File:Alaska’s Bubbling Lakes 5CV2bz g3u8.webm
Original file (WebM audio/video file, VP9/Opus, length 1 min 39 s, 1,920 × 1,080 pixels, 2.68 Mbps overall, file size: 31.52 MB)
Captions
Summary[edit]
DescriptionAlaska’s Bubbling Lakes 5CV2bz g3u8.webm |
English: Bubbles, bubbles, and more bubbles, in a steady stream. Many lakes in the boreal regions of Alaska are emitting methane, the product of decomposing organic matter left over from the Ice Age.
Thawing permafrost has caused areas of land to slump and fill up with water, creating these bodies of water called 'thermokarst lakes.' The water then exacerbates the thawing, expanding the size of the lake and producing even more methane. In the early cold season, ice covers the lakes and traps methane in large pockets just beneath the surface. University of Alaska Fairbanks scientists working as part of NASA’s Arctic Boreal Vulnerability Experiment (ABoVE) find and measure the methane gas in these pockets seep-by-seep and lake-by-lake. ABoVE combines precise methane measurements from individual lakes with satellite data that can monitor lakes like these across the Arctic, to accurately model how much methane sub-lake seeps are adding to the atmosphere. Credit: NASA's Goddard Space Flight Center/Jefferson Beck For more information: https://blogs.nasa.gov/earthexpeditions/2016/08/23/mapping-methane-in-a-bubbling-arctic-lake/ This video is public domain and along with other supporting visualizations can be downloaded from the Scientific Visualization Studio at: https://svs.gsfc.nasa.gov/12351 If you liked this video, subscribe to the NASA Goddard YouTube channel: https://www.youtube.com/NASAExplorer Or subscribe to NASA’s Goddard Shorts HD Podcast: http://svs.gsfc.nasa.gov/vis/iTunes/f0004_index.html Follow NASA’s Goddard Space Flight Center · Facebook: http://www.facebook.com/NASA.GSFC · Twitter https://twitter.com/NASAGoddard · Flickr https://www.flickr.com/photos/gsfc/ · Instagram http://www.instagram.com/nasagoddard/ · Google+ http://plus.google.com/+NASAGoddard/posts |
Date | |
Source | YouTube: Alaska’s Bubbling Lakes – View/save archived versions on archive.org and archive.today |
Author | NASA Goddard |
Closed captions are available for this media file. Click on the CC button in the toolbar of the media player to display or hide them. Create a new translation via the form below. |
||||||
Replace the en part with your language code and press the Go button. | ||||||
|
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.) | ||
Warnings:
|
This file, which was originally posted to YouTube: Alaska’s Bubbling Lakes, was reviewed on 19 November 2020 by the automatic software YouTubeReviewBot, which confirmed that this video was available there under the stated Creative Commons license on that date. This file should not be deleted if the license has changed in the meantime. The Creative Commons license is irrevocable.
The bot only checks for the license, human review is still required to check if the video is a derivative work, has freedom of panorama related issues and other copyright problems that might be present in the video. Visit licensing for more information. If you are a license reviewer, you can review this file by manually appending | |
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 21:25, 19 November 2020 | 1 min 39 s, 1,920 × 1,080 (31.52 MB) | Eatcha (talk | contribs) | Uploaded Alaska’s Bubbling Lakes by NASA Goddard from Youtube |
You cannot overwrite this file.
File usage on Commons
There are no pages that use this file.
Transcode status
Update transcode statusMetadata
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.
Software used | Lavf58.29.100 |
---|