Showing posts with label Beaufort Sea. Show all posts
Showing posts with label Beaufort Sea. Show all posts

Tuesday 30 June 2015

Dramatic Sea Ice Decline In Beaufort Sea in June 2015

The image below illustrates the dramatic fall in sea ice thickness (in m) in the Beaufort Sea over the past month. The left panel shows sea ice thickness on May 29, 2015, and the panel on the right shows sea ice thickness on June 29, 2015.


The 30-day animation below further illustrates this dramatic fall in sea ice thickness (from June 8-29, with forecast up to July 7, 2015).




Another perspective is sea ice concentration. The image below shows the high concentration back on May 1, 2015.



The 30-day animation below shows the dramatic fall in sea ice concentration (from June 8-29, with forecast up to July 7, 2015).



Below an interview by Judy Sole with Professor Peter Wadhams, held May 15, 2015, and entitled 'Our time is running out - The Arctic sea ice is going!'


Meanwhile, very high temperatures keep showing up within the Arctic Circle. On July 1, 2015, a temperature of 36°C (96.8°F) was reached near the Kolyma River that ends in the East Siberian Sea, as illustrated by the images below (green circle).


The image below also shows the location where this high temperature was reached (red marker), as well as the depth of the seabed and the Gakkel Ridge that runs in between the northern tip of Greenland and the Laptev Sea.



Related

- High Methane Levels over Laptev Sea
http://arctic-news.blogspot.com/2013/10/high-methane-levels-over-laptev-sea.html

- Accelerated Warming in the Arctic
http://arctic-news.blogspot.com/2015/06/accelerated-warming-in-the-arctic.html

- Gulf Stream brings ever warmer water into Arctic Ocean
http://arctic-news.blogspot.com/2015/06/gulf-stream-brings-ever-warmer-water-into-arctic-ocean.html

- High Temperatures in the Arctic
http://arctic-news.blogspot.com/2015/06/high-temperatures-in-the-arctic.html

- Heat Wave Forecast For Russia Early June 2015 
http://arctic-news.blogspot.com/2015/06/heat-wave-forecast-for-russia-early-june-2015.html

Dramatic Sea Ice Decline In Beaufort Sea in June 2015 http://arctic-news.blogspot.com/2015/06/dramatic-sea-ice-decline-in-beaufort-sea-in-june-2015.html
Posted by Sam Carana on Tuesday, June 30, 2015

Tuesday 19 August 2014

Persistently High Methane Concentrations over Beaufort Sea

High methane concentrations have been showing up over Beaufort Sea over the past few days, as shown on the image below. This follows the recent high methane concentrations over the East Siberian Sea.


The persistent character of these very high methane concentrations over the Arctic Ocean indicates that methane has started to erupt from clathrates under the seabed, triggered by very warm water reaching the bottom of the Arctic Ocean.

Methane eruptions from hydrates in sediments under the Arctic Ocean helped mean methane levels reach new records, with mean global methane readings as high as 1835 parts per billion recorded at several altitudes on August 17, 2014.


The very high sea surface temperature anomalies that show up on above image give an idea of the inflow of warm water from the Pacific Ocean through the Bering Strait. This is further highlighted by the combination image below.

[ click on image to enlarge ]
The situation is dire and calls for comprehensive and effective action, as discussed at the Climate Plan blog.