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File:ISS046-E-3699.JPG

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Summary[edit]

Description
English: While orbiting over the Gulf of Alaska and moving toward the west coast of the United States, an astronaut aboard the International Space Station shot this panorama looking north into the snow-covered landscape of Canada’s Coast Mountains, the Canadian Rockies, and Vancouver Island. Numerous dark valleys contrast with the brilliant snow, even in the low light of a northern winter. The valleys were eroded by glaciers repeatedly in various ice ages over the past 2 to 3 million years.

Low stratus clouds mask the 250-kilometer (150-mile) wide plateau between the mountain ranges. Above these clouds, a long cloud band slants across the image. Meteorologists think this may be the remnants of a jet stream cloud band. Such jet stream bands indicate the general position of these fast “rivers of air.” Based on its northeast orientation, its altitude, and its linear appearance, the cloud band is in the typical position and orientation of the Polar Jet, which blows northeast towards Hudson Bay, then dives south over the southeastern provinces of Canada. Animated maps of the Polar Jet for the days before this image show a dying branch of the jet over western Canada.

Even in this distant view, several thin contrails appear, disrupting the jet band and showing where aircraft flew in and near the jet stream. Aircraft take advantage of these fast jets (which can reach speeds of more than 440 kilometers or 275 miles per hour) as tail winds that can shorten flight times.
Date
Source Astronaut photography of Earth
Author Image courtesy of the Earth Science and Remote Sensing Unit, NASA Johnson Space Center
Picture of the day This image was selected as picture of the day on Wikimedia Commons for . It was captioned as follows:
English: While orbiting over the Gulf of Alaska and moving toward the west coast of the United States, an astronaut aboard the International Space Station shot this panorama looking north into the snow-covered landscape of Canada’s Coast Mountains, the Canadian Rockies, and Vancouver Island.
Camera location 52° 30′ 00″ N, 124° 30′ 00″ W View this and other nearby images on: OpenStreetMap - Google Earth info
Shuttle.svg This image or video was catalogued by Johnson Space Center of the United States National Aeronautics and Space Administration (NASA) under Photo ID: ISS046-E-3699.
This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing for more information.

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Licensing[edit]

Public domain 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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current09:33, 25 January 2016Thumbnail for version as of 09:33, 25 January 20164,928 × 3,280 (2.49 MB)Originalwana (talk | contribs){{Information |Description ={{en|1=While orbiting over the Gulf of Alaska and moving toward the west coast of the United States, an astronaut aboard the International Space Station shot this panorama looking north into the snow-covered landscape of...
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