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gerontocrat

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Re: 2022 Sea ice area and extent data
« Reply #750 on: September 13, 2022, 04:28:47 PM »
JAXA ARCTIC SEA ICE EXTENT:  4,631,065 KM2 as at 12-Sep-2022

- Extent loss on this day 30k, 16 k more than the average loss on this day (of the last 10 years) of 14k,
- Extent loss from maximum on this date is 9,763 k, which is 189 k, 1.9% less than the 10 year average of 9,952 k.

- Extent is at position #12 in the 44 year satellite record

- Extent is  18 k MORE than 2021,
- Extent is  1,067 k MORE than 2020,
- Extent is  544 k MORE than  2019,
- Extent is  428 k MORE than 2016
- Extent is  1,424 k MORE than 2012
- Extent is  261 k MORE than the 2010's Average
_____________________________________________
On average 99.6% of extent losses from maximum to minimum done, and on average 2 days to minimum

Projections. (Table JAXA-Arc1)

Average remaining extent loss (of the last 10 years) would produce a minimum in September 2022 of 4.59 million km2, 1.42 million km2 above the Sept 2012 record low minimum of 3.18 million km2, and 11th lowest in the satellite record
_______________________________________________________________
N.B. Click on images to enlarge
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gerontocrat

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Re: 2022 Sea ice area and extent data
« Reply #751 on: September 13, 2022, 07:41:47 PM »
NSIDC  ARCTIC SEA ICE AREA (5-day trailing average):  3,217,468 KM2 as at 12-Sep-2022

- Area loss on this day 9k, 19 k more than the average gain on this day (of the last 10 years) of 10k,
- Area loss from maximum on this date is 9,857 k, which is 161 k, 1.6% less than the 10 year average of 10,017 k.

- Area is at position #11 in the satellite record

- Area is  196 k LESS than 2021,
- Area is  451 k MORE than 2020,
- Area is  586 k MORE than 2016
- Area is  941 k MORE than 2012
- Area is  152 k MORE than the 2010's Average
_____________________________________________
On average 99.9% of Area losses  from maximum to minimum done, and -2 days to minimum

Projections.

Average remaining Area loss (of the last 10 years) would produce a minimum in Sept 2022 of 3.21 million km2, 0.96 million km2 above the Sept 2012 record low maximum of 2.25 million km2, and 11th lowest in the 44 year satellite record.
_______________________________________________________________
The first table attached shows we must be close to the minimum - but Nico Sun's DAILY area graph showed a 46k loss on this day. What a tease.
_______________________________________________________________
N.B. Click on image to enlarge
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phelan

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Re: 2022 Sea ice area and extent data
« Reply #752 on: September 14, 2022, 07:06:15 AM »
Jaxa extent today at 4,602,665 km2, a drop of 28,400 km2

2022 extent drops below 2021 and 2010 minimum extent.

« Last Edit: September 14, 2022, 07:12:05 AM by oren »

gerontocrat

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Re: 2022 Sea ice area and extent data
« Reply #753 on: September 14, 2022, 11:08:44 AM »
JAXA ARCTIC SEA ICE EXTENT:  4,602,665 KM2 as at 13-Sep-2022

- Extent loss on this day 28k, 24 k more than the average loss on this day (of the last 10 years) of 4k,
- Extent loss from maximum on this date is 9,791 k, which is 165 k, 1.7% less than the 10 year average of 9,956 k.

- Extent is at position #11 in the 44 year satellite record

- Extent is  24 k LESS than 2021,
- Extent is  1,048 k MORE than 2020,
- Extent is  549 k MORE than  2019,
- Extent is  363 k MORE than 2016
- Extent is  1,402 k MORE than 2012
- Extent is  234 k MORE than the 2010's Average
_____________________________________________
On average 99.7% of extent losses from maximum to minimum done, and on average 1 days to minimum

Projections. (Table JAXA-Arc1)

Average remaining extent loss (of the last 10 years) would produce a minimum in September 2022 of 4.58 million km2, 1.40 million km2 above the Sept 2012 record low minimum of 3.18 million km2, and 11th lowest in the satellite record
_________________________
If further 2022 sea ice loss repeats that of 2018 the minimum would be below 4.5 million kmw. (Unlikely)
_______________________________________________________________
N.B. Click on images to enlarge
« Last Edit: September 14, 2022, 11:14:30 AM by gerontocrat »
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gerontocrat

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Re: 2022 Sea ice area and extent data
« Reply #754 on: September 14, 2022, 05:30:23 PM »
NSIDC  ARCTIC SEA ICE AREA (5-day trailing average):  3,217,388 KM2 as at 13-Sep-2022

- Area loss on this day 0k, 14 k more than the average gain on this day (of the last 10 years) of 14k,
- Area loss from maximum on this date is 9,857 k, which is 146 k, 1.5% less than the 10 year average of 10,003 k.

- Area is at position #10 in the satellite record

- Area is  222 k LESS than 2021,
- Area is  449 k MORE than 2020,
- Area is  511 k MORE than 2016
- Area is  958 k MORE than 2012
- Area is  135 k MORE than the 2010's Average
_____________________________________________
On average 99.9% of Area losses  from maximum to minimum done, and -3 days to minimum

Projections.

