Author Topic: IJIS (Read 2670982 times)

Oyvind Johnsen · « **Reply #1750 on:** November 04, 2015, 03:05:16 PM »

BFTV, are you talking of the average for the last 5-day-period? It seems to me that the slower rate of refreeze in the 81-10-period is because the rate of refreeze is slowing down as the extent grows. In the latest years (including 2015) the extent is lower and the rate of refreeze still higher, at this point.
From the posts earlier in the thread, it seems to me that the curves are converging somewhat in Mid-November. 2015 is heading "up" towards many of the earlier years, but still being among a cluster of recent years, a little below "the pack".
It would be interesting if Espen could include some more years like the earlier posts, at least for one day, to get the broader picture.

BornFromTheVoid · « **Reply #1751 on:** November 04, 2015, 03:26:18 PM »

Quote from: Oyvind Johnsen on November 04, 2015, 03:05:16 PM

BFTV, are you talking of the average for the last 5-day-period? It seems to me that the slower rate of refreeze in the 81-10-period is because the rate of refreeze is slowing down as the extent grows. In the latest years (including 2015) the extent is lower and the rate of refreeze still higher, at this point.
From the posts earlier in the thread, it seems to me that the curves are converging somewhat in Mid-November. 2015 is heading "up" towards many of the earlier years, but still being among a cluster of recent years, a little below "the pack".
It would be interesting if Espen could include some more years like the earlier posts, at least for one day, to get the broader picture.

Yeah, you're right, and using the NSIDC extent for comparison. It's typical for the years to start grouping together during October and November. Below is a graph, using the NSIDC single day extent, of the difference between the max and min extent during the year.

Espen · « **Reply #1752 on:** November 04, 2015, 07:35:43 PM »

Quote from: Oyvind Johnsen on November 04, 2015, 03:05:16 PM

It would be interesting if Espen could include some more years like the earlier posts, at least for one day, to get the broader picture.

Espen · « **Reply #1753 on:** November 05, 2015, 05:39:52 AM »

IJIS:

8,764,889 km²（November 4, 2015）up 89,551 km² from previous-

Espen · « **Reply #1754 on:** November 06, 2015, 05:49:09 AM »

IJIS:

8,864,357 km²（November 5, 2015）up 99,468 km² from previous.

jdallen · « **Reply #1755 on:** November 07, 2015, 10:08:13 AM »

Quote from: Peter Ellis on November 04, 2015, 10:12:55 AM

A "power dive" from 2-3 days of below-average refreeze? Take a step back and stop looking at stuff on less than a 5-day timescale. Day to day wiggles are just noise. Refreeze has been running almost exactly parallel to the 2000s average since the 18th of October.

I hereby plead guilty to over-excitability.

Espen · « **Reply #1756 on:** November 07, 2015, 11:03:16 AM »

IJIS:

8,968,443 km²（November 6, 2015）up 104,086 km² from previous.

kingbum · « **Reply #1757 on:** November 07, 2015, 08:08:14 PM »

I am beginning to wonder if slower extent days are really volume building days this time of year

Espen · « **Reply #1758 on:** November 08, 2015, 11:09:16 AM »

IJIS:

9,085,057 km²（November 7, 2015）up 116,614 km² from previous.

Espen · « **Reply #1759 on:** November 09, 2015, 06:48:15 AM »

IJIS:

9,171,176 km²（November 8, 2015）up 86,119 km²from previous.

Espen · « **Reply #1760 on:** November 10, 2015, 05:33:30 AM »

IJIS:

9,184,700 km²（November 9, 2015）up 13,524 km² from previous.

Espen · « **Reply #1761 on:** November 11, 2015, 05:29:46 AM »

IJIS:

9,333,930 km²（November 10, 2015）up 149,230 km² from previous.

Espen · « **Reply #1762 on:** November 12, 2015, 06:04:30 AM »

IJIS:

9,390,846 km²（November 11, 2015）up 56,916 km² from previous.

Espen · « **Reply #1763 on:** November 13, 2015, 06:11:44 AM »

IJIS:

9,409,153 km²（November 12, 2015）up 18,307 km² from previous.

