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gerontocrat

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2025 Arctic Sea ice area & extent data
« on: January 02, 2025, 10:03:02 AM »
JAXA ARCTIC SEA ICE EXTENT:  11,911,370 KM2 as at 01-Jan-2025

- Extent gain on this day 53k which is 9 k more than the average gain on this day (of the last 10 years) of 44k,
- Extent gain from minimum on this date is 7,838 k, which is 188 k, 2.3% less than the 10 year average of 8,026 k.

- Extent is 1st lowest in the 47 year satellite record.

- Extent is  256 k LESS than 2023,
- Extent is  785 k LESS than 2022,
- Extent is  249 k LESS than 2021,
- Extent is  521 k LESS than 2020,
- Extent is  34 k LESS than  2018,
- Extent is  164 k LESS than 2017
- Extent is  835 k LESS than 2012
- Extent is  1,941 k LESS than the 1980’s Average
- Extent is  429 k LESS than the 2010's Average.

On average 81.5% of extent gains from minimum to maximum done, and 61 days to the average date of the maximum.

Projections. (Table JAXA-Arc1)

Average remaining extent gain (of the last 10 years) would produce a maximum in March 2025 of 13.73 million km2, 0.15 million km2 below the March 2017 record low maximum of 13.88 million km2, which would be 1st lowest in the 47 year satellite record.
_______________________________________________________________
N.B. Click on image to enlarge
"I wasn't expecting that quite so soon" kiwichick16
"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)

binntho

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Re: 2025 Arctic Sea ice area & extent data
« Reply #1 on: January 03, 2025, 06:56:38 AM »
Extent 02-Jan is 11,897,520 km2,
a drop in extent of 13,850 km2
which deviates by 64,641 km2 from the 10 year 5 day running average of 50,791 km2

Extent is lowest in satellite record, 126k below 2018 in #2 and 234k below 2021 in #3

While the poverty of my Excel graphing skills is evident, I think the second graph might be interesting in the coming days and weeks. Last year is a thick red line, while this year sneeks in as a thick washed-out-blue line. The difference between the two is 840k square kilometers, quite substantial!

« Last Edit: January 03, 2025, 08:13:35 AM by binntho »
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sadmird

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Re: 2025 Arctic Sea ice area & extent data
« Reply #2 on: January 03, 2025, 10:08:17 AM »
Thanks @gero and @binntho for consistently providing us with the new data. We have 5 out of 10 years in the 2020s, it could be useful to have 2020s in the statistics as well. I do understand it takes time to re-adjust all the data and people are posting the statistics on a voluntary basis during their free time, so it's just a suggestion.

binntho

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Re: 2025 Arctic Sea ice area & extent data
« Reply #3 on: January 04, 2025, 08:19:22 AM »
Extent 03-Jan is 11,869,778 km2,
A drop in extent of 27,742 km2
which is a deviation of 78,157 km2 from the 10 year 5 day running average increase of 50,415 km2

Extent is lowest in satellite record, 214k below 2018 in #2 and 309k below 2021 in #3.

because a thing is eloquently expressed it should not be taken to be as necessarily true
St. Augustine, Confessions V, 6

binntho

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Re: 2025 Arctic Sea ice area & extent data
« Reply #4 on: January 05, 2025, 06:34:42 AM »
Extent 04-Jan is 11,867,678 km2,
A drop in extent of 2,100 km2
which deviates by 51,986 km2 from the 10 year 5 day running average of 49,886 km2

Extent is lowest in satellite record, 272k below 2018 in #2 and 374k below 2021 in #3.

Extent is now more than one million km2 less than it was on the same date last year.
because a thing is eloquently expressed it should not be taken to be as necessarily true
St. Augustine, Confessions V, 6

binntho

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Re: 2025 Arctic Sea ice area & extent data
« Reply #5 on: January 06, 2025, 04:38:55 AM »
Extent still heading into the great unknown! Something similar happened in 2021, a drop and slow restart to extent - except this time extent is half a million km2 lower.

Extent 05-Jan is 11,868,125 km2,
an increase in extent of 447 km2
which is 45,752 km2 less than the 10 year 5 day running average of 46,199 km2

Extent is lowest in satellite record, 301k below 2018 in #2 and 460k below 2021 in #3

because a thing is eloquently expressed it should not be taken to be as necessarily true
St. Augustine, Confessions V, 6

kiwichick16

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Re: 2025 Arctic Sea ice area & extent data
« Reply #6 on: January 06, 2025, 06:14:22 PM »
still time to recover....... :)

kiwichick16

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binntho

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Re: 2025 Arctic Sea ice area & extent data
« Reply #8 on: January 07, 2025, 06:51:58 AM »
A whopping 121k increase. Recovery under way?

