File:ISS-38 Islands of the Four Mountains.jpg

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Summary

Description
English: Islands of the Four Mountains are featured in this image photographed by an Expedition 38 crew member on the International Space Station.
  • Morning sunlight illuminates the southeast-facing slopes of the islands in the photograph. The islands, part of the Aleutian Island chain, are actually the upper slopes of volcanoes rising from the sea floor; Carlisle, Cleveland, Herbert, and Tana. Carlisle and Herbert volcanoes are distinct cones and form separate islands. Cleveland volcano and the Tana volcanic complex form the eastern and western ends respectively of Chuginadak Island; a cloud bank obscures the connecting land mass in this image. Cleveland volcano (peak elevation 1,730 meters above sea level) is one of the most active in the Aleutian chain, with its most recent activity–eruptions and lava flow emplacement–taking place in May of 2013.
  • The northernmost of the islands, Carlisle volcano's (peak elevation 1,620 meters above sea level) last confirmed eruption occurred in 1828, with unconfirmed reports of activity in 1987. Herbert volcano (peak elevation 1,280 meters above sea level) to the southwest displays a classic cone structure breached by a two-kilometer wide summit caldera (upper right), but there are no historical records of volcanic activity. The easternmost peak, Tana (1,170 meters above sea level) is a volcanic complex comprised of two east-west trending volcanoes and associated younger cinder cones; like Herbert volcano, there is no historical record of activity at Tana.
  • A layer of low clouds and/or fog obscures much of the lower elevations of the islands and the sea surface, but the clouds also indicate the general airflow pattern around and through the islands. Directly to the south-southeast of Cleveland volcano a Von Karman vortex "street" is visible. Shadows cast by the morning sun extend from the peaks towards the northwest. The peaks of all of the Four Islands have snow cover; this is distinct from the clouds due to both higher brightness (white versus gray) and specific location on the landscape.
Date
Source https://www.flickr.com/photos/nasa2explore/11425212083/
Author NASA
Other versions
This image or video was catalogued by Johnson Space Center of the United States National Aeronautics and Space Administration (NASA) under Photo ID: ISS038-E-003612.

This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing.
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Licensing

Public domain
This file is in the public domain in the United States because it was created by the Image Science & Analysis Laboratory, of the NASA Johnson Space Center. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (NASA media use guidelines or Conditions of Use of Astronaut Photographs). Photo source: ISS038-E-003612.

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inception

15 November 2013

exposure time

0.0015625 second

focal length

400 millimetre

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Date/TimeThumbnailDimensionsUserComment
current18:48, 23 June 2014Thumbnail for version as of 18:48, 23 June 20144,256 × 2,832 (2.21 MB)Ras67losslessly cropped with Jpegcrop
19:59, 25 March 2014Thumbnail for version as of 19:59, 25 March 20144,256 × 2,832 (2.46 MB)Eddau~commonswikiSome light balancing
19:54, 25 March 2014Thumbnail for version as of 19:54, 25 March 20144,256 × 2,832 (886 KB)Ras67== {{int:filedesc}} == {{Information |Description={{en|1=Islands of the Four Mountains are featured in this image photographed by an Expedition 38 crew member on the International Space Station. * Morning sunlight illuminates the southeast-facing slope...
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