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View Full Version : Methane release from Arctic Ocean hydrates



Squink
2014-Aug-07, 03:32 PM
SWERUS-C3: First observations of methane release from Arctic Ocean hydrates (http://www.su.se/english/research/leading-research-areas/science/swerus-c3-first-observations-of-methane-release-from-arctic-ocean-hydrates-1.198540)
Örjan Gustafsson thinks that the mechanism behind the presence of methane seeps at these depths may have something to do with the ”tongue” of relatively warm Atlantic water, presumably intruding across the Arctic Ocean at 200-600 m depths.” Some evidence have shown that this water mass has recently become warmer. As this warm Atlantic water, the last remnants of the Gulf Stream, propagates eastward along the upper slope of the East Siberian margin, it may lead to destabilization of methane hydrates on the upper portion of the slope. This may be what we are now seeing for the first time,” writes Örjan Gustafsson.The Laptev sea (http://en.wikipedia.org/wiki/Laptev_Sea) lies about 1200km east of the Yamal peninsula of recent mysterious pit fame (http://cosmoquest.org/forum/showthread.php?152345-Big-Crater-in-Siberia-s-Yamal-Penninsula).

Hlafordlaes
2014-Aug-07, 04:03 PM
Nice links. I imagine folks are reworking estimates of methane release and the net result of the positive warming feedback. Doesn't sound like very good news.