Monday, 21 September 2015

Arctic sea ice - 09/20/2015

Arctic sea ice update - 09/20/2015

Arctic Iceberg's Sept 2015 Greenland




Animation of Lance Modis Pictures North East corner of Greenland.

Ice sheet breaking away. Exposing new ice to the effects of the anomalous warmer Atlantic Ocean water.

The sheet behind the new berg immediately cracks under the strain.

No more multi year ice to hold it together.


Arctic Sea Temperatures 09 20 2015



These photos with indications of sea ice concentration gives a far better indication than the usual computer-generated maps of sea ice extent

Sea Ice concentration. 09 16 2015

The pink 15% or less of sea Ice concentration.
The extent is in the news and the images are usually computer generated. The second image is a more realistic view.






Historical and projected sea surface anomalies



August data for sea surface temperature anomalies on the Northern Hemisphere contain a trendline pointing at a rise of 2°C (3.6°F) well before the year 2030. In other words, if this trend continues, the Northern Hemisphere sea surface will be 2°C (3.6°F) warmer in about a dozen years time from now.

Such a temperature rise would be catastrophic, as there are huge amounts of methane contained in the form of hydrates and free gas in sediments under the Arctic Ocean seafloor. A relatively small temperature rise of part of these sediments could cause a huge abrupt methane eruption, further speeding up local warming and triggering further methane eruptions, in a spiral of runaway warming that will cause mass destruction and extinction.

From: August 2015 Had Highest Sea Surface Temperature on Record http://arctic-news.blogspot.com/…/august-2015-had-highest-s…

Across the oceans, the August 2015 globally-averaged sea surface temperature was 0.78°C (1.40°F) above the 20th century average—the highest temperature for any month in the 1880–2015 record. NOAA analysis further shows that in August 2015, the sea surface on the Northern Hemisphere was 1.02°C (1.84°F) warmer than it was in the 20th century.

From: August 2015 Had Highest Sea Surface Temperature on Record



Temperature anomalies




The Pacific - sea temperature anomalies



The Atlantic - sea temperature anomalies




No comments:

Post a Comment