Extent 06-Jan is 11,989,519 km2,
An increase in extent of 121,394 km2
which is 78,761 km2 more than the 10 year 5 day running average of 42,633 km2

Extent is lowest in satellite record, 178k below 2018 in #2 and 399k below 2021 in #3
because a thing is eloquently expressed it should not be taken to be as necessarily true
St. Augustine, Confessions V, 6

gerontocrat

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Re: 2025 Arctic Sea ice area & extent data
« Reply #9 on: January 07, 2025, 07:02:19 AM »
JAXA ARCTIC SEA ICE EXTENT:  11,989,519 KM2 as at 06-Jan-2025

The very high sea ice gain on this day maybe linked to very cold weather in Eastern North America (i.e. in Hudson Bay, Baffin Bay and St Lawrence)?.

- Extent gain on this day 121k which is 74 k more than the average gain on this day (of the last 10 years) of 47k,
- Extent gain from minimum on this date is 7,917 k, which is 371 k, 4.5% less than the 10 year average of 8,288 k.

- Extent is 1st lowest in the 47 year satellite record. Extent has been lowest for 6 days so far this year.

- Extent is  1,074 k LESS than 2024,
- Extent is  473 k LESS than 2023,
- Extent is  953 k LESS than 2022,
- Extent is  399 k LESS than 2021,
- Extent is  632 k LESS than 2020,
- Extent is  178 k LESS than  2018,
- Extent is  400 k LESS than 2017
- Extent is  845 k LESS than 2012
- Extent is  2,112 k LESS than the 1980’s Average
- Extent is  572 k LESS than the 2010's Average.

On average 84.2% of extent gains from minimum to maximum done, and 56 days to the average date of the maximum.

Projections. (Table JAXA-Arc1)

Average remaining extent gain (of the last 10 years) would produce a maximum in March 2025 of 13.55 million km2, 0.33 million km2 below the March 2017 record low maximum of 13.88 million km2, which would be 1st lowest in the 47 year satellite record.
_______________________________________________________________
N.B. Click on image to enlarge
"I wasn't expecting that quite so soon" kiwichick16
"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: 2025 Arctic Sea ice area & extent data
« Reply #10 on: January 07, 2025, 07:43:28 PM »
NSIDC ARCTIC SEA ICE AREA (5-day trailing average):  10,836,559 KM2 as at 06-Jan-2025

- Area gain on this day 64k, which is 16 k more than the average gain on this day (of the last 10 years) of 48k,
- Area gain from minimum on this date is 8,325 k, which is 87k km2, 1.0% less than the 10 year average of 8,412 k.

- Area is at position #1 in the satellite record (#1=lowest),

- Area is  843 k LESS than 2024,
- Area is  539 k LESS than 2023,
- Area is  1,023 k LESS than 2022,
- Area is  847 k LESS than 2020,
- Area is  165 k LESS than 2017
- Area is  1,837 k LESS than the 1980’s Average
- Area is  657 k LESS than the 2010's Average
_____________________________________________
On average 84.2% of Area gains from minimum to maximum done, and 62 days to the average date of the maximum

Projections. (Table NSIDC-Arctic-Area-1)

Average remaining Area gain (of the last 10 years) would produce a maximum in March 2025 of 12.41 million km2, 0.31 million km2 below the March 2016 record low maximum of 12.72 million km2, and 1st lowest in the 47 year satellite record.
_______________________________________________________________
N.B. Click on image to enlarge
"I wasn't expecting that quite so soon" kiwichick16
"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)

binntho

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Re: 2025 Arctic Sea ice area & extent data
« Reply #11 on: January 08, 2025, 05:47:19 AM »
Another whopper!

