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|a Extensive Methane Venting to the Atmosphere from Sediments of the East Siberian Arctic Shelf |h [electronic resource] |y English. |
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|a 1200 New York Avenue NW, Washington, DC 20005 : |b American Association for the Advancement of Science, |c 2010-03-05. |
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|a Science Magazine Volume 327 |y English. |
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|a Please contact the owning institution for licensing and permissions. It is the user's responsibility to ensure use does not violate any third party rights. |
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|a Remobilization to the atmosphere of only a small fraction of the methane held in East Siberian
Arctic Shelf (ESAS) sediments could trigger abrupt climate warming, yet it is believed that
sub-sea permafrost acts as a lid to keep this shallow methane reservoir in place. Here, we show that
more than 5000 at-sea observations of dissolved methane demonstrates that greater than 80% of
ESAS bottom waters and greater than 50% of surface waters are supersaturated with methane
regarding to the atmosphere. The current atmospheric venting flux, which is composed of a
diffusive component and a gradual ebullition component, is on par with previous estimates of
methane venting from the entire World Ocean. Leakage of methane through shallow ESAS waters
needs to be considered in interactions between the biogeosphere and a warming Arctic climate |
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|a Electronic reproduction. |c Florida International University, |d 2015. |f (dpSobek) |n Mode of access: World Wide Web. |n System requirements: Internet connectivity; Web browser software. |
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|a Eastern Siberian region (russia). |
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|a dpSobek |c Sea Level Rise |
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|u http://dpanther.fiu.edu/dpService/dpPurlService/purl/FI15050310/00001 |y Click here for full text |
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|a http://dpanther.fiu.edu/sobek/content/FI/15/05/03/10/00001/FI15050310_thm.jpg |
