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BornFromTheVoid

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Re: 2014 sea ice area and extent data
« Reply #1100 on: November 09, 2014, 05:32:32 PM »
Update for the week to November 8th

The current 5 day mean is on 9,577,660km2 while the 1 day extent is at 9,651,740km2.

The daily anomaly (compared to 81-10) is at -483,320km2, a decrease from -609,130km2 last week. The anomaly compared to the 07, 11 and 12 average is at +688,450km2, a decrease from +805,380km2 last week. We're currently 9th lowest on record, compared to 8th last week.

The average daily change over the last 7 days was +93.4k/day, compared to the long term average of +76.0k/day, and the 07, 11 and 12 average of +110.7k/day.
The average long term change over the next week is +66.4k/day, with the 07, 11, and 12 average being +74.5k/day.

The increase so far this November is the 9th largest on record. For the largest total extent gain, an increase of at least 97.5k/day is required, while the smallest gain requires less than 48.1k/day and an average gain requires 61.0k/day.



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Jim Pettit

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Re: 2014 sea ice area and extent data
« Reply #1101 on: November 15, 2014, 02:25:23 PM »
IJIS Extent:
9,667,093 km2 (14 November)
Up 89,759 km2 from previous day.
Up 355,300 km2 over past seven days (daily average: 50,757 km2).
Up 852,368 km2 for the month of November (daily average: 60,883 km2).
181,081 km2 below 2000s average for this date.
400,802 km2 above 2010s average for this date.
299,089 km2 above 2013 value for this date.
875,939 km2 above 2012 value for this date.
8th lowest November to-date average.
8th lowest value for the date.
11 days this year (3.46% year-to-date) have recorded the lowest daily extent.
14 days (4.4%) have recorded the second lowest.
56 days (17.61%) have recorded the third lowest.
81 days (25.47%) in total have been among the three lowest on record.


CT Area:
8,261,429 km2 (14 November [Day 0.8685])
Up 94,477 km2 from previous day.
Up 304,991 km2 over past seven days (daily average: 43,570 km2).
Up 1,185,765 km2 for the month of November (daily average: 84,697 km2).
270,312 km2 below 2000s average for this date.
247,664 km2 above 2010s average for this date.
191,716 km2 above 2013 value for this date.
701,444 km2 above 2012 value for this date.
7th lowest November to-date average.
8th lowest value for the date.
12 days this year (3.77% year-to-date) have recorded the lowest daily area.
21 days (6.6%) have recorded the second lowest.
17 days (5.35%) have recorded the third lowest.
50 days in total (15.72%) have been among the lowest three on record.

BornFromTheVoid

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Re: 2014 sea ice area and extent data
« Reply #1102 on: November 16, 2014, 06:31:42 PM »
Update for the week to November 15th

The current 5 day mean is on 9,986,520km2 while the 1 day extent is at 10,125,420km2.

The daily anomaly (compared to 81-10) is at -539,540km2, an increase from -483,320km2 last week. The anomaly compared to the 07, 11 and 12 average is at +576,080km2, a decrease from +688,450km2 last week. We're currently 9th lowest on record, the same as last week.

The average daily change over the last 7 days was +58.4k/day, compared to the long term average of +66.4k/day, and the 07, 11 and 12 average of +74.5k/day.
The average long term change over the next week is +64.0k/day, with the 07, 11, and 12 average being +88.4k/day.

The increase so far this November is the 14th largest on record. For the largest total extent gain, an increase of at least 115.7k/day is required, while the smallest gain requires less than 4.8k/day and an average gain requires 62.2k/day.



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Jim Pettit

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Re: 2014 sea ice area and extent data
« Reply #1103 on: November 22, 2014, 02:56:13 PM »
IJIS Extent:
9,992,276 km2 (21 November)
Up 68,746 km2 from previous day.
Up 325,183 km2 over past seven days (daily average: 46,455 km2).
Up 1,177,551 km2 for the month of November (daily average: 56,074 km2).
294,166 km2 below 2000s average for this date.
209,606 km2 above 2010s average for this date.
34,222 km2 above 2013 value for this date.
412,747 km2 above 2012 value for this date.
8th lowest November to-date average.
8th lowest value for the date.
11 days this year (3.38% year-to-date) have recorded the lowest daily extent.
14 days (4.31%) have recorded the second lowest.
56 days (17.23%) have recorded the third lowest.
81 days (24.92%) in total have been among the three lowest on record.