Extent 07-Jan is 12,137,393 km2,
An increase in extent of 147,874 km2
which is 108,085 km2 more than the 10 year 5 day running average of 39,789 km2

Extent is still lowest in satellite record, 71k below 2018 in #2 and 199k below 2017 in #3
because a thing is eloquently expressed it should not be taken to be as necessarily true
St. Augustine, Confessions V, 6

binntho

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Re: 2025 Arctic Sea ice area & extent data
« Reply #12 on: January 09, 2025, 05:35:04 AM »
Extent 08-Jan is 12,231,744 km2,
an increase in extent of 94,351 km2
which is 56,265 km2 more than the 10 year 5 day running average of 38,086 km2

Extent is still lowest in satellite record, 6k below 2018 in #2 and 97k below 2017 in #3
because a thing is eloquently expressed it should not be taken to be as necessarily true
St. Augustine, Confessions V, 6

binntho

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Re: 2025 Arctic Sea ice area & extent data
« Reply #13 on: January 10, 2025, 06:17:33 AM »
Extent 09-Jan is 12,299,071 km2,
an increase in extent of 67,327 km2
which is 29,928 km2 more than the 10 year 5 day running average of 37,399 km2

Extent is second lowest in satellite record, 20k above 2018 in #1 and 27k below 2017 in #3

because a thing is eloquently expressed it should not be taken to be as necessarily true
St. Augustine, Confessions V, 6

binntho

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Re: 2025 Arctic Sea ice area & extent data
« Reply #14 on: January 11, 2025, 06:10:46 AM »
Extent 10-Jan is 12,360,065 km2,
an increase in extent of 60,994 km2
which is 23,342 km2 more than the 10 year 5 day running average of 37,652 km2

Extent is third lowest in satellite record, 48k above 2018 in #1 and 23k above 2017 in #2

because a thing is eloquently expressed it should not be taken to be as necessarily true
St. Augustine, Confessions V, 6

gerontocrat

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Re: 2025 Arctic Sea ice area & extent data
« Reply #15 on: January 12, 2025, 12:26:57 PM »
JAXA ARCTIC SEA ICE EXTENT:  12,399,919 KM2 as at 11-Jan-2025

- Extent gain on this day 40k which is 6 k more than the average gain on this day (of the last 10 years) of 34k,
- Extent gain from minimum on this date is 8,327 k, which is 136 k, 1.6% less than the 10 year average of 8,463 k.

- Extent is 3rd lowest in the 47 year satellite record..

- Extent is  843 k LESS than 2024,
- Extent is  286 k LESS than 2023,
- Extent is  706 k LESS than 2022,
- Extent is  274 k LESS than 2021,
- Extent is  311 k LESS than 2020,
- Extent is  68 k MORE than  2018,
- Extent is  3 k MORE than 2017
- Extent is  835 k LESS than 2012
- Extent is  1,895 k LESS than the 1980’s Average
- Extent is  373 k LESS than the 2010's Average.

On average 86.0% of extent gains from minimum to maximum done, and 51 days to the average date of the maximum.

Projections. (Table JAXA-Arc1)

Average remaining extent gain (of the last 10 years) would produce a maximum in March 2025 of 13.78 million km2, 0.10 million km2 below the March 2017 record low maximum of 13.88 million km2, which would be 1st lowest in the 47 year satellite record.
_______________________________________________________________
N.B. Click on image to enlarge
"I wasn't expecting that quite so soon" kiwichick16
"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: 2025 Arctic Sea ice area & extent data
« Reply #16 on: January 12, 2025, 02:28:25 PM »
NSIDC ARCTIC SEA ICE AREA (5-day trailing average):  11,354,372 KM2 as at 11-Jan-2025

- Area gain on this day 74k, which is 34 k more than the average gain on this day (of the last 10 years) of 40k,
- Area gain from minimum on this date is 8,842 k, which is 226k km2, 2.6% more than the 10 year average of 8,616 k.

- Area is at position #3 in the satellite record (#1=lowest),

- Area is  717 k LESS than 2024,
- Area is  386 k LESS than 2023,
- Area is  751 k LESS than 2022,
- Area is  501 k LESS than 2020,
- Area is  271 k MORE than 2017
- Area is  1,483 k LESS than the 1980’s Average
- Area is  304 k LESS than the 2010's Average
_____________________________________________
On average 86.3% of Area gains from minimum to maximum done, and 57 days to the average date of the maximum

Projections. (Table NSIDC-Arctic-Area-1)

Average remaining Area gain (of the last 10 years) would produce a maximum in March 2025 of 12.72 million km2, 0.00 million km2 above the March 2016 record low maximum of 12.72 million km2, and 2nd lowest in the 47 year satellite record.
_______________________________________________________________
N.B. Click on image to enlarge
"I wasn't expecting that quite so soon" kiwichick16
"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)

binntho

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Re: 2025 Arctic Sea ice area & extent data
« Reply #17 on: January 13, 2025, 05:00:54 AM »
Extent 12-Jan is 12,431,833 km2,
an increase in extent of 31,914 km2
which is 7,505 km2 less than the 10 year 5 day running average of 39,419 km2