Average remaining Area loss (of the last 10 years) would produce a minimum in Sept 2022 of 3.21 million km2, 0.96 million km2 above the Sept 2012 record low maximum of 2.25 million km2, and 11th lowest in the 44 year satellite record.
_______________________________________________________________
N.B. Click on image to enlarge
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etienne

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Re: 2022 Sea ice area and extent data
« Reply #755 on: September 15, 2022, 06:27:01 AM »
This morning, just a redirection toward Twitter on https://ads.nipr.ac.jp/vishop/#/extent.

gerontocrat

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Re: 2022 Sea ice area and extent data
« Reply #756 on: September 15, 2022, 11:43:29 AM »
JAXA ARCTIC SEA ICE EXTENT:  4,562,202 KM2 as at 14-Sep-2022

- Extent loss on this day 40k, 45 k more than the average gain on this day (of the last 10 years) of 5k,
- Extent loss from maximum on this date is 9,832 k, which is 119 k, 1.2% less than the 10 year average of 9,951 k.

- Extent is at position #10 in the 44 year satellite record

- Extent is  106 k LESS than 2021,
- Extent is  980 k MORE than 2020,
- Extent is  536 k MORE than  2019,
- Extent is  293 k MORE than 2016
- Extent is  1,365 k MORE than 2012
- Extent is  191 k MORE than the 2010's Average
_____________________________________________
On average 99.8% of extent losses from maximum to minimum done, and on average 0 days to minimum

Projections. (Table JAXA-Arc1)

Average remaining extent loss (of the last 10 years) would produce a minimum in September 2022 of 4.54 million km2, 1.36 million km2 above the Sept 2012 record low minimum of 3.18 million km2, and 11th lowest in the satellite record
_______________________________________________________________
N.B. Click on images to enlarge
"Para a Causa do Povo a Luta Continua!"
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gerontocrat

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Re: 2022 Sea ice area and extent data
« Reply #757 on: September 15, 2022, 04:32:07 PM »
NSIDC  ARCTIC SEA ICE AREA (5-day trailing average):  3,227,369 KM2 as at 14-Sep-2022

- Area gain on this day 10k, 7 k less than the average gain on this day (of the last 10 years) of 17k,
- Area loss from maximum on this date is 9,847 k, which is 139 k, 1.4% less than the 10 year average of 9,986 k.

- Area is at position #10 in the satellite record

- Area is  233 k LESS than 2021,
- Area is  482 k MORE than 2020,
- Area is  466 k MORE than 2016
- Area is  976 k MORE than 2012
- Area is  120 k MORE than the 2010's Average
_____________________________________________
Projections.

Maybe the minimum sea ice area was reached on the 13th @ 3,217,388 km2, although sea ice extent is still reducing
_______________________________________________________________
N.B. Click on image to enlarge
"Para a Causa do Povo a Luta Continua!"
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gerontocrat

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Re: 2022 Sea ice area and extent data
« Reply #758 on: September 15, 2022, 05:28:01 PM »
NSIDC DAILY ARCTIC SEA ICE EXTENT:  4,681,000 KM2 as at 14-Sep-2022

- Extent loss on this day 27k, 28 k more (or is it less?) than the average gain on this day (of the last 10 years) of 1k,
- Extent loss from maximum on this date is 10,252 k, which is 139 k, 1% less than the 10 year average of 10,391 k.

- Extent is at position #10 in the satellite record

- Extent is  76 k LESS than 2021,
- Extent is  835 k MORE than  2020,
- Extent is  296 k MORE than 2016
- Extent is  1,273 k MORE than 2012
- Extent is  159 k MORE than the 2010's Average
_____________________________________________
On average 99.7% of extent losses  from maximum to minimum done, and 1 days to minimum

Projections. (Table NSIDC-Extent-1)

Average remaining extent loss (of the last 10 years) would produce a minimum in September 2021 of 4.65 million km2, 1.31 million km2 above the Sept 2012 record low minimum of 3.34 million km2.
_______________________________________________________________
N.B. Click on image to enlarge
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Stephan

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Re: 2022 Sea ice area and extent data
« Reply #759 on: September 16, 2022, 07:04:30 AM »
Sep 15, 2022 JAXA sea ice extent 4.53 M km², a drop of 0.03 M km². 2022 is now at #9 in the list.

The leaders are
2012    3.18 M km²
2020    3.61 M km²
2019    4.01 M km²
2007    4.07 M km²
2016    4.25 M km²
2015    4.35 M km²
(2010s 4.38 M km²)
2011    4.44 M km²
2008    4.52 M km²
2022    4.53 M km²
2017    4.54 M km²
2018    4.55 M km²
2021    4.71 M km²
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gerontocrat

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Re: 2022 Sea ice area and extent data
« Reply #760 on: September 16, 2022, 12:43:58 PM »
JAXA ARCTIC SEA ICE EXTENT:  4,532,723 KM2 as at 15-Sep-2022

- Extent loss on this day 29k, 41 k more than the average gain on this day (of the last 10 years) of 12k,
- Extent loss from maximum on this date is 9,861 k, which is 78 k, 0.8% less than the 10 year average of 9,939 k.

- Extent is at position #9 in the 44 year satellite record

- Extent is  172 k LESS than 2021,
- Extent is  927 k MORE than 2020,
- Extent is  527 k MORE than  2019,
- Extent is  280 k MORE than 2016
- Extent is  1,354 k MORE than 2012
- Extent is  153 k MORE than the 2010's Average
_____________________________________________
On average 99.9% of extent losses from maximum to minimum done, and on average 1 day after the minimum.