CT Area:
8,466,633 km2 (16 November [Day 0.874])
Up 58,321 km2 from previous day.
Up 484,908 km2 over past seven days (daily average: 69,273 km2).
Up 1,390,969 km2 for the month of November (daily average: 86,936 km2).
164,743 km2 below 2000s average for this date.
208,826 km2 above 2010s average for this date.
97,082 km2 above 2013 value for this date.
673,204 km2 above 2012 value for this date.
8th lowest November to-date average.
   
8th lowest value for the date.
12 days this year (3.75% year-to-date) have recorded the lowest daily area.
21 days (6.56%) have recorded the second lowest.
17 days (5.31%) have recorded the third lowest.
50 days in total (15.63%) have been among the lowest three on record.
   

BornFromTheVoid

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Re: 2014 sea ice area and extent data
« Reply #1104 on: November 23, 2014, 05:05:55 PM »
Update for the week to November 22nd

The current 5 day mean is on 10,350,390km2 while the 1 day extent is at 10,450,570km2.

The daily anomaly (compared to 81-10) is at -623,550km2, an increase from -539,540km2 last week. The anomaly compared to the 07, 11 and 12 average is at +320,850km2, a decrease from +576,080km2 last week. We're currently 8th lowest on record, up from 9th lowest last week..

The average daily change over the last 7 days was +52.1k/day, compared to the long term average of +64.0k/day, and the 07, 11 and 12 average of +88.6k/day.
The average long term change over the next week is +71.8k/day, with the 07, 11, and 12 average being +74.7k/day.

The increase so far this November is the 17th smallest on record. For the largest total extent gain, an increase of at least 171.5k/day is required, while the smallest gain requires a loss of more than 36.5k/day and an average gain requires 71.1k/day.



I recently joined the twitter thing, where I post more analysis, pics and animations: @Icy_Samuel

Tor Bejnar

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Re: 2014 sea ice area and extent data
« Reply #1105 on: November 25, 2014, 02:35:04 AM »
I continue to appreciate your weekly graphs, BFTW, just as you publish them.  Thanks.

I've seen graphs comparing current rates of change that would help me put your 'Nov 2014 has the 17th smallest increase' into perspective by graphing the Extent 'deltas' from each year's Nov 1 (with a stretched vertical scale)- I think this would capture both the '17th lowest net slope this year' as well as making it easier to compare individually colored years (how does this month this year compare with same month in 2013, '12, '07, etc.)(With most lines quozy-parallel in your Nov. NSIDC Extent graph, it is hard for me to detect differences - maybe the differences are so little it doesn't matter?) 

On the '7 Day Extent Change' graph, with the yellow 2014-15 line mostly above the purple 2013-14, I presume that Nov 2013 average daily change to the 22nd was less then 2014.  Would my suggested graph show this?
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BornFromTheVoid

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Re: 2014 sea ice area and extent data
« Reply #1106 on: November 30, 2014, 06:04:19 PM »
Update for the week to November 29th


The current 5 day mean is on 11,052,400km2 while the 1 day extent is at 10,876,900km2.


The daily anomaly (compared to 81-10) is at -599,830km2, an decrease from -623,550km2 last week. The anomaly compared to the 07, 11 and 12 average is at +324,710km2, an increase from +320,850km2 last week. We're currently 8th lowest on record, same as last week.


The average daily change over the last 7 days was +75.2k/day, compared to the long term average of +71.8k/day, and the 07, 11 and 12 average of +74.7k/day.

The average long term change over the next week is +90.1k/day, with the 07, 11, and 12 average being +90.5k/day.


The increase so far this November is the 18th smallest on record. For the largest total extent gain, an increase of over 854.2k is needed for the final day, while the smallest gain requires a loss of more than 818.2k and an average gain requires 42.6k.



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BornFromTheVoid

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Re: 2014 sea ice area and extent data
« Reply #1107 on: November 30, 2014, 06:13:48 PM »
I continue to appreciate your weekly graphs, BFTW, just as you publish them.  Thanks.

I've seen graphs comparing current rates of change that would help me put your 'Nov 2014 has the 17th smallest increase' into perspective by graphing the Extent 'deltas' from each year's Nov 1 (with a stretched vertical scale)- I think this would capture both the '17th lowest net slope this year' as well as making it easier to compare individually colored years (how does this month this year compare with same month in 2013, '12, '07, etc.)(With most lines quozy-parallel in your Nov. NSIDC Extent graph, it is hard for me to detect differences - maybe the differences are so little it doesn't matter?) 

