Arctic Gained 20,000 Manhattans Of Ice In September

Posted on October 4, 2015 by Tony Heller

ScreenHunter_10655 Oct. 04 05.42

Ocean and Ice Services | Danmarks Meteorologiske Institut

Arctic sea ice experienced the earliest minimum on record this year, and has seen record growth in September.

The Sierra Cub says the Arctic has been ice-free for two years.

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About Tony Heller

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29 Responses to Arctic Gained 20,000 Manhattans Of Ice In September

  2. rah says:
    October 4, 2015 at 1:18 pm

    Ren is that not an older graph? says 22/09/15?

    I’m going to try and post the current ones if the system lets me:
    First the current DMI with coastal areas masked dated Sun, Oct. 4
    http://ocean.dmi.dk/arctic/plots/icecover/icecover_current.png

    Reply
    • rah says:
      October 4, 2015 at 1:20 pm

      Well as you can see it posted the one from Sat. Oct. 3rd.
      Now I will try the one with coastal areas unmasked dated 4/10/15:

      http://ocean.dmi.dk/arctic/plots/icecover/icecover_current_new.png

      Reply
      • rah says:
        October 4, 2015 at 1:23 pm

        As you can see it posted the same one you provided Ren. But that isn’t the current one. Here is the link to the PAGE showing the latest as of now which shows a substantial up tick: http://ocean.dmi.dk/arctic/icecover.uk.php

        Reply
        • Gail Combs says:
          October 4, 2015 at 1:57 pm

          I love the way they use a gray area of only ± 1 ? or 68.27% of the distribution to make it look like the sea ice is below ‘normal’

        • gator69 says:
          October 4, 2015 at 2:02 pm

          1979-2000, the meaningless mean!

        • rah says:
          October 4, 2015 at 2:06 pm

          At least they label it as being based on the mean from 1979 to 2000.

        • Colorado Wellington says:
          October 4, 2015 at 3:27 pm

          Gator’s just being mean.

        • gator69 says:
          October 4, 2015 at 3:35 pm

          You have no idea what I mean.

        • Disillusioned says:
          October 4, 2015 at 7:00 pm

          rah, look again; you’re reading it wrong. ren posted an up-to-date graph. With the 15% graph the named month is in the middle of the month, whereas with the 30% graph, the first of the month is under the first of the month.

          I made the same mistake once. Tony pointed it out to me.

        • Colorado Wellington says:
          October 5, 2015 at 6:44 am

          ren, rah & Disillusioned:

          I took a peek at the source code behind the WordPress page. The graph showing in ren’s comment is cached by WordPress and is no longer the same as that the one that displays when you click on the “target” link behind the image:

          /i0.wp.com /ocean.dmi.dk/arctic/plots/icecover/icecover_current_new.png – ren’s cached graph
          /ocean.dmi.dk/arctic/plots/icecover/icecover_current_new.png – DMI’s most recent graph

          I don’t know why ren’s comment from Oct 4 would have uploaded a Sep 22 DMI graph unless it was on their website at the time of his comment.

          Here is ren’s cached image:
          https://i0.wp.com/ocean.dmi.dk/arctic/plots/icecover/icecover_current_new.png

          Here is what’s on DMI at 201510050040 MDT (as I’m posting this):
          https://coloradowellington.files.wordpress.com/2015/10/dmi-icecover_current_new-201510040813utc.png

          And here’s how they look overlaid:
          https://coloradowellington.files.wordpress.com/2015/10/dmi-icecover_current_new-20150922-20151004utc.gif

          BTW, while I was looking at the WordPress code and following the links, DMI displayed briefly yet another graph from 20151003 which was subsequently replaced by a 20151004 version again. I’m not sure what happened but they could have been in the middle of some update procedures at the time. If ren got caught in such update while he was posting, WordPress would have included whatever then existed at the link.

          I know that Tony posts images uploaded to his own media library when he wants to guarantee that the target link displays the same thing.

        • AndyG55 says:
          October 5, 2015 at 8:11 am

          “I know that Tony posts images uploaded to his own media library when he wants to guarantee that the target link displays the same thing.”

          I’m going to try to remember to do that in future…. if I remember to. 😉

        • Colorado Wellington says:
          October 5, 2015 at 8:41 am

          I’d be worried that I forget to remember … 😀

        • rah says:
          October 5, 2015 at 1:00 pm

          Thanks Colorado. All I have done in the past is right click for “Copy image Location” and then post that code here. But for some reason for the last few weeks more often than not what comes up is an earlier version of the image (chart or graph) than what was being displayed and what I clicked on at the site.