Espen · « **Reply #1764 on:** November 14, 2015, 10:14:56 AM »

IJIS:

9,444,658 km²（November 13, 2015）up 35,505 km² from previous.

Espen · « **Reply #1765 on:** November 15, 2015, 10:48:51 AM »

IJIS:

9,528,235 km²（November 14, 2015）up 83,577 km² from previous.

Espen · « **Reply #1766 on:** November 15, 2015, 10:50:57 AM »

The update will be weekly until melt starts again.

slow wing · « **Reply #1767 on:** November 15, 2015, 11:36:37 AM »

Yep, it's just not as interesting at this time of year. Appreciate your updates, Espen!

magnamentis · « **Reply #1768 on:** November 15, 2015, 02:45:04 PM »

Quote from: Espen on November 15, 2015, 10:50:57 AM

The update will be weekly until melt starts again.

thanks for the dailies and the future weeklies, very much appreciated.

Tor Bejnar · « **Reply #1769 on:** November 15, 2015, 11:55:22 PM »

I second that!

BornFromTheVoid · « **Reply #1770 on:** November 20, 2015, 08:15:43 PM »

Cheers for all the updates Espen.

In recent days, the extent values have dropped from 8th lowest to 4th lowest, and have remained essentially unchanged since the 16th. If this continues, we could be down to 2nd lowest in as little as 3 days.

Espen · « **Reply #1771 on:** November 20, 2015, 08:32:06 PM »

Thanks!

I have noticed that too.

jdallen · « **Reply #1772 on:** November 21, 2015, 01:45:18 AM »

Down to third as of yesterday.

BornFromTheVoid · « **Reply #1773 on:** November 21, 2015, 11:18:44 AM »

Quote from: jdallen on November 21, 2015, 01:45:18 AM

Down to third as of yesterday.

Still 4th, no? Above 2012, 2010 and 2006 I thought?

oren · « **Reply #1774 on:** November 21, 2015, 02:09:43 PM »

Quote from: BornFromTheVoid on November 21, 2015, 11:18:44 AM

Quote from: jdallen on November 21, 2015, 01:45:18 AM
Down to third as of yesterday.

Still 4th, no? Above 2012, 2010 and 2006 I thought?

Yes

jdallen · « **Reply #1775 on:** November 21, 2015, 06:07:57 PM »

Quote from: oren on November 21, 2015, 02:09:43 PM

Quote from: BornFromTheVoid on November 21, 2015, 11:18:44 AM
Quote from: jdallen on November 21, 2015, 01:45:18 AM
Down to third as of yesterday.

Still 4th, no? Above 2012, 2010 and 2006 I thought?

Yes

I'll have another look at the CSV file. I must have misread it.

Espen · « **Reply #1776 on:** November 22, 2015, 09:26:34 AM »

IJIS:

9,642,870 km²（November 21, 2015）up 114,635 km² since Nov. 14 2015.

Espen · « **Reply #1777 on:** November 29, 2015, 10:11:39 AM »

IJIS:

10,431,199 km²（November 28, 2015）up 788,329 km² since Nov. 21 2015.

Espen · « **Reply #1778 on:** December 06, 2015, 11:07:03 AM »

IJIS:

10,780,081 km²（December 5, 2015）up 348,882 km² since Nov. 28 2015.

oren · « **Reply #1779 on:** December 06, 2015, 01:26:10 PM »

Now it's down to third, behind 2010 and 2006. Not that it matters that much.

Espen · « **Reply #1780 on:** December 13, 2015, 09:45:39 AM »

IJIS:

11,380,851 km²（December 12, 2015）up 600,770 km² since Dec. 5 2015.

Espen · « **Reply #1781 on:** December 20, 2015, 09:24:03 AM »

IJIS:

11,738,107 km²（December 19, 2015）up 357,256 km² since December 12 2015, and 2nd lowest measured for the date:

Espen · « **Reply #1782 on:** December 26, 2015, 05:34:21 AM »

IJIS:

12,004,952 km²（December 25, 2015）2^nd lowest measured for the date.