On the '7 Day Extent Change' graph, with the yellow 2014-15 line mostly above the purple 2013-14, I presume that Nov 2013 average daily change to the 22nd was less then 2014.  Would my suggested graph show this?

I think I get what you mean. I'll try play around with a few new graphs and post up some results during the week.
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Jim Pettit

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Re: 2014 sea ice area and extent data
« Reply #1108 on: December 03, 2014, 02:10:22 PM »
IJIS Extent:
10,953,020 km2 (02 December)
Up 117,192 km2 from previous day.
Up 637,416 km2 over past seven days (daily average: 91,059 km2).
Up 179,796 km2 for the month of December (daily average: 89,898 km2).
91,884 km2 below 2000s average for this date.
284,944 km2 above 2010s average for this date.
12,269 km2 below 2013 value for this date.
424,551 km2 above 2012 value for this date.
8th lowest December to-date average.
8th lowest value for the date.
11 days this year (3.27% year-to-date) have recorded the lowest daily extent.
14 days (4.17%) have recorded the second lowest.
56 days (16.67%) have recorded the third lowest.
81 days (24.11%) in total have been among the three lowest on record.


CT Area:
9,595,298 km2 (01 December [Day 0.915])
Up 52,132 km2 from previous day.
Up 539,154 km2 over past seven days (daily average: 77,022 km2).
Up 52,132 km2 for the month of December (daily average: 52,132 km2).
89,888 km2 below 2000s average for this date.
184,792 km2 above 2010s average for this date.
76,502 km2 below 2013 value for this date.
484,939 km2 above 2012 value for this date.
7th lowest December to-date average.
7th lowest value for the date.
12 days this year (3.58% year-to-date) have recorded the lowest daily area.
21 days (6.27%) have recorded the second lowest.
17 days (5.07%) have recorded the third lowest.
50 days in total (14.93%) have been among the lowest three on record.

viddaloo

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Re: 2014 sea ice area and extent data
« Reply #1109 on: December 03, 2014, 04:25:55 PM »
8th lowest December to-date average.
8th lowest value for the date.

6th lowest, according to my graph.
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Jim Pettit

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Re: 2014 sea ice area and extent data
« Reply #1110 on: December 03, 2014, 06:12:23 PM »
8th lowest December to-date average.
8th lowest value for the date.

6th lowest, according to my graph.

Which data are you using? My numbers come from here:

http://www.ijis.iarc.uaf.edu/seaice/extent/plot_v2.csv

...which shows the following line

12,02,12195666,11731207,11044904,11361354,11017314,11264560,10847873,10107765,10403475,11083844,10799912,10322333,10571268,10528469,10965289,10953020

So:

1) 2006
2) 2010
3) 2007
4) 2012
5) 2011
6) 2009
7) 2006
8) 2014

crandles

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Re: 2014 sea ice area and extent data
« Reply #1111 on: December 03, 2014, 06:31:23 PM »
2006 1st and 7th??? is one of these 2005?

looks like Viddaloo has only plotted 2007 onwards missing 2005? and 2006

viddaloo

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Re: 2014 sea ice area and extent data
« Reply #1112 on: December 03, 2014, 07:29:23 PM »
That's right, 2005 and 06 are in there. And yes, I forgot the pre–iPhone years could still compete in this game!  ;D

PS: I see now that 2006 starts a giant drop almost at the beginning of this graph (left), and thereby somehow prepares the record 2007 season. That's interesting.
« Last Edit: December 03, 2014, 07:39:34 PM by viddaloo »
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BornFromTheVoid

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Re: 2014 sea ice area and extent data
« Reply #1113 on: December 07, 2014, 11:15:25 PM »
Update for the week to December 6th


The current 5 day mean is on 11,644,410km2 while the 1 day extent is at 11,785,050km2.


The daily anomaly (compared to 81-10) is at -462,920km2, a decrease from -599,830km2 last week. The anomaly compared to the 07, 11 and 12 average is at +458,710km2, an increase from +324,710km2 last week. We're currently 11th lowest on record, down from 8th last week.



The average daily change over the last 7 days was +109.6k/day, compared to the long term average of +90.1k/day, and the 07, 11 and 12 average of +90.5k/day.