Projections. (Table JAXA-Arc1)

No longer a useful exercise
_______________________________________________________________
N.B. Click on images to enlarge
"Para a Causa do Povo a Luta Continua!"
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gerontocrat

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Re: 2022 Sea ice area and extent data
« Reply #761 on: September 16, 2022, 03:00:34 PM »
NSIDC  ARCTIC SEA ICE AREA (5-day trailing average):  3,230,230 KM2 as at 15-Sep-2022

- Area gain on this day 3k, 14 k more than the average gain on this day (of the last 10 years) of 17k,
- Area loss from maximum on this date is 9,844 k, which is 125 k, 1.3% less than the 10 year average of 9,969 k.

- Area is at position #10 in the satellite record

- Area is  245 k LESS than 2021,
- Area is  508 k MORE than 2020,
- Area is  437 k MORE than 2016
- Area is  981 k MORE than 2012
- Area is  95 k MORE than the 2010's Average
_____________________________________________
On average 100.0% of Area losses  from maximum to minimum done, and 5 days after the average date of the minimum

Projections.

Maybe the minimum sea ice area was reached on the 13th @ 3,217,388 km2, although sea ice extent is still reducing. This would make the minimum 11th lowest in the 44 year satellite record.

_______________________________________________________________
N.B. Click on image to enlarge
"Para a Causa do Povo a Luta Continua!"
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gerontocrat

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Re: 2022 Sea ice area and extent data
« Reply #762 on: September 17, 2022, 08:05:46 AM »
JAXA ARCTIC SEA ICE EXTENT:  4,523,941 KM2 as at 16-Sep-2022

- Extent loss on this day 9k, 12 k more than the average gain on this day (of the last 10 years) of 3k,
- Extent loss from maximum on this date is 9,870 k, which is 65 k, 0.7% less than the 10 year average of 9,935 k.

- Extent is at position #10 in the 44 year satellite record

- Extent is  204 k LESS than 2021,
- Extent is  894 k MORE than 2020,
- Extent is  533 k MORE than  2019,
- Extent is  291 k MORE than 2016
- Extent is  1,346 k MORE than 2012
- Extent is  154 k MORE than the 2010's Average
_____________________________________________
On average 99.9% of extent losses from maximum to minimum done, and on average -2 days to minimum

Projections. (Table JAXA-Arc1)

Average remaining extent loss (of the last 10 years) would produce a minimum in September 2022 of 4.52 million km2, 1.34 million km2 above the Sept 2012 record low minimum of 3.18 million km2, and 11th lowest in the satellite record
_______________________________________________________________
N.B. Click on images to enlarge
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weatherdude88

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Re: 2022 Sea ice area and extent data
« Reply #763 on: September 17, 2022, 03:06:22 PM »
For 9.16, NSIDC sea ice area daily is now 131,000 square kilometers above the minimum value. 9.16 has a value of 3,323,562 square kilometers. An increase of 41,000 square kilometers from the previous day.

gerontocrat

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Re: 2022 Sea ice area and extent data
« Reply #764 on: September 17, 2022, 04:08:04 PM »
NSIDC  ARCTIC SEA ICE AREA (5-day trailing average):  3,240,991 KM2 as at 16-Sep-2022

- Area loss on this day 1k, 19 k less than the average gain on this day (of the last 10 years) of 18k,
- Area loss from maximum on this date is 9,833 k, which is 118 k, 1.2% less than the 10 year average of 9,951 k.

- Area is at position #10 in the satellite record

- Area is  246 k LESS than 2021,
- Area is  549 k MORE than 2020,
- Area is  429 k MORE than 2016
- Area is  991 k MORE than 2012
- Area is  76 k MORE than the 2010's Average
_____________________________________________
On average 100.0% of Area losses  from maximum to minimum done, and -6 days to minimum

Projections.

Normally by now I would be showing projections of next year's sea ice area maximum, but sea ice extent continues to fall and that Bering Sea storm, if it and sea swells and waves keep some power after passing through the Bering Strait, could spring a late surprise.
_______________________________________________________________
N.B. Click on image to enlarge
« Last Edit: September 18, 2022, 08:41:02 AM by gerontocrat »
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weatherdude88

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Re: 2022 Sea ice area and extent data
« Reply #765 on: September 18, 2022, 02:58:54 AM »
NSIDC  ARCTIC SEA ICE AREA (5-day trailing average):  3,230,230 KM2 as at 15-Sep-2022

- Area gain on this day 3k,

NSIDC  ARCTIC SEA ICE AREA (5-day trailing average):  3,240,991 KM2 as at 16-Sep-2022

- Area loss on this day 1k

Your data excel calculations of 5-day trailing NSIDC area are showing a 3k gain on 9.15.2022 with a value of 3.230230 million KM2. For 9.16.2022 (day later) you reported a loss of 1k with a higher value of 3.240991 million KM2.

Tom Stedman

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Re: 2022 Sea ice area and extent data
« Reply #766 on: September 18, 2022, 08:01:36 AM »
JAXA extent 4,527K, an increase of about 3.5K on yesterday.
Has the minimum arrived? The next few days might tell.

gerontocrat

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Re: 2022 Sea ice area and extent data
« Reply #767 on: September 18, 2022, 08:13:58 AM »
JAXA ARCTIC SEA ICE EXTENT:  4,527,435 KM2 as at 17-Sep-2022

- Extent gain on this day 3k, 17 k less than the average gain on this day (of the last 10 years) of 20k,
- Extent loss from maximum on this date is 9,867 k, which is 48 k, 0.5% less than the 10 year average of 9,915 k.

