Sabtu, 11 Januari 2014

Arctic in early January 2014

In early January 2014, Arctic sea ice extent reached levels as low as they were in early January 2013, as illustrated by the image below.


Methane levels over the Arctic remain extremely high. The image below shows methane readings for the period January 1 - 11, 2014, with the inset showing the situation in 2013 for the same period.


Similarly, the image below makes a comparison between methane recorded in 2013 and in 2014 for this period (January 1-11), this time focusing on the Arctic and only showing methane readings of 1950 ppb and higher in yellow.


Below a combination of images by Dr. Leonid Yurganov, also comparing methane levels between early 2013 and 2014. The difference isn't as marked in the image below as in the above image, as the highest value in the image below is 1920+ ppb, whereas the above image highlights levels of 1950+ ppb.


These high methane releases from the seafloor of the Arctic Ocean are contributing to the over 20°C temperature anomalies that have hit parts of the Arctic Ocean recently, as illustrated by the image below.

In conclusion, the Arctic is hit by three kinds of warming, while there are at least 13 feedbacks that further accelerate warming in the Arctic, as described in the post The Biggest Story of 2013.




Share on Facebook
Share on Twitter
Share on Google+

Related : Arctic in early January 2014

  • Arctic Sea Ice in Steep DescentArctic sea ice area is in steep descent, as illustrated by the image below. Sea ice area was only smaller at this time of the year in 2007, for all years for which satel ...
  • Methane buildup in the atmosphereLevels of carbon dioxide (CO2) in the atmosphere are now firmly above the 400 parts per million (ppm) level, as illustrated by the graph below, from keelingcurve.ucsd.ed ...
  • As continental U.S. freezes, Alaska gets record high temperaturesWhile much of the continental United States endured several cold snaps in January 2014, record-breaking warmth gripped Alaska. Spring-like conditions set rivers rising a ...
  • High methane readings over GreenlandHigh methane readings have been recorded over Greenland since the start of February 2014. The image below shows methane readings of 1950 ppb and higher in yellow on Febr ...
  • Arctic sea ice extent updateThe image below shows sea ice extent as calculated by the Polar View team at the University of Bremen, Germany, updated August 25, 2012.The image below, edited from ...

0 komentar:

Posting Komentar