The average long term change over the next week is +67.7k/day, with the 07, 11, and 12 average being +80.2k/day.


The increase in November was the 18th largest on record out of 36 years.



The increase so far this December is the 6th largest on record. To achieve the largest recorded monthly increase a daily gain of over 85.9k/day is required, while the smallest requires less than 30.1k/day and an average requires 51.7k/day.

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Tor Bejnar

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Re: 2014 sea ice area and extent data
« Reply #1114 on: December 08, 2014, 04:12:11 AM »
Thank you, BFTV!
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viddaloo

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Re: 2014 sea ice area and extent data
« Reply #1115 on: December 10, 2014, 07:58:34 PM »
IJIS is down, so I need NSIDC extent data. Where to find?
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viddaloo

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Re: 2014 sea ice area and extent data
« Reply #1116 on: December 10, 2014, 09:50:17 PM »
Hmmmmm... «NOTICE: We are having technical difficulties receiving the input data for MASIE from the data provider. The issue is being investigated. Contact NSIDC User Services with questions.»

NSIDC's extent data end rather abruptly on day 316, which is November 12th, so there appears to be some sort of collapse in sea ice extent documentation. The odds of this occurring for weeks on end at NSIDC, and also occurring at IJIS, for purely non–political reasons are of course extremely low?
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Re: 2014 sea ice area and extent data
« Reply #1118 on: December 11, 2014, 12:48:32 AM »
ftp://sidads.colorado.edu/DATASETS/NOAA/G02135/north/daily/data/NH_seaice_extent_nrt.csv

Thx, Crandles!  ;D

PS: Huge increase, almost twice that of the day before (twice the delta). I guess that is the huge spread of ice between Greenland and Iceland, as seen on the Bremen map?

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Re: 2014 sea ice area and extent data
« Reply #1119 on: December 11, 2014, 01:02:29 AM »
/quote]

Thx, Crandles!  ;D

PS: Huge increase, almost twice that of the day before (twice the delta). I guess that is the huge spread of ice between Greenland and Iceland, as seen on the Bremen map?

That with almost complete certainty is false positive ice generated by the intense storm currently smashing into Great Britain.  Climate Reanalyzer had 80+ knot winds ripping south along that stretch of the Greenland coast a day or so ago.
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Jim Pettit

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Re: 2014 sea ice area and extent data
« Reply #1120 on: December 14, 2014, 02:52:49 PM »
IJIS Extent:
11,664,370 km2 (13 December)
Up 48,169 km2 from previous day.
Up 423,396 km2 over past seven days (daily average: 60,485 km2).
Up 891,146 km2 for the month of December (daily average: 68,550 km2).
203,231 km2 below 2000s average for this date.
168,378 km2 above 2010s average for this date.
69,182 km2 above 2013 value for this date.
345,882 km2 above 2012 value for this date.
9th lowest December to-date average.
9th lowest value for the date.
11 days this year (3.17% year-to-date) have recorded the lowest daily extent.
14 days (4.03%) have recorded the second lowest.
56 days (16.14%) have recorded the third lowest.
81 days (23.34%) in total have been among the three lowest on record.


CT Area:
10,491,339 km2 (10 December [Day 0.9397])
Up 22,207 km2 from previous day.
Up 675,628 km2 over past seven days (daily average: 96,518 km2).
Up 948,173 km2 for the month of December (daily average: 94,817 km2).
161,184 km2 above 2000s average for this date.
323,236 km2 above 2010s average for this date.
173,617 km2 above 2013 value for this date.
406,055 km2 above 2012 value for this date.
9th lowest December to-date average.
12th lowest value for the date.
12 days this year (3.49% year-to-date) have recorded the lowest daily area.
21 days (6.1%) have recorded the second lowest.
17 days (4.94%) have recorded the third lowest.
50 days in total (14.53%) have been among the lowest three on record.

BornFromTheVoid

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Re: 2014 sea ice area and extent data
« Reply #1121 on: December 14, 2014, 06:48:43 PM »
Update for the week to December 13th

The current 5 day mean is on 12,152,040km2 while the 1 day extent is at 12,228,490km2.

The daily anomaly (compared to 81-10) is at -429,000km2, a decrease from -462,920km2 last week. The anomaly compared to the 07, 11 and 12 average is at +405,027km2, a decrease from +458,710km2 last week. We're currently 10th lowest on record, down from 11th last week.



