Support the Arctic Sea Ice Forum and Blog

Author Topic: Global sea ice area and extent data  (Read 8819 times)

gerontocrat

  • ASIF Middle Class
  • Posts: 793
    • View Profile
Re: Global sea ice area and extent data
« Reply #100 on: November 23, 2017, 01:48:21 PM »
If daily ice loss hoovers around the 200K/day (duplicating the last day reported) for the next two weeks, the deficit with 2016 will be erased.  I'm not expecting this to happen (I make no forecast one way or the other), but it shows how insignificant 2 million square kilometers of ice is in the scheme of things.
JAXA DATA as at 22 Nov. - Extent =  23,467,908 km2

Extent loss per day remains well above average. Difference with 2016 reduced by 360 k km2 in 3 days to +1.76 million km2. The graph suggests that difference is likely to reduce further over the next ten days.
N.B. On average extent loss is only 11% complete as yet.

« Last Edit: November 23, 2017, 03:43:55 PM by gerontocrat »
"Para a Causa do Povo a Luta Continua!"

Tigertown

  • ASIF Upper Class
  • Posts: 1634
    • View Profile
Re: Global sea ice area and extent data
« Reply #101 on: November 23, 2017, 04:20:10 PM »
Not looking good at all.

gerontocrat

  • ASIF Middle Class
  • Posts: 793
    • View Profile
Re: Global sea ice area and extent data
« Reply #102 on: December 02, 2017, 03:59:51 PM »
Extent is gradually moving towards the pack - slightly slow Antarctic Loss and slightly high Arctic gain. But extent change from max only 12% done.
"Para a Causa do Povo a Luta Continua!"

gerontocrat

  • ASIF Middle Class
  • Posts: 793
    • View Profile
Re: Global sea ice area and extent data
« Reply #103 on: December 03, 2017, 02:00:05 PM »
Whoops - table posted yesterday was 23 November. Sorry. Below is corrected table.
"Para a Causa do Povo a Luta Continua!"

kiwichick16

  • ASIF Lurker
  • Posts: 29
    • View Profile
Re: Global sea ice area and extent data
« Reply #104 on: December 03, 2017, 08:13:37 PM »
@  gerontocrat......moving back towards the pack......agreed.....but still well below average

RikW

  • ASIF Lurker
  • Posts: 50
    • View Profile
Re: Global sea ice area and extent data
« Reply #105 on: December 04, 2017, 10:07:11 AM »
It is funny to see how my mind works with these graphs, when seeing it I think "the global sea ice area is okay/ it's somewhat recovering" while if you only remove 1 year it's crushing all records probably and the forum (and my mind) would be full of blue-ocean-event-next-melt-season posts ;)

gerontocrat

  • ASIF Middle Class
  • Posts: 793
    • View Profile
Re: Global sea ice area and extent data
« Reply #106 on: December 07, 2017, 04:08:45 PM »
Mainly JAXA DATA as at 6 Dec

The image below (from NSIDC / Wipneus) shows that extent is still drifting towards the pack. However, extent loss from max to min is only about 25% done..

The table, however, shows the possibility of a very low minimum.

The graph shows that last year the extent loss stalled at the end of December.

One can only wait and see.
"Para a Causa do Povo a Luta Continua!"