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Summary
| Description |
English: The permafrost of the East Siberian Arctic Shelf (an area of about 2 million kilometers squared) is more porous than previously thought. The ocean on top of it and the heat from the mantle below it warm it and make it perforated like Swiss cheese. This allows methane gas stored under it under pressure to burst into the atmosphere. The amount leaking from this locale is comparable to all the methane from the rest of the world's oceans put together. Methane is a greenhouse gas more than 30 times more potent than carbon dioxide. Credit: Zina Deretsky, National Science Foundation ; For more about this research, see http://www.nsf.gov/news/news_summ.jsp?cntn_id=116532 www.nsf.gov/news/news_summ.jsp?cntn_id=116532 ;
Visit NSF’s Multimedia Gallery, at http://www.nsf.gov/news/mmg www.nsf.gov/news/mmg, for more images, and for video. Français : Le permafrost du plateau arctique de Sibérie orientale (environ 2 millions de kilomètres carrés) est plus poreux qu’on ne le pensait auparavant. L'océan au-dessus et la chaleur du manteau en dessous le réchauffent et lui donnent une structure interne en gruyère. Le méthane accumulé sous pression dans ces trous peut être brutalement libéré dans l'air. La quantité qui s'échappe de cette zone est comparable à tout le méthane provenant du reste des océans du monde réunis. Le méthane est un gaz à effet de serre 30 fois plus puissant que le dioxyde de carbone. Crédit : Zina Deretsky, Fondation nationale des sciences ; Pour en savoir plus sur cette recherche, voir www.nsf.gov/news/news_summ.jsp?cntn_id=116532 et/ou Visitez la galerie multimédia de NSF, www.nsf.gov/news/mmg, pour plus d'images et de vidéos. |
| Date | |
| Source | Methane Releases - East Siberian Arctic Shelf |
| Author | National Science Foundation |
Licensing
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This image is a work of a National Science Foundation employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain. |  |
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This image was originally posted to Flickr by National Science Foundation at https://flickr.com/photos/37157086@N02/4416688271. It was reviewed on 19 January 2018 by FlickreviewR 2 and was confirmed to be licensed under the terms of the United States Government Work. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 14:02, 19 January 2018 | | 1,910 × 1,200 (397 KB) | Artix Kreiger 2 | Transferred from Flickr via Flickr2Commons |
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