Shrinking of Arctic ice extent and mid latitude weather

For scientific papers on AGW, record happenings in the Arctic and the Greenland, Himalayan and Antarctic icesheets. Also weatherstorms and higher than average rainfalls and other extreme weather events.

Open to guest posting.

Moderator: johnsmith

Shrinking of Arctic ice extent and mid latitude weather

Postby HBS Guy » 18 Sep 2018, 10:24

The influence of Arctic amplification on mid-latitude summer circulation
D. Coumou, G. Di Capua, S. Vavrus, L. Wang & S. Wang
Nature Communicationsvolume 9, Article number: 2959 (2018) | Download Citation

Abstract
Accelerated warming in the Arctic, as compared to the rest of the globe, might have profound impacts on mid-latitude weather. Most studies analyzing Arctic links to mid-latitude weather focused on winter, yet recent summers have seen strong reductions in sea-ice extent and snow cover, a weakened equator-to-pole thermal gradient and associated weakening of the mid-latitude circulation. We review the scientific evidence behind three leading hypotheses on the influence of Arctic changes on mid-latitude summer weather: Weakened storm tracks, shifted jet streams, and amplified quasi-stationary waves. We show that interactions between Arctic teleconnections and other remote and regional feedback processes could lead to more persistent hot-dry extremes in the mid-latitudes. The exact nature of these non-linear interactions is not well quantified but they provide potential high-impact risks for society.
Abbott & Co are going to cause the mother and father of all recessions—be prepared!
User avatar
HBS Guy
Tractors to Australia
 
Posts: 49152
Joined: 27 Oct 2009, 15:37

Return to Global Warming and Australian Energy Market

Who is online

Users browsing this forum: No registered users and 1 guest