- Extent is at position #10 in the 44 year satellite record

- Extent is  214 k LESS than 2021,
- Extent is  793 k MORE than 2020,
- Extent is  563 k MORE than  2019,
- Extent is  234 k MORE than 2016
- Extent is  1,314 k MORE than 2012
- Extent is  155 k MORE than the 2010's Average
_____________________________________________
On average 100.0% of extent losses from maximum to minimum done, and on average 3 days after the minimum

Projections. (Table JAXA-Arc1)

Is that it? Is that all you've got?

Minmum  4,523,941  16th Sept 2022 ?
_______________________________________________________________
N.B. Click on images to enlarge
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oren

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Re: 2022 Sea ice area and extent data
« Reply #768 on: September 18, 2022, 09:03:39 AM »
Just for the record, barring surprises minimum NSIDC area single day values occurred on Sep 12th at 3.192 million km2, according to Cryosphere Computing.

Brigantine

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Re: 2022 Sea ice area and extent data
« Reply #769 on: September 18, 2022, 09:55:43 AM »
Just for the record, barring surprises minimum NSIDC area single day values occurred on Sep 12th at 3.192 million km2, according to Cryosphere Computing.
Does that make it a top to year by that measure?

Stephan

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Re: 2022 Sea ice area and extent data
« Reply #770 on: September 18, 2022, 02:45:11 PM »
I added the monthly extent value for August 2022 into my long-term plot where I calculate the extent anomalies from 1979 up to now.
The average (1979-2022) August extent is now 6.78 M km². August 2022 had an average extent of 6.00 M km², which is 0.78 M km² less than that long-term average.
This month's value was again above the long-term linear trend line (very unusual for an August!). The difference of the actual month from that trend line is +0.45 M km² (calculated from the linear trend line this August should have been at 5.55 M km²).
The slope of the long-term linear trend line has become flatter by one digit (-0.0536 → 0.0535).

See attached graph. Click to enlarge it.
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weatherdude88

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Re: 2022 Sea ice area and extent data
« Reply #771 on: September 18, 2022, 03:09:05 PM »
For 9.17, NSIDC sea ice area daily is now 215,000 square kilometers above the minimum value. 9.17 has a value of 3,407,717 square kilometers. An increase of 84,000 square kilometers from the previous day.



gerontocrat

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Re: 2022 Sea ice area and extent data
« Reply #772 on: September 18, 2022, 06:57:14 PM »
NSIDC  ARCTIC SEA ICE AREA (5-day trailing average):  3,273,319 KM2 as at 17-Sep-2022

- Area gain on this day 14k, 7 k less than the average gain on this day (of the last 10 years) of 21k,

- Area is at position #9 in the satellite record

- Area is  226 k LESS than 2021,
- Area is  590 k MORE than 2020,
- Area is  457 k MORE than 2016
- Area is  1,009 k MORE than 2012
- Area is  79 k MORE than the 2010's Average

Projections.

Altough sea ice extent may still be reducing it really does look like the minimum Arctic sea ice AREA was reached on 13th September @  3,217,388 km2.
___________________________________________________________
N.B. Click on image to enlarge
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Tom Stedman

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Re: 2022 Sea ice area and extent data
« Reply #773 on: September 19, 2022, 07:24:57 AM »
JAXA sea ice extent 4,557k for 18th of September, an increase of 30k.
Starting to look like the minimum has passed!

gerontocrat

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Re: 2022 Sea ice area and extent data
« Reply #774 on: September 19, 2022, 07:53:41 AM »
JAXA ARCTIC SEA ICE EXTENT:  4,557,431 KM2 as at 18-Sep-2022

- Extent gain on this day 30k, 8 k less than the average gain on this day (of the last 10 years) of 38k,

- Extent is at position #10 in the 44 year satellite record

- Extent is  231 k LESS than 2021,
- Extent is  812 k MORE than 2020,
- Extent is  579 k MORE than  2019,
- Extent is  185 k MORE than 2016
- Extent is  1,238 k MORE than 2012
- Extent is  153 k MORE than the 2010's Average
_____________________________________________
On average 100.0% of extent losses from maximum to minimum done, and on average 4 days after the minimum

Projections. (Table JAXA-Arc1)

Looks to me likely that the minimum was on 16th September @  4,523,941 km2, and was 11th lowest in the satellite record.
_______________________________________________________________
N.B. Click on images to enlarge
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weatherdude88

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Re: 2022 Sea ice area and extent data
« Reply #775 on: September 19, 2022, 04:26:04 PM »
Daily NSIDC sea ice area recorded an increase of 65,000 square kilometers. Now 280,000 square kilometers above the 2022 minimum value.

5-day trailing average sea ice area saw an increase of 52,305.66 square kilometers.

<Removed distracting bold type. O>
« Last Edit: September 19, 2022, 05:39:25 PM by oren »

oren

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Re: 2022 Sea ice area and extent data
« Reply #776 on: September 19, 2022, 05:37:27 PM »
WD, we have regular daily postings of area and extent data which are provided on all days of the year, not just the up days. Single day values may be of some interest around turning points, but that point has passed now. Please avoid further daily posts of this sort, unless something really exceptional comes up.
In other words - we do get it, area has bottomed and started growing as it typically does this time of year.

gerontocrat

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Re: 2022 Sea ice area and extent data
« Reply #777 on: September 19, 2022, 08:40:57 PM »
NSIDC DAILY ARCTIC SEA ICE EXTENT:  4,684,000 KM2 as at 18-Sep-2022

- Extent loss on this day 12k, 33 k less than the average gain on this day (of the last 10 years) of 21k,