Extent is third lowest in satellite record, 63k above 2018 in #1 and 53k above 2017 in #2
because a thing is eloquently expressed it should not be taken to be as necessarily true
St. Augustine, Confessions V, 6

binntho

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Re: 2025 Arctic Sea ice area & extent data
« Reply #18 on: January 14, 2025, 05:27:56 AM »
Extent 13-Jan is 12,464,419 km2,
an increase in extent of 32,586 km2
which is 11,091 km2 less than the 10 year 5 day running average of 43,677 km2

Extent is third lowest in satellite record, 107k above 2017 in #1 and 33k above 2018 in #3
because a thing is eloquently expressed it should not be taken to be as necessarily true
St. Augustine, Confessions V, 6

gerontocrat

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Re: 2025 Arctic Sea ice area & extent data
« Reply #19 on: January 14, 2025, 10:52:56 AM »
JAXA ARCTIC SEA ICE EXTENT:  12,464,419 KM2 as at 13-Jan-2025

- Extent gain on this day 33k which is 2 k more than the average gain on this day (of the last 10 years) of 31k,
- Extent gain from minimum on this date is 8,392 k, which is 141 k, 1.7% less than the 10 year average of 8,533 k.

- Extent is 3rd lowest in the 47 year satellite record..

- Extent is  825 k LESS than 2024,
- Extent is  257 k LESS than 2023,
- Extent is  640 k LESS than 2022,
- Extent is  415 k LESS than 2021,
- Extent is  371 k LESS than 2020,
- Extent is  33 k MORE than  2018,
- Extent is  107 k MORE than 2017
- Extent is  814 k LESS than 2012
- Extent is  1,919 k LESS than the 1980’s Average
- Extent is  384 k LESS than the 2010's Average.

On average 86.7% of extent gains from minimum to maximum done, and 49 days to the average date of the maximum.

Projections. (Table JAXA-Arc1)

Average remaining extent gain (of the last 10 years) would produce a maximum in March 2025 of 13.78 million km2, 0.10 million km2 below the March 2017 record low maximum of 13.88 million km2, which would be 1st lowest in the 47 year satellite record.
_______________________________________________________________
N.B. Click on image to enlarge
"I wasn't expecting that quite so soon" kiwichick16
"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)

binntho

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Re: 2025 Arctic Sea ice area & extent data
« Reply #20 on: January 15, 2025, 05:05:54 AM »
Extent 14-Jan is 12,507,726 km2,
an increase in extent of 43,307 km2
which is 3,784 km2 less than the 10 year 5 day running average of 47,091 km2

Extrapolating the 5 day running average predicts a maximum of 13.64 million km2 on March 13.

Extent is in third place in the satellite record, 120k above 2017 in #1 and 29k above 2018 in #2
because a thing is eloquently expressed it should not be taken to be as necessarily true
St. Augustine, Confessions V, 6

binntho

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Re: 2025 Arctic Sea ice area & extent data
« Reply #21 on: January 16, 2025, 05:25:41 AM »
Extent 15-Jan is 12,531,323 km2,
an increase in extent of 23,597 km2
which is 24,310 km2 less than the 10 year 5 day running average of 47,907 km2

Extrapolating the 5 day running average predicts a maximum of 13.61 million km2 on March 13,
0.26 less than 2017 minmax at 13.88.

Extent is second lowest in satellite record, 110k above 2017 in #1 and 98k below 2018 in #3
because a thing is eloquently expressed it should not be taken to be as necessarily true
St. Augustine, Confessions V, 6

gerontocrat

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Re: 2025 Arctic Sea ice area & extent data
« Reply #22 on: January 16, 2025, 05:33:54 AM »
JAXA ARCTIC SEA ICE EXTENT:  12,531,323 KM2 as at 15-Jan-2025

- Extent gain on this day 24k which is 40 k less than the average gain on this day (of the last 10 years) of 64k,
- Extent gain from minimum on this date is 8,458 k, which is 187 k, 2.2% less than the 10 year average of 8,646 k.

- Extent is 2rd lowest in the 47 year satellite record..

- Extent is  821 k LESS than 2024,
- Extent is  268 k LESS than 2023,
- Extent is  635 k LESS than 2022,
- Extent is  472 k LESS than 2021,
- Extent is  483 k LESS than 2020,
- Extent is  98 k LESS than  2018,
- Extent is  110 k MORE than 2017
- Extent is  677 k LESS than 2012
- Extent is  1,945 k LESS than the 1980’s Average
- Extent is  421 k LESS than the 2010's Average.