The average daily change over the last 7 days was +72.5k/day, compared to the long term average of +67.7k/day, and the 07, 11 and 12 average of +80.2k/day.
The average long term change over the next week is +61.0k/day, with the 07, 11, and 12 average being +64.0k/day.



The increase so far this December is the 10th largest on record. To achieve the largest recorded monthly increase, a daily gain of over 91.1k/day is required, while the smallest requires less than 13.5k/day and an average requires 43.6k/day.


I recently joined the twitter thing, where I post more analysis, pics and animations: @Icy_Samuel

Jim Pettit

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Re: 2014 sea ice area and extent data
« Reply #1122 on: December 20, 2014, 03:05:48 PM »
IJIS Extent:
12,049,547 km2 (19 December)
Up 50,014 km2 from previous day.
Up 433,346 km2 over past seven days (daily average: 61,907 km2).
Up 1,276,323 km2 for the month of December (daily average: 67,175 km2).
185,764 km2 below 2000s average for this date.
252,014 km2 above 2010s average for this date.
254,015 km2 above 2013 value for this date.
308,881 km2 above 2012 value for this date.
9th lowest December to-date average.
9th lowest value for the date.
11 days this year (3.12% year-to-date) have recorded the lowest daily extent.
14 days (3.97%) have recorded the second lowest.
56 days (15.86%) have recorded the third lowest.
81 days (22.95%) in total have been among the three lowest on record.


CT Area:
10,898,918 km2 (18 December [Day 0.9617])
Up 106,927 km2 from previous day.
Up 429,787 km2 over previous seven days (daily average: 61,398 km2).
Up 1,355,752 km2 for the month of December (daily average: 75,320 km2).
13,904 km2 below 2000s average for this date.
239,569 km2 above 2010s average for this date.
46,846 km2 above 2013 value for this date.
476,631 km2 above 2012 value for this date.
8th lowest December to-date average.
10th lowest value for the date.
12 days this year (3.41% year-to-date) have recorded the lowest daily area.
21 days (5.97%) have recorded the second lowest.
17 days (4.83%) have recorded the third lowest.
50 days in total (14.2%) have been among the lowest three on record.

BornFromTheVoid

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Re: 2014 sea ice area and extent data
« Reply #1123 on: December 21, 2014, 04:25:58 PM »
Update for the week to December 20th


The current 5 day mean is on 12,471,250km2 while the 1 day extent is at 12,608,090km2.


The daily anomaly (compared to 81-10) is at -536,670km2, an increase from -429,000km2 last week. The anomaly compared to the 07, 11 and 12 average is at +276,130km2, a decrease from +405,027km2 last week. We're currently 10th lowest on record, the same as last week.




The average daily change over the last 7 days was +45.6k/day, compared to the long term average of +61.0k/day, and the 07, 11 and 12 average of +64.0k/day.

The average long term change over the next week is +51.5k/day, with the 07, 11, and 12 average being +67.7k/day.




The increase so far this December is the 14th largest on record. To achieve the largest recorded monthly increase, a daily gain of over 120.1k/day is required, while the smallest requires a loss of more than 6.9k/day and an average requires 42.4k/day.


I recently joined the twitter thing, where I post more analysis, pics and animations: @Icy_Samuel

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Re: 2014 sea ice area and extent data
« Reply #1124 on: December 27, 2014, 03:00:19 PM »
IJIS Extent:
12,458,534 km2 (26 December)
Up 37,641 km2 from previous day.
Up 408,987 km2 over past seven days (daily average: 58,427 km2).
Up 1,685,310 km2 for the month of December (daily average: 64,820 km2).
163,266 km2 below 2000s average for this date.
316,198 km2 above 2010s average for this date.
314,317 km2 above 2013 value for this date.
330,208 km2 above 2012 value for this date.
9th lowest December to-date average.
11th lowest value for the date.
11 days this year (3.06% year-to-date) have recorded the lowest daily extent.
14 days (3.89%) have recorded the second lowest.
56 days (15.56%) have recorded the third lowest.
81 days (22.5%) in total have been among the three lowest on record.