Espen · « **Reply #1783 on:** January 01, 2016, 11:44:29 AM »

IJIS:

12,273,075 km²（December 31, 2015）2^ndlowest measured for the date just 81,638 km² above 2010.

Shared Humanity · « **Reply #1784 on:** January 01, 2016, 03:52:29 PM »

With the storms and warm weather tearing up the ice on the Atlantic side and the now routine warm Alaskan winter, we may just catch up to 2010.

OldLeatherneck · « **Reply #1785 on:** January 04, 2016, 10:01:48 PM »

Does anyone have a clue as to when ADS-NIPR (IJIS) will start updating their website with the current Extent data for 2016??

mmghosh · « **Reply #1786 on:** January 05, 2016, 04:17:04 PM »

It will be interesting when it does update. NSIDC is already showing 2016 as the lowest extent on the Charctic graph.

http://nsidc.org/arcticseaicenews/charctic-interactive-sea-ice-graph/

Espen · « **Reply #1787 on:** January 13, 2016, 05:53:37 AM »

IJIS:

12,878,297 km²（January 12, 2016）

Espen · « **Reply #1788 on:** January 16, 2016, 12:05:31 PM »

IJIS:

12,909,668 km²（January 15, 2016）lowest measured for the date.

Espen · « **Reply #1789 on:** January 24, 2016, 10:11:50 AM »

IJIS:

13,106,124 km²（January 23, 2016）3^rd lowest measured for the date.

Next week will be interesting?

Espen · « **Reply #1790 on:** January 28, 2016, 05:35:31 AM »

IJIS:

13,227,113 km²（January 27, 2016）2^nd lowest measured for the date.

Espen · « **Reply #1791 on:** January 29, 2016, 05:39:10 AM »

IJIS:

13,218,625 km²（January 28, 2016）lowest measured for the date.
And could stay there for a while.

Espen · « **Reply #1792 on:** January 30, 2016, 10:10:09 AM »

IJIS:

13,246,144 km²（January 29, 2016）lowest measured for the date.

Espen · « **Reply #1793 on:** January 31, 2016, 10:18:02 AM »

IJIS:

13,284,828 km²（January 30, 2016）2^nd lowest measured 2006 lowest at 13,275,030 km² (-9,798 km2 )

Shared Humanity · « **Reply #1794 on:** January 31, 2016, 02:34:19 PM »

Looks like it may be 1st lowest for a while now.

Buddy · « **Reply #1795 on:** January 31, 2016, 03:19:12 PM »

Quote

Looks like it may be 1st lowest for a while now.

Where the ice is now.....combined with the much higher than normal temps in the Arctic above 80 degrees north.....the ice looks to be "in trouble" (to say the least).

Will be interesting to see the date of "peak ice". If it's early again this year (February)...the record low is definitely in reach.

Remember....we're on this "train ride" that will CONTINUE to go into "uncharted waters" for decades to come. An early ice max.....a couple nasty storms in the summer.....and "poof", most of the ice is either "gone" or broken to smithereens.

Things are "lining up".....and NOT in a good way.

Espen · « **Reply #1796 on:** February 01, 2016, 04:44:23 AM »

IJIS:

13,317,455 km²（January 31, 2016）lowest measured for the date.

Espen · « **Reply #1797 on:** February 02, 2016, 05:42:25 AM »

IJIS:

13,308,481 km²（February 1, 2016）lowest measured for the date.

jdallen · « **Reply #1798 on:** February 02, 2016, 07:44:57 AM »

Quote from: Espen on February 02, 2016, 05:42:25 AM

IJIS:

13,308,481 km²（February 1, 2016）lowest measured for the date.

Not. Good.

With the weather, I was really hoping it would rise in tandem with 2006. It would appear I was wrong.

Shared Humanity · « **Reply #1799 on:** February 02, 2016, 05:36:33 PM »

Wow! Just wow! 2016 is running away from the pack. The next couple of weeks will be interesting.

News:

Author Topic: IJIS (Read 2670982 times)

magnamentis

Shared Humanity

Shared Humanity

Shared Humanity