- Extent is at position #10 in the satellite record

- Extent is  125 k LESS than 2021,
- Extent is  780 k MORE than  2020,
- Extent is  243 k MORE than 2016
- Extent is  1,232 k MORE than 2012
- Extent is  137 k MORE than the 2010's Average
_____________________________________________
On average 3 days after the minimum

Projections. (Table NSIDC-Extent-1)

It may well be that NSIDC (One-day) sea ice extent was at the minimum on 16th September at 4.650 million km2
________________
N.B. Click on image to enlarge
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Tom Stedman

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Re: 2022 Sea ice area and extent data
« Reply #778 on: September 20, 2022, 09:00:47 AM »
JAXA sea ice extent 4,598k on the 19th of September, an increase of 41k. Storm Merbok or not, it's getting hard to see a new low.

gerontocrat

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Re: 2022 Sea ice area and extent data
« Reply #779 on: September 20, 2022, 09:04:47 AM »
I am now proceeding on the assumption that the minimum has indeed passed us by.
Will I come to regret this?

JAXA ARCTIC SEA ICE EXTENT:  4,598,071 KM2 as at 19-Sep-2022

- Extent gain on this day 41k, 18 k more than the average gain on this day (of the last 10 years) of 23k,
- Extent gain from minimum on this date is 74 k, which is 82 k, 52.6% less than the 10 year average of 156 k.

- Extent is 11th lowest in the 44 year satellite record

- Extent is  215 k LESS than 2021,
- Extent is  874 k MORE than 2020,
- Extent is  98 k MORE than  2018,
- Extent is  12 k MORE than 2017
- Extent is  1,228 k MORE than 2012
- Extent is  165 k MORE than the 2010's Average
_____________________________________________
On average 1.6% of extent gains  from minimum to maximum done, and 171 days to maximum

Projections. (Table JAXA-Arc1)

Average remaining extent gain (of the last 10 years) would produce a maximum in March 2022 of 14.42 million km2, 0.54 million km2 above the March 2017 record low maximum of 13.88 million km2, which would be 11th lowest in the satellite record
_______________________________________________________________
N.B. Click on image to enlarge
"Para a Causa do Povo a Luta Continua!"
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gerontocrat

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Re: 2022 Sea ice area and extent data
« Reply #780 on: September 20, 2022, 09:01:35 PM »
I am proceeding on the assumption that the 2022 NSIDC sea ice area minimum was on the 13th September @ 3,217,388 km2

NSIDC ARCTIC SEA ICE AREA (5-day trailing average):  3,412,525 KM2 as at 19-Sep-2022

- Area gain on this day 58k, 35 k more than the average gain on this day (of the last 10 years) of 23k,
- Area gain from minimum on this date is 195 k, which is 7 k, 3.7% more than the 10 year average of 188 k.

- Area is at position #11 in the satellite record

- Area is  102 k LESS than 2021,
- Area is  697 k MORE than 2020,
- Area is  27 k MORE than  2018,
- Area is  40 k MORE than 2017
- Area is  1,100 k MORE than 2012
- Area is  166 k MORE than the 2010's Average
_____________________________________________
On average 1.9% of Area gains  from minimum to maximum done, and 173 days to maximum

Projections. (Table JAXA-Arc1)

Average remaining Area gain (of the last 10 years) would produce a maximum in March 2021 of 13.26 million km2, 0.63 million km2 above the March 2016 record low maximum of 12.63 million km2, and 12th lowest in the 44 year satellite record.
_______________________________________________________________
N.B. Click on image to enlarge
"Para a Causa do Povo a Luta Continua!"
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Tom Stedman

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Re: 2022 Sea ice area and extent data
« Reply #781 on: September 21, 2022, 07:43:42 AM »
JAXA sea ice extent 4,653k, an increase of 55k.
Extent is rebounding surprisingly fast from minimum!

gerontocrat

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Re: 2022 Sea ice area and extent data
« Reply #782 on: September 21, 2022, 12:51:02 PM »
JAXA ARCTIC SEA ICE EXTENT:  4,653,065 KM2 as at 20-Sep-2022

- Extent gain on this day 55k, 23 k more than the average gain on this day (of the last 10 years) of 32k,
- Extent gain from minimum on this date is 129 k, which is 59 k, 31.3% less than the 10 year average of 188 k.

- Extent is 11th lowest in the 44 year satellite record

- Extent is  161 k LESS than 2021,
- Extent is  930 k MORE than 2020,
- Extent is  180 k MORE than  2018,
- Extent is  8 k MORE than 2017
- Extent is  1,226 k MORE than 2012
- Extent is  181 k MORE than the 2010's Average
_____________________________________________
On average 1.9% of extent gains  from minimum to maximum done, and 170 days to maximum

Projections. (Table JAXA-Arc1)

Average remaining extent gain (of the last 10 years) would produce a maximum in March 2022 of 14.44 million km2, 0.56 million km2 above the March 2017 record low maximum of 13.88 million km2, which would be 11th lowest in the satellite record
_______________________________________________________________
N.B. Click on image to enlarge
"Para a Causa do Povo a Luta Continua!"
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Juan C. García

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Re: 2022 Sea ice area and extent data
« Reply #783 on: September 22, 2022, 06:06:56 AM »
[ADS NIPR VISHOP (JAXA)] Arctic Sea Ice Extent.

September 21st, 2022:
      4,709,986 km2, an increase of 56,921 km2.