CT Area:
11,448,896 km2 (26 December [Day 0.9835])
Up 129,541 km2 from previous day.
Up 457,100 km2 over past seven days (daily average: 65,300 km2).
Up 1,905,730 km2 for the month of December (daily average: 73,297 km2).
14,509 km2 above 2000s average for this date.
336,552 km2 above 2010s average for this date.
195,977 km2 above 2013 value for this date.
666,966 km2 above 2012 value for this date.
9th lowest December to-date average.
9th lowest value for the date.
12 days this year (3.33% year-to-date) have recorded the lowest daily area.
21 days (5.83%) have recorded the second lowest.
17 days (4.72%) have recorded the third lowest.
50 days in total (13.89%) have been among the lowest three on record.

BornFromTheVoid

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Re: 2014 sea ice area and extent data
« Reply #1125 on: December 28, 2014, 08:04:51 PM »
Update for the week to December 27th

The current 5 day mean is on 12,905,200km2 while the 1 day extent is at 12,965,490km2.

The daily anomaly (compared to 81-10) is at -463,100km2, a decrease from -536,670km2 last week. The anomaly compared to the 07, 11 and 12 average is at +235,980km2, a decrease from +276,130km2 last week. We're currently 11th lowest on record, compared to 10th last week.



The average daily change over the last 7 days was +62.2k/day, compared to the long term average of +51.5k/day, and the 07, 11 and 12 average of +67.7k/day.

The average long term change over the next week is +54.3k/day, with the 07, 11, and 12 average being +53.5k/day.



The increase so far this December is the 13th largest on record. To achieve the largest recorded monthly increase, a daily gain of over 221.6k/day is required, while the smallest requires a loss of more than 127.4k/day and an average requires +8.1k/day.

I recently joined the twitter thing, where I post more analysis, pics and animations: @Icy_Samuel

Jim Pettit

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Re: 2014 sea ice area and extent data
« Reply #1126 on: January 01, 2015, 04:43:57 PM »
IJIS Extent:
12,471,148 km2 (31 December)
Down 3,701 km2 from previous day.
Up 118,065 km2 over past seven days (daily average: 16,866 km2).
Up 1,697,924 km2 for the month of December (daily average: 54,772 km2).
341,127 km2 below 2000s average for this date.
47,955 km2 above 2010s average for this date.
129,896 km2 above 2013 value for this date.
43,013 km2 above 2012 value for this date.
6th lowest overall December average.
4th lowest value for the date.
11 days this year (3.01% year-to-date) have recorded the lowest daily extent.
14 days (3.84%) have recorded the second lowest.
56 days (15.34%) have recorded the third lowest.
81 days (22.19%) in total have been among the three lowest on record.


CT Area:
11,462,716 km2 (31 December [Day 0.9973])
Down 82,312 km2 from previous day. (NOTE: largest one-day decrease since 23 Sep.)
Up 205,784 km2 over past seven days (daily average: 29,398 km2).
Up 1,919,550 km2 for the month of December (daily average: 61,921 km2).
185,658 km2 below 2000s average for this date.
73,576 km2 above 2010s average for this date.
194,614 km2 below 2013 value for this date.
212,347 km2 above 2012 value for this date.
9th lowest overall December average.
5th lowest value for the date.
12 days this year (3.29% year-to-date) have recorded the lowest daily area.
21 days (5.75%) have recorded the second lowest.
17 days (4.66%) have recorded the third lowest.
50 days in total (13.7%) have been among the lowest three on record.

BornFromTheVoid

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Re: 2014 sea ice area and extent data
« Reply #1127 on: January 04, 2015, 07:50:19 PM »
Update for the week to January 3rd

The current 5 day mean is on 13,037,600km2 while the 1 day extent is at 13,050,400km2.

The daily anomaly (compared to 81-10) is at -710,630km2, an increase from -463,100km2 last week. The anomaly compared to the 07, 11 and 12 average is at -6,010km2, a decrease from +235,980km2 last week. We're currently 4th lowest on record, compared to 11th last week.




The average daily change over the last 7 days was +9.9k/day, compared to the long term average of +54.3k/day, and the 07, 11 and 12 average of +53.3k/day.

The average long term change over the next week is +49.5k/day, with the 07, 11, and 12 average being +41.1k/day.



The increase so far this January is the smallest on record. To achieve the largest recorded monthly increase, a daily gain of over 60.3k/day is required, while the smallest requires a gain of less than 25.5k/day and an average requires +40.8k/day.