On average 87.8% of extent gains from minimum to maximum done, and 47 days to the average date of the maximum.

Projections. (Table JAXA-Arc1)

Average remaining extent gain (of the last 10 years) would produce a maximum in March 2025 of 13.73 million km2, 0.15 million km2 below the March 2017 record low maximum of 13.88 million km2, which would be 1st lowest in the 47 year satellite record.
_______________________________________________________________
N.B. Click on image to enlarge
"I wasn't expecting that quite so soon" kiwichick16
"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)

kiwichick16

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Re: 2025 Arctic Sea ice area & extent data
« Reply #23 on: January 16, 2025, 07:04:07 AM »
Like that purple Gero   8)

gerontocrat

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Re: 2025 Arctic Sea ice area & extent data
« Reply #24 on: January 16, 2025, 02:26:34 PM »
NSIDC ARCTIC SEA ICE AREA (5-day trailing average):  11,510,095 KM2 as at 15-Jan-2025

- Area gain on this day 43k, which is 12 k more than the average gain on this day (of the last 10 years) of 31k,
- Area gain from minimum on this date is 8,998 k, which is 239k km2, 2.7% more than the 10 year average of 8,760 k.

- Area is at position #2 in the satellite record (#1=lowest),

- Area is  618 k LESS than 2024,
- Area is  306 k LESS than 2023,
- Area is  717 k LESS than 2022,
- Area is  492 k LESS than 2020,
- Area is  360 k MORE than 2017
- Area is  1,414 k LESS than the 1980’s Average
- Area is  307 k LESS than the 2010's Average
_____________________________________________
On average 87.7% of Area gains from minimum to maximum done, and 53 days to the average date of the maximum

Projections. (Table NSIDC-Arctic-Area-1)

Average remaining Area gain (of the last 10 years) would produce a maximum in March 2025 of 12.74 million km2, 0.01 million km2 above the March 2016 record low maximum of 12.72 million km2, and 2nd lowest in the 47 year satellite record.
_______________________________________________________________
N.B. Click on image to enlarge
"I wasn't expecting that quite so soon" kiwichick16
"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)

binntho

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Re: 2025 Arctic Sea ice area & extent data
« Reply #25 on: January 17, 2025, 05:05:42 AM »
Extent 16-Jan is 12,573,701 km2,
an increase in extent of 42,378 km2
which is 4,869 km2 less than the 10 year 5 day running average of 47,247 km2

Extrapolating the 5 day running average predicts a maximum of 13.61 million km2 on March 13,
0.26 less than 2017 minmax at 13.88.

Extent is second lowest in satellite record, 77k above 2017 in #1 and 90k below 2018 in #3
because a thing is eloquently expressed it should not be taken to be as necessarily true
St. Augustine, Confessions V, 6

gerontocrat

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Re: 2025 Arctic Sea ice area & extent data
« Reply #26 on: January 17, 2025, 11:59:57 AM »
JAXA ARCTIC SEA ICE EXTENT:  12,573,701 KM2 as at 16-Jan-2025

- Extent gain on this day 42k which is 13 k less than the average gain on this day (of the last 10 years) of 55k,
- Extent gain from minimum on this date is 8,501 k, which is 200 k, 2.3% less than the 10 year average of 8,701 k.

- Extent is 2nd lowest in the 47 year satellite record..

- Extent is  793 k LESS than 2024,
- Extent is  306 k LESS than 2023,
- Extent is  642 k LESS than 2022,
- Extent is  512 k LESS than 2021,
- Extent is  490 k LESS than 2020,
- Extent is  90 k LESS than  2018,
- Extent is  77 k MORE than 2017
- Extent is  550 k LESS than 2012
- Extent is  1,944 k LESS than the 1980’s Average
- Extent is  421 k LESS than the 2010's Average.

On average 88.4% of extent gains from minimum to maximum done, and 46 days to the average date of the maximum.

