File:NASA - How to Get Colder Than Anywhere Else.webm
Original file (WebM audio/video file, VP9/Vorbis, length 1 min 0 s, 1,280 × 720 pixels, 660 kbps overall, file size: 4.72 MB)
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Summary
editDescriptionNASA - How to Get Colder Than Anywhere Else.webm |
English: At the coldest spots on Earth, every breath is painful. But how cold can it get on Earth's surface? What sort of weather brings on the record-breaking cold?
On the high plateau of East Antarctica, there is a ridge along the ice sheet nearly 14,000 feet above sea level. The dry atmosphere and the long, sunless winter months combine to make this the coldest place on earth. Under the clear Antarctic night skies the snow surface radiates warmth into space, cooling the air just above the surface. As the air cools, it gets denser and starts to slide down the slope off of the ridge. It collects In small hollows just a little downhill and continues to be cooled as the snow in the hollow radiates away its small amount of warmth. The MODIS sensor on NASA's Aqua satellite allowed researchers from the National Snow and Ice Data Center to find the coldest place on Earth. By turning to the TIRS sensor on the NASA/USGS Landsat 8 satellite, with its higher spatial resolution, the scientists were able to confirm how the topography facilitates these record low temperatures. This video is public domain and can be downloaded at: http://svs.gsfc.nasa.gov/goto?11432 Like our videos? Subscribe to NASA's Goddard Shorts HD podcast: http://svs.gsfc.nasa.gov/vis/iTunes/f0004_index.html Or find NASA Goddard Space Flight Center on facebook: http://www.facebook.com/NASA.GSFC Or find us on Twitter: https://twitter.com/NASAGoddard |
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Source | YouTube: NASA - How to Get Colder Than Anywhere Else – View/save archived versions on archive.org and archive.today |
Author | NASA Goddard |
Licensing
editPublic 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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This file was reviewed on 2 January 2017 by the administrator or trusted user Reventtalk, who confirmed the Public Domain status on that date.
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File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 19:49, 18 May 2014 | 1 min 0 s, 1,280 × 720 (4.72 MB) | McZusatz (talk | contribs) | HD (uploaded using chunked upload script) | |
19:45, 18 May 2014 | 1 min 0 s, 640 × 360 (2.46 MB) | YtUPt (talk | contribs) | Imported from http://www.youtube.com/watch?v=jlucyyHVXes |
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