December 2014 saw the 17th largest increase on record



I recently joined the twitter thing, where I post more analysis, pics and animations: @Icy_Samuel

Tor Bejnar

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Re: 2014 sea ice area and extent data
« Reply #1128 on: January 05, 2015, 03:40:52 AM »
I continue to appreciate your work, BFTV (and others). I don't have anything to add to the discussion, so I do lots of lurking.  Have a great year.
Arctic ice is healthy for children and other living things.

Jim Pettit

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Re: 2014 sea ice area and extent data
« Reply #1129 on: January 05, 2015, 07:11:35 PM »

CT Area:
11,561,686 km2 (04 January [Day 0.0082])
9,327,676 km2 above record minimum area of 2,234,010 km2 (14 September 2012).
Up 20,980 km2 from previous day.
Up 98,970 km2 for the month of January (daily average: 24,742 km2).
326,467 km2 below 2000s average for this date.
8,875 km2 below 2010s average for this date.
258,036 km2 below 2014 value for this date.
322,468 km2 below 2012 value for this date.
5th lowest January to-date average.
4th lowest value for the date.
0 days this year (0% year-to-date) have recorded the lowest daily area.
0 days (0%) have recorded the second lowest.
0 days (0%) have recorded the third lowest.
0 days in total (0%) have been among the lowest three on record.

IJIS Extent:
12,519,283 km2 (04 January)
9,341,828 km2 above record minimum extent of 3,177,455 km2 (16 September 2012).
Up 19,425 km2 from previous day.
Up 40,250 km2 for the month of January (daily average: 10,063 km2).
514,574 km2 below 2000s average for this date.
45,866 km2 below 2010s average for this date.
7,885 km2 below 2014 value for this date.
241,281 km2 below 2012 value for this date.
3rd lowest January to-date average.
3rd lowest value for the date.
0 days this year (0% year-to-date) have recorded the lowest daily extent.
0 days (0%) have recorded the second lowest.
3 days (75%) have recorded the third lowest.
3 days (75%) in total have been among the three lowest on record.
« Last Edit: January 05, 2015, 07:27:46 PM by Jim Pettit »

crandles

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Re: 2014 sea ice area and extent data
« Reply #1130 on: January 05, 2015, 07:23:07 PM »

CT Area:
11,561,686 km2 (04 January [Day 0.0082])
5th lowest value for the date.

2011.0082  -1.1869723  11.2277555
2010.0082  -0.9743038  11.4404240
2013.0082  -0.9251038  11.4896240
2015.0082  -0.8530422  11.5616856 4th?
2007.0082  -0.8472744  11.5674534

Am I missing a year or something?
4th or 5th lowest value for the date?

Jim Pettit

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Re: 2014 sea ice area and extent data
« Reply #1131 on: January 05, 2015, 07:29:55 PM »

CT Area:
11,561,686 km2 (04 January [Day 0.0082])
5th lowest value for the date.

2011.0082  -1.1869723  11.2277555
2010.0082  -0.9743038  11.4404240
2013.0082  -0.9251038  11.4896240
2015.0082  -0.8530422  11.5616856 4th?
2007.0082  -0.8472744  11.5674534

Am I missing a year or something?
4th or 5th lowest value for the date?

Nah, you missed nothing. That particular line is the only one in the summary that isn't yet automated, and I inadvertently mis-typed the daily rank. The 1st and the 4th were 4th place, while the 2nd and the 3rd were in 5th. Apologies for the error...  ;)
« Last Edit: January 08, 2015, 10:13:54 PM by Jim Pettit »

Jim Pettit

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Re: 2014 sea ice area and extent data
« Reply #1132 on: January 07, 2015, 02:30:32 PM »

CT Area:
11,636,671 km2 (06 January [Day 0.0137])
9,402,662 km2 above record minimum area of 2,234,010 km2 (14 September 2012).
Down 21,091 km2 from previous day.
Up 173,955 km2 for the month of January (daily average: 28,992 km2).
344,930 km2 below 2000s average for this date.
38,906 km2 below 2010s average for this date.
273,081 km2 below 2014 value for this date.
352,853 km2 below 2012 value for this date.
5th lowest January to-date average.
4th lowest value for the date.
0 days this year (0% year-to-date) have recorded the lowest daily area.
0 days (0%) have recorded the second lowest.
0 days (0%) have recorded the third lowest.
0 days in total (0%) have been among the lowest three on record.

