, 16.6° W
Photo center point by machine learning:
Nadir to Photo Center: Southwest
Spacecraft Altitude: 188 nautical miles (348km)
Country or Geographic Name: | CANARY ISLANDS |
Features: | TEIDE VOLCANO, CALDERA, LAVA FLOWS, RAVINES |
| Features Found Using Machine Learning: | |
Cloud Cover Percentage: | 10 (1-10)% |
Sun Elevation Angle: | 25° |
Sun Azimuth: | 281° |
Camera: | Nikon D3 Electronic Still Camera |
Focal Length: | 800mm |
Camera Tilt: | 41 degrees |
Format: | 4256E: 4256 x 2832 pixel CMOS sensor, 36.0mm x 23.9mm, total pixels: 12.87 million, Nikon FX format |
Film Exposure: | |
| Additional Information | |
| Width | Height | Annotated | Cropped | Purpose | Links |
|---|---|---|---|---|---|
| 1000 pixels | 709 pixels | No | Yes | Earth From Space collection | Download Image |
| 540 pixels | 383 pixels | Yes | Yes | Earth From Space collection | Download Image |
| 720 pixels | 480 pixels | Yes | Yes | NASA's Earth Observatory web site | Download Image |
| 4256 pixels | 2913 pixels | No | No | Download Image | |
| 640 pixels | 438 pixels | No | No | Download Image |
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Image Caption: Teide Volcano, Canary Islands, Spain
This detailed astronaut photograph features two stratovolcanoes--Pico de Teide and Pico Viejo--located on Tenerife Island, part of the Canary Islands of Spain. Stratovolcanoes are steep-sided, typically conical volcanoes formed by interwoven layers of lava and fragmented rock material from explosive eruptions. Pico de Teide has a relatively sharp peak, whereas an explosion crater forms the summit of Pico Viejo. The two stratovolcanoes formed within an even larger volcanic structure known as the Las Canadas caldera. A caldera is a large collapse depression usually formed when a major eruption completely empties the magma chamber underlying a volcano. The last eruption of Teide occurred in 1909.
Sinuous flow levees marking individual lava flows are perhaps the most striking volcanic features visible in the image. Flow levees are formed when the outer edges of a channelized lava flow cool and harden while the still-molten interior continues to flow downhill. Numerous examples radiate outwards from the peaks of both Pico de Teide and Pico Viejo. Brown to tan overlapping lava flows and domes are visible to the east-southeast of the Teide stratovolcano. Increased seismicity, carbon dioxide emissions, and fumarolic (gas and smoke) activity within the Las Canadas caldera and along the northwestern flanks of the volcano were observed in 2004. Monitoring of the volcano to detect renewal of activity is ongoing.
This detailed astronaut photograph features two stratovolcanoes--Pico de Teide and Pico Viejo--located on Tenerife Island, part of the Canary Islands of Spain. Stratovolcanoes are steep-sided, typically conical volcanoes formed by interwoven layers of lava and fragmented rock material from explosive eruptions. Pico de Teide has a relatively sharp peak, whereas an explosion crater forms the summit of Pico Viejo. The two stratovolcanoes formed within an even larger volcanic structure known as the Las Canadas caldera. A caldera is a large collapse depression usually formed when a major eruption completely empties the magma chamber underlying a volcano. The last eruption of Teide occurred in 1909.
Sinuous flow levees marking individual lava flows are perhaps the most striking volcanic features visible in the image. Flow levees are formed when the outer edges of a channelized lava flow cool and harden while the still-molten interior continues to flow downhill. Numerous examples radiate outwards from the peaks of both Pico de Teide and Pico Viejo. Brown to tan overlapping lava flows and domes are visible to the east-southeast of the Teide stratovolcano. Increased seismicity, carbon dioxide emissions, and fumarolic (gas and smoke) activity within the Las Canadas caldera and along the northwestern flanks of the volcano were observed in 2004. Monitoring of the volcano to detect renewal of activity is ongoing.