          I’m still using MS Windows XP and I was wondering if that had something to do with it.

        • Gail Combs says:
          October 5, 2015 at 1:16 pm

          I am using old ubuntu and opera and having the same problem. WordUnimpressed seems to have gone squirrelly again.

          They certainly have done a recent up-grade since half the time now I get a little box saying image with no picture and have to go to Firefox to get it to display.

          Also when I click on a comment as of a couple days ago, it takes me to the top of the page and then just spins. I have to use ‘find’ to search for the new comment. It is irriatting as heck.

        • rah says:
          October 5, 2015 at 1:33 pm

          Ah well this winter I will be upgrading to a new machine with new hardware and software. Over the years I have maxed out the RAM my old Dell Dimension E310 desktop can take but the Pentium 4 HT just isn’t cutting it anymore. I must say though that this old computer has been very good. Other than upgrading various cards and adding RAM the only other thing I’ve had to do over the years is change the fan once.

  3. rah says:
    October 4, 2015 at 3:57 pm

    Here is what Sunshine hours shows for Arctic ice for today.

    https://sunshinehours.wordpress.com/2015/10/04/sea-ice-extent-day-276/

    But for some strange reason Antarctic sea ice continues it’s climb though the rate has flattened out a good deal.

    https://sunshinehours.files.wordpress.com/2015/10/antarctic_sea_ice_extent_zoomed_2015_day_276_1981-2010.png?w=1024&h=682

    Thus Global sea ice shows a bit of a drop.

    https://sunshinehours.files.wordpress.com/2015/10/global_sea_ice_extent_zoomed_2015_day_276_1981-2010.png?w=1024&h=682

    Here endeth the daily episode of ‘How the World Sea Ice Turns’.

    Reply
  4. davidswuk says:
    October 4, 2015 at 5:45 pm

    The joke will come when Mann et al will be out there on the Ice in their teenies and Sun – Bloc claiming that “It aint `arf `ot Ma” when it friggin well aint ……………………
    Roll on !

    Reply
  5. mogur2013 says:
    October 5, 2015 at 1:19 am

    I don’t think that you can say that a huge gain in September is anything but a normal recovery from a very low summer extent. To imply that it signifies a return (or recovery) to normal is blatantly misleading. How does your garden grow? Does it grow from record lows? Does it grow from normal lows? We haven’t seen a ‘normal low’ for decades. Can you provide me with one example of a low above the average in the last twenty years?

    Reply
  6. Andy Oz says:
    October 5, 2015 at 10:56 am

    Tony,

    Attached are a couple of historical records worth keeping links to.

    1. Former Expeditions to the Arctic – 1550 onwards to 1850’s and the search for Franklin.
    http://trove.nla.gov.au/ndp/del/article/38447023

    2. Is there an Open Polar Sea?
    http://trove.nla.gov.au/ndp/del/article/2929925

    Dr (Elisha) Kane wintered in Smith’s Straits,
    near the 79th parallel. From this point
    the following spring he sent parties over
    the ice northward about 125 miles in a di-
    rect line, when they came to an open sea,
    the shores of which they traced on the
    east nearly to 81 degrees 30 minutes, and
    on the western side to 82 degrees 30 min-
    utes, approximately. At this far remote
    point, and from a height of 480 feet, which
    commanded a horizon ot nearly forty
    miles, the ears of the party “were glad-
    dened with the novel music of the dashing
    waves and a surf, breaking in among rocks
    at their feet which stayed further progress.’
    As they travelled north the channel ex-
    panded into an iceless area, and taking 36
    miles as the mean radium open to reliable
    survey, the sea had a justly estimated ex-
    tent of more than 4,000 square miles.

    http://www.printsoldandrare.com/polar/002pole.jpg

    Reply
  7. Andy Oz says:
    October 5, 2015 at 11:04 am

    Nice old map of Antarctica showing ice shelves, and polynyas. Don’t know the age.
    https://collinsmaps.files.wordpress.com/2008/07/antarctica1909_2.jpg

    Reply
  8. rah says:
    October 5, 2015 at 12:41 pm

    Judith Curry has a good one on how variable salinity effects Arctic sea ice amounts. Just one of the oh so many variables. “Why is the Arctic climate and ice cover so variable?”

    http://judithcurry.com/2015/10/04/why-is-the-arctic-climate-and-ice-cover-so-variable/

    Reply

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