IJIS Extent:
12,545,921 km2 (06 January)
9,368,466 km2 above record minimum extent of 3,177,455 km2 (16 September 2012).
Up 33,705 km2 from previous day.
Up 146,485 km2 for the month of January (daily average: 24,414 km2).
499,261 km2 below 2000s average for this date.
41,360 km2 below 2010s average for this date.
71,712 km2 above 2014 value for this date.
216,419 km2 below 2012 value for this date.
4th lowest January to-date average.
4th lowest value for the date.
0 days this year (0% year-to-date) have recorded the lowest daily extent.
0 days (0%) have recorded the second lowest.
3 days (50%) have recorded the third lowest.
3 days (50%) in total have been among the three lowest on record.


Jim Pettit

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Re: 2014 sea ice area and extent data
« Reply #1133 on: January 08, 2015, 01:00:57 PM »

CT Area:
11,696,917 km2 (07 January [Day 0.0165])
9,462,907 km2 above record minimum area of 2,234,010 km2 (14 September 2012).
Up 60,246 km2 from previous day.
Up 234,201 km2 over past seven days (daily average: 33,457 km2).
Up 234,201 km2 for the month of January (daily average: 33,457 km2).
343,781 km2 below 2000s average for this date.
32,963 km2 below 2010s average for this date.
129,944 km2 below 2014 value for this date.
410,131 km2 below 2012 value for this date.
4th lowest January to-date average.
3rd lowest value for the date.
0 days this year (0% year-to-date) have recorded the lowest daily area.
0 days (0%) have recorded the second lowest.
1 day (14.29%) has recorded the third lowest.
1 day in total (14.29%) has been among the lowest three on record.

IJIS Extent:
12,562,469 km2 (07 January)
9,385,014 km2 above record minimum extent of 3,177,455 km2 (16 September 2012).
Down 34,913 km2 from previous day.
Up 111,572 km2 over past seven days (daily average: 15,939 km2).
Up 111,572 km2 for the month of January (daily average: 15,939 km2).
583,321 km2 below 2000s average for this date.
107,200 km2 below 2010s average for this date.
20,251 km2 above 2014 value for this date.
314,500 km2 below 2012 value for this date.
4th lowest January to-date average.
2nd lowest value for the date.
0 days this year (0% year-to-date) have recorded the lowest daily extent.
1 day (14.29%) has recorded the second lowest.
3 days (42.86%) have recorded the third lowest.
4 days (57.14%) in total have been among the three lowest on record.

Jim Pettit

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Re: 2014 sea ice area and extent data
« Reply #1134 on: January 09, 2015, 01:14:33 PM »

CT Area:
11,727,834 km2 (08 January [Day 0.0192])
9,493,824 km2 above record minimum area of 2,234,010 km2 (14 September 2012).
Up 30,917 km2 from previous day.
Up 236,345 km2 over past seven days (daily average: 33,764 km2).
Up 265,118 km2 for the month of January (daily average: 33,140 km2).
355,392 km2 below 2000s average for this date.
57,213 km2 below 2010s average for this date.
138,311 km2 below 2014 value for this date.
461,320 km2 below 2012 value for this date.
4th lowest January to-date average.
3rd lowest value for the date.
0 days this year (0% year-to-date) have recorded the lowest daily area.
0 days (0%) have recorded the second lowest.
2 days (25%) have recorded the third lowest.
2 days in total (25%) have been among the lowest three on record.

IJIS Extent:
12,582,981 km2 (08 January)
9,405,526 km2 above record minimum extent of 3,177,455 km2 (16 September 2012).
Down 9,953 km2 from previous day.
Up 68,212 km2 over past seven days (daily average: 9,745 km2).
Up 101,619 km2 for the month of January (daily average: 12,702 km2).
634,021 km2 below 2000s average for this date.
140,998 km2 below 2010s average for this date.
10,214 km2 below 2014 value for this date.
437,247 km2 below 2012 value for this date.
4th lowest January to-date average.
2nd lowest value for the date.
0 days this year (0% year-to-date) have recorded the lowest daily extent.
2 days (25%) have recorded the second lowest.
3 days (37.5%) have recorded the third lowest.
5 days (62.5%) in total have been among the three lowest on record.

Neven

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Re: 2014 sea ice area and extent data
« Reply #1135 on: January 10, 2015, 12:22:19 AM »
Il faut comparer, comparer, comparer, et cultiver notre jardin