For comments, see the first post in this thread.
Source: https://ads.nipr.ac.jp/vishop/#/extent.
Which is the best answer to Sep-2012 ASI lost (compared to 1979-2000)?
50% [NSIDC Extent] or
73% [PIOMAS Volume]

Volume is harder to measure than extent, but 3-dimensional space is real, 2D's hide ~50% thickness gone.
-> IPCC/NSIDC trends [based on extent] underestimate the real speed of ASI lost.

gerontocrat

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Re: 2022 Sea ice area and extent data
« Reply #784 on: September 22, 2022, 11:07:31 AM »
JAXA ARCTIC SEA ICE EXTENT:  4,709,986 KM2 as at 21-Sep-2022

- Extent gain on this day 57k, 29 k more than the average gain on this day (of the last 10 years) of 28k,
- Extent gain from minimum on this date is 186 k, which is 30 k, 14.0% less than the 10 year average of 216 k.

- Extent is 11th lowest in the 44 year satellite record

- Extent is  115 k LESS than 2021,
- Extent is  959 k MORE than 2020,
- Extent is  253 k MORE than  2018,
- Extent is  29 k MORE than 2017
- Extent is  1,269 k MORE than 2012
- Extent is  208 k MORE than the 2010's Average
_____________________________________________
On average 2.2% of extent gains  from minimum to maximum done, and 169 days to maximum

Projections. (Table JAXA-Arc1)

Average remaining extent gain (of the last 10 years) would produce a maximum in March 2022 of 14.47 million km2, 0.59 million km2 above the March 2017 record low maximum of 13.88 million km2, which would be 13th lowest in the satellite record
_______________________________________________________________
N.B. Click on image to enlarge
"Para a Causa do Povo a Luta Continua!"
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gerontocrat

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Re: 2022 Sea ice area and extent data
« Reply #785 on: September 22, 2022, 03:21:43 PM »
NSIDC ARCTIC SEA ICE AREA (5-day trailing average):  3,510,888 KM2 as at 21-Sep-2022

- Area gain on this day 36k, 7 k more than the average gain on this day (of the last 10 years) of 29k,
- Area gain from minimum on this date is 294 k, which is 49 k, 20.1% more than the 10 year average of 244 k.

- Area is at position #12 in the satellite record

- Area is  1 k MORE than 2021,
- Area is  687 k MORE than 2020,
- Area is  111 k MORE than  2018,
- Area is  124 k MORE than 2017
- Area is  1,104 k MORE than 2012
- Area is  216 k MORE than the 2010's Average
_____________________________________________
On average 2.4% of Area gains  from minimum to maximum done, and 171 days to maximum

Projections. (Table JAXA-Arc1)

Average remaining Area gain (of the last 10 years) would produce a maximum in March 2023 of 13.30 million km2, 0.67 million km2 above the March 2016 record low maximum of 12.63 million km2, and 12th lowest in the 44 year satellite record.
_______________________________________________________________
N.B. Click on image to enlarge
"Para a Causa do Povo a Luta Continua!"
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Tom Stedman

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Re: 2022 Sea ice area and extent data
« Reply #786 on: September 23, 2022, 07:30:34 AM »
JAXA sea ice extent 4,713k on 22 of September. A small increase of about 3k.

Juan C. García

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Re: 2022 Sea ice area and extent data
« Reply #787 on: September 23, 2022, 07:36:00 AM »
JAXA sea ice extent 4,713k on 22 of September. A small increase of about 3k.
Thank you for posting, Tom Stedman.
Please, everyone, feel free to post if I am late.
And I apologize for not posting on 11 or 12 days. I will do my best to post all days, without interruption.

[ADS NIPR VISHOP (JAXA)] Arctic Sea Ice Extent.

September 22nd, 2022:
      4,713,138 km2, an increase of 3,152 km2.

For comments, see the first post in this thread.
Source: https://ads.nipr.ac.jp/vishop/#/extent.
« Last Edit: September 23, 2022, 08:12:53 AM by Juan C. García »
Which is the best answer to Sep-2012 ASI lost (compared to 1979-2000)?
50% [NSIDC Extent] or
73% [PIOMAS Volume]

Volume is harder to measure than extent, but 3-dimensional space is real, 2D's hide ~50% thickness gone.
-> IPCC/NSIDC trends [based on extent] underestimate the real speed of ASI lost.

gerontocrat

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Re: 2022 Sea ice area and extent data
« Reply #788 on: September 23, 2022, 08:00:33 AM »
JAXA ARCTIC SEA ICE EXTENT:  4,713,138 KM2 as at 22-Sep-2022

- Extent gain on this day 3k, 29 k less than the average gain on this day (of the last 10 years) of 32k,
- Extent gain from minimum on this date is 189 k, which is 59 k, 23.7% less than the 10 year average of 248 k.

- Extent is 11th lowest in the 44 year satellite record

- Extent is  141 k LESS than 2021,
- Extent is  899 k MORE than 2020,
- Extent is  228 k MORE than  2018,
- Extent is  12 k MORE than 2017
- Extent is  1,276 k MORE than 2012
- Extent is  180 k MORE than the 2010's Average
_____________________________________________
On average 2.5% of extent gains  from minimum to maximum done, and 168 days to maximum

Projections. (Table JAXA-Arc1)

Average remaining extent gain (of the last 10 years) would produce a maximum in March 2023 of 14.44 million km2, 0.57 million km2 above the March 2017 record low maximum of 13.88 million km2, which would be 11th lowest in the satellite record
_______________________________________________________________
N.B. Click on image to enlarge
"Para a Causa do Povo a Luta Continua!"
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"Damn, I wanted to see what happened next" (Epitaph)

gerontocrat

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Re: 2022 Sea ice area and extent data
« Reply #789 on: September 23, 2022, 04:53:23 PM »
NSIDC ARCTIC SEA ICE AREA (5-day trailing average):  3,606,983 KM2 as at 22-Sep-2022

- Area gain on this day 64k, 40 k more than the average gain on this day (of the last 10 years) of 24k,
- Area gain from minimum on this date is 390 k, which is 121 k, 45.2% more than the 10 year average of 268 k.

