Welcome to DU! The truly grassroots left-of-center political community where regular people, not algorithms, drive the discussions and set the standards. Join the community: Create a free account Support DU (and get rid of ads!): Become a Star Member Latest Breaking News Editorials & Other Articles General Discussion The DU Lounge All Forums Issue Forums Culture Forums Alliance Forums Region Forums Support Forums Help & Search

Environment & Energy

Showing Original Post only (View all)
 

GliderGuider

(21,088 posts)
Thu Jul 25, 2013, 08:29 PM Jul 2013

Large, Troubling Methane Pulse Coincides With Arctic Heatwave, Tundra Fires [View all]

Large, Troubling Methane Pulse Coincides With Arctic Heatwave, Tundra Fires

Yesterday, I reported that a large Arctic heat wave had settled over Siberia, once again setting off tundra fires. The heat wave was so intense that it pushed temperatures in a range of 77 to 86 degrees all the way to the shores of the Arctic Ocean even as it caused numerous massive blazes to emerge both on open tundra and throughout Siberia’s arboreal forests. Atmospheric conditions — a Jet Stream mangled by human caused climate change and a large heat dome had enabled the formation of this heat wave.

But now we find something even more ominous than evidence that human global warming is moving the Jet Stream about all while pushing polar amplification into such a high gear that the terms ‘Arctic Heat Wave’ and ‘Tundra Fire’ have now become common meteorological parlance. And that thing is a large and disturbing methane pulse.



On July 21-23, a large methane emission in which numerous sources caused atmospheric spikes to greater than 1950 parts per billion flared over a wide region of Arctic Russia and the Kara Sea. This event was so massive that an area of about 500 x 500 miles was nearly completely filled with these higher readings even as a much broader region, stretching about 2,000 miles in length and about 800 miles at its widest, experienced scores of large pulses. You can see a visual representation of these emissions in yellow on the image above, provided by Methane Tracker which compiles data provided by NASA’s Aqua Satellite.
16 replies = new reply since forum marked as read
Highlight: NoneDon't highlight anything 5 newestHighlight 5 most recent replies
Latest Discussions»Issue Forums»Environment & Energy»Large, Troubling Methane ...»Reply #0