Day 141, May 21 results from MASIE. A day of losses with 2015 building on its lead.
2014 lost about 130k on this day while 2015 lost 70k km2 down to 12.64M km2. The loss is at 13.1% from NH max on day 93. 2015 lead is 0.6%, which is about 80k km2 difference.
Some Arctic ice watchers are focused on the BCE region: Beaufort, Chukchi and East Siberian Seas. It seems that when multi-year ice collects in this region, the Arctic Sea ice margin is protected, and the melting is reduced, resulting in a higher September minimum. Thus an early melting in BCE region can signal a lower summer minimum for NH ice extent, and vice-versa.
To monitor this, I have added a BCE index, being the total 2015 ice extent in BCE as a % of total 2014 extent in the same region. All figures from MASIE.
Day 140, May 20 results from MASIE. 2015 takes the lead by holding on while 2014 takes a typical loss.
https://rclutz.wordpress.com/2015/05/12/arctic-ice-watch-2015-2/
Day 141, May 21 results from MASIE. A day of losses with 2015 building on its lead.
2014 lost about 130k on this day while 2015 lost 70k km2 down to 12.64M km2. The loss is at 13.1% from NH max on day 93. 2015 lead is 0.6%, which is about 80k km2 difference.
Some Arctic ice watchers are focused on the BCE region: Beaufort, Chukchi and East Siberian Seas. It seems that when multi-year ice collects in this region, the Arctic Sea ice margin is protected, and the melting is reduced, resulting in a higher September minimum. Thus an early melting in BCE region can signal a lower summer minimum for NH ice extent, and vice-versa.
To monitor this, I have added a BCE index, being the total 2015 ice extent in BCE as a % of total 2014 extent in the same region. All figures from MASIE.
https://rclutz.wordpress.com/2015/05/12/arctic-ice-watch-2015-2/