- Area is at position #13 in the satellite record

- Area is  104 k MORE than 2021,
- Area is  724 k MORE than 2020,
- Area is  202 k MORE than  2018,
- Area is  240 k MORE than 2017
- Area is  1,158 k MORE than 2012
- Area is  288 k MORE than the 2010's Average
_____________________________________________
On average 2.7% of Area gains  from minimum to maximum done, and 170 days to maximum

Projections. (Table JAXA-Arc1)

Average remaining Area gain (of the last 10 years) would produce a maximum in March 2023 of 13.37 million km2, 0.74 million km2 above the March 2016 record low maximum of 12.63 million km2, and 12th lowest in the 44 year satellite record.
_______________________________________________________________
N.B. Click on image to enlarge
"Para a Causa do Povo a Luta Continua!"
"And that's all I'm going to say about that". Forrest Gump
"Damn, I wanted to see what happened next" (Epitaph)

Juan C. García

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Re: 2022 Sea ice area and extent data
« Reply #790 on: September 24, 2022, 05:46:37 AM »
[ADS NIPR VISHOP (JAXA)] Arctic Sea Ice Extent.

September 23rd, 2022:
      4,729,522 km2, an increase of 16,384 km2.

For comments, see the first post in this thread.
Source: https://ads.nipr.ac.jp/vishop/#/extent.
Which is the best answer to Sep-2012 ASI lost (compared to 1979-2000)?
50% [NSIDC Extent] or
73% [PIOMAS Volume]

Volume is harder to measure than extent, but 3-dimensional space is real, 2D's hide ~50% thickness gone.
-> IPCC/NSIDC trends [based on extent] underestimate the real speed of ASI lost.

gerontocrat

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Re: 2022 Sea ice area and extent data
« Reply #791 on: September 24, 2022, 08:59:09 AM »
JAXA ARCTIC SEA ICE EXTENT:  4,729,522 KM2 as at 23-Sep-2022

- Extent gain on this day 16k, 27 k less than the average gain on this day (of the last 10 years) of 43k,
- Extent gain from minimum on this date is 206 k, which is 85 k, 29.3% less than the 10 year average of 291 k.

- Extent is 11th lowest in the 44 year satellite record

- Extent is  153 k LESS than 2021,
- Extent is  861 k MORE than 2020,
- Extent is  194 k MORE than  2018,
- Extent is  28 k MORE than 2017
- Extent is  1,255 k MORE than 2012
- Extent is  154 k MORE than the 2010's Average
_____________________________________________
On average 2.9% of extent gains  from minimum to maximum done, and 167 days to maximum

Projections. (Table JAXA-Arc1)

Average remaining extent gain (of the last 10 years) would produce a maximum in March 2023 of 14.42 million km2, 0.54 million km2 above the March 2017 record low maximum of 13.88 million km2, which would be 11th lowest in the satellite record
_______________________________________________________________
N.B. Click on image to enlarge
"Para a Causa do Povo a Luta Continua!"
"And that's all I'm going to say about that". Forrest Gump
"Damn, I wanted to see what happened next" (Epitaph)

gerontocrat

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Re: 2022 Sea ice area and extent data
« Reply #792 on: September 24, 2022, 05:26:29 PM »
NSIDC ARCTIC SEA ICE AREA (5-day trailing average):  3,657,740 KM2 as at 23-Sep-2022

- Area gain on this day 51k, 23 k more than the average gain on this day (of the last 10 years) of 28k,
- Area gain from minimum on this date is 440 k, which is 144 k, 48.8% more than the 10 year average of 296 k.

- Area is at position #13 in the satellite record

- Area is  165 k MORE than 2021,
- Area is  719 k MORE than 2020,
- Area is  249 k MORE than  2018,
- Area is  311 k MORE than 2017
- Area is  1,167 k MORE than 2012
- Area is  309 k MORE than the 2010's Average
_____________________________________________
On average 2.9% of Area gains  from minimum to maximum done, and 169 days to maximum

Projections. (Table JAXA-Arc1)

Average remaining Area gain (of the last 10 years) would produce a maximum in March 2023 of 13.39 million km2, 0.76 million km2 above the March 2016 record low maximum of 12.63 million km2, and 12th lowest in the 44 year satellite record.
_______________________________________________________________
N.B. Click on image to enlarge
"Para a Causa do Povo a Luta Continua!"
"And that's all I'm going to say about that". Forrest Gump
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Tom Stedman

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Re: 2022 Sea ice area and extent data
« Reply #793 on: September 25, 2022, 09:06:03 AM »
JAXA sea ice extent 4,794k, an increase of 64k on 24of September

Brigantine

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Re: 2022 Sea ice area and extent data
« Reply #794 on: September 25, 2022, 09:58:29 AM »
and 2022 got overtaken by 2016 (of all years!), so now in 10th place

gerontocrat

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Re: 2022 Sea ice area and extent data
« Reply #795 on: September 25, 2022, 12:12:40 PM »
JAXA ARCTIC SEA ICE EXTENT:  4,794,899 KM2 as at 24-Sep-2022

- Extent gain on this day 65k, 11 k more than the average gain on this day (of the last 10 years) of 54k,
- Extent gain from minimum on this date is 271 k, which is 74 k, 21.4% less than the 10 year average of 345 k.

- Extent is 10th lowest in the 44 year satellite record

- Extent is  114 k LESS than 2021,
- Extent is  862 k MORE than 2020,
- Extent is  193 k MORE than  2018,
- Extent is  91 k MORE than 2017
- Extent is  1,275 k MORE than 2012
- Extent is  166 k MORE than the 2010's Average
_____________________________________________
On average 3.5% of extent gains  from minimum to maximum done, and 166 days to maximum

Projections. (Table JAXA-Arc1)

Average remaining extent gain (of the last 10 years) would produce a maximum in March 2023 of 14.44 million km2, 0.56 million km2 above the March 2017 record low maximum of 13.88 million km2, which would be 11th lowest in the satellite record
_______________________________________________________________
N.B. Click on image to enlarge
"Para a Causa do Povo a Luta Continua!"
"And that's all I'm going to say about that". Forrest Gump
"Damn, I wanted to see what happened next" (Epitaph)

gerontocrat

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Re: 2022 Sea ice area and extent data
« Reply #796 on: September 25, 2022, 06:05:39 PM »
NSIDC ARCTIC SEA ICE AREA (5-day trailing average):  3,678,536 KM2 as at 24-Sep-2022

- Area gain on this day 21k, 13 k less than the average gain on this day (of the last 10 years) of 34k,
- Area gain from minimum on this date is 461 k, which is 131 k, 39.8% more than the 10 year average of 330 k.

- Area is at position #13 in the satellite record

- Area is  178 k MORE than 2021,
- Area is  700 k MORE than 2020,
- Area is  252 k MORE than  2018,
- Area is  336 k MORE than 2017
- Area is  1,151 k MORE than 2012
- Area is  290 k MORE than the 2010's Average
_____________________________________________
On average 3.3% of Area gains  from minimum to maximum done, and 168 days to maximum

Projections. (Table JAXA-Arc1)

Average remaining Area gain (of the last 10 years) would produce a maximum in March 2023 of 13.38 million km2, 0.75 million km2 above the March 2016 record low maximum of 12.63 million km2, and 12th lowest in the 44 year satellite record.
_______________________________________________________________
N.B. Click on image to enlarge
"Para a Causa do Povo a Luta Continua!"
"And that's all I'm going to say about that". Forrest Gump
"Damn, I wanted to see what happened next" (Epitaph)

Juan C. García

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Re: 2022 Sea ice area and extent data
« Reply #797 on: September 26, 2022, 05:51:53 AM »
JAXA sea ice extent 4,794k, an increase of 64k on 24of September
Thank you for posting, Tom Stedman.
And I am sorry that I didn't post yesterday.   :(

[ADS NIPR VISHOP (JAXA)] Arctic Sea Ice Extent.

September 25th, 2022:
      4,836,904 km2, an increase of 42,005 km2.

For comments, see the first post in this thread.
Source: https://ads.nipr.ac.jp/vishop/#/extent.
Which is the best answer to Sep-2012 ASI lost (compared to 1979-2000)?
50% [NSIDC Extent] or
73% [PIOMAS Volume]

Volume is harder to measure than extent, but 3-dimensional space is real, 2D's hide ~50% thickness gone.
-> IPCC/NSIDC trends [based on extent] underestimate the real speed of ASI lost.

gerontocrat

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Re: 2022 Sea ice area and extent data
« Reply #798 on: September 26, 2022, 10:24:28 AM »
JAXA ARCTIC SEA ICE EXTENT:  4,836,904 KM2 as at 25-Sep-2022

- Extent gain on this day 42k, 2 k less than the average gain on this day (of the last 10 years) of 44k,
- Extent gain from minimum on this date is 313 k, which is 76 k, 19.5% less than the 10 year average of 389 k.

- Extent is 10th lowest in the 44 year satellite record

- Extent is  85 k LESS than 2021,
- Extent is  795 k MORE than 2020,
- Extent is  177 k MORE than  2018,
- Extent is  82 k MORE than 2017
- Extent is  1,297 k MORE than 2012
- Extent is  161 k MORE than the 2010's Average
_____________________________________________
On average 3.9% of extent gains  from minimum to maximum done, and 165 days to maximum

Projections. (Table JAXA-Arc1)

Average remaining extent gain (of the last 10 years) would produce a maximum in March 2023 of 14.44 million km2, 0.56 million km2 above the March 2017 record low maximum of 13.88 million km2, which would be 11th lowest in the satellite record
_______________________________________________________________
N.B. Click on image to enlarge
"Para a Causa do Povo a Luta Continua!"
"And that's all I'm going to say about that". Forrest Gump
"Damn, I wanted to see what happened next" (Epitaph)

Juan C. García

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Re: 2022 Sea ice area and extent data
« Reply #799 on: September 27, 2022, 06:43:04 AM »
[ADS NIPR VISHOP (JAXA)] Arctic Sea Ice Extent.

September 26th, 2022:
      4,851,313 km2, an increase of 14,409 km2.

For comments, see the first post in this thread.
Source: https://ads.nipr.ac.jp/vishop/#/extent.
Which is the best answer to Sep-2012 ASI lost (compared to 1979-2000)?
50% [NSIDC Extent] or
73% [PIOMAS Volume]

Volume is harder to measure than extent, but 3-dimensional space is real, 2D's hide ~50% thickness gone.
-> IPCC/NSIDC trends [based on extent] underestimate the real speed of ASI lost.