Projections. (Table JAXA-Arc1)

Average remaining extent gain (of the last 10 years) would produce a maximum in March 2025 of 13.72 million km2, 0.16 million km2 below the March 2017 record low maximum of 13.88 million km2, which would be 1st lowest in the 47 year satellite record.
_______________________________________________________________
N.B. Click on image to enlarge
"I wasn't expecting that quite so soon" kiwichick16
"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: 2025 Arctic Sea ice area & extent data
« Reply #27 on: January 17, 2025, 02:07:51 PM »
NSIDC ARCTIC SEA ICE AREA (5-day trailing average):  11,563,964 KM2 as at 16-Jan-2025

- Area gain on this day 54k, which is 23 k more than the average gain on this day (of the last 10 years) of 31k,
- Area gain from minimum on this date is 9,052 k, which is 263k km2, 3.0% more than the 10 year average of 8,789 k.

- Area is at position #2 in the satellite record (#1=lowest),

- Area is  537 k LESS than 2024,
- Area is  283 k LESS than 2023,
- Area is  681 k LESS than 2022,
- Area is  481 k LESS than 2020,
- Area is  403 k MORE than 2017
- Area is  1,384 k LESS than the 1980’s Average
- Area is  286 k LESS than the 2010's Average
_____________________________________________
On average 88.0% of Area gains from minimum to maximum done, and 52 days to the average date of the maximum

Projections. (Table NSIDC-Arctic-Area-1)

Average remaining Area gain (of the last 10 years) would produce a maximum in March 2025 of 12.76 million km2, 0.04 million km2 above the March 2016 record low maximum of 12.72 million km2, and 3rd lowest in the 47 year satellite record.
_______________________________________________________________
N.B. Click on image to enlarge
"I wasn't expecting that quite so soon" kiwichick16
"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: 2025 Arctic Sea ice area & extent data
« Reply #28 on: January 17, 2025, 02:19:21 PM »
NSIDC ARCTIC SEA ICE AREA (5-day trailing average):  11,563,964 KM2 as at 16-Jan-2025

Hudson Bay
sea ice area increasing strongly but sea ice area about one month later than the 2010's average. This suggests (to me) the increased possibility of an early and/or rapid melt in a month or two.

St Lawrence sea ice area at an extreme low. Will we get another ridiculously minimal freeze up in the few weeks left for sea ice gain in the St Lawrence.
"I wasn't expecting that quite so soon" kiwichick16
"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)

binntho

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Re: 2025 Arctic Sea ice area & extent data
« Reply #29 on: January 18, 2025, 05:51:52 AM »
Extent 17-Jan is 12,594,812 km2,
an increase in extent of 21,111 km2
which is 23,224 km2 less than the 10 year 5 day running average of 44,335 km2

Extrapolating the 5 day running average predicts a maximum of 13.58 million km2 on March 13,
0.30 less than 2017 minmax at 13.88.

Extent is lowest in satellite record, 8k below 2017 in #2 and 80k below 2018 in #3
because a thing is eloquently expressed it should not be taken to be as necessarily true
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gerontocrat

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Re: 2025 Arctic Sea ice area & extent data
« Reply #30 on: January 18, 2025, 09:29:24 PM »
NSIDC ARCTIC SEA ICE AREA (5-day trailing average):  11,625,330 KM2 as at 17-Jan-2025

- Area gain on this day 61k, which is 24 k more than the average gain on this day (of the last 10 years) of 37k,
- Area gain from minimum on this date is 9,113 k, which is 287k km2, 3.3% more than the 10 year average of 8,826 k.

- Area is at position #3 in the satellite record (#1=lowest),

- Area is  464 k LESS than 2024,
- Area is  256 k LESS than 2023,
- Area is  630 k LESS than 2022,
- Area is  448 k LESS than 2020,
- Area is  431 k MORE than 2017
- Area is  1,347 k LESS than the 1980’s Average
- Area is  260 k LESS than the 2010's Average
_____________________________________________
On average 88.4% of Area gains from minimum to maximum done, and 51 days to the average date of the maximum

Projections. (Table NSIDC-Arctic-Area-1)

Average remaining Area gain (of the last 10 years) would produce a maximum in March 2025 of 12.78 million km2, 0.06 million km2 above the March 2016 record low maximum of 12.72 million km2, and 3rd lowest in the 47 year satellite record.
_______________________________________________________________
N.B. Click on image to enlarge
"I wasn't expecting that quite so soon" kiwichick16
"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: 2025 Arctic Sea ice area & extent data
« Reply #31 on: January 19, 2025, 01:58:21 PM »
NSIDC ARCTIC SEA ICE AREA (5-day trailing average):  11,699,077 KM2 as at 18-Jan-2025

- Area gain on this day 74k, which is 36 k more than the average gain on this day (of the last 10 years) of 38k,
- Area gain from minimum on this date is 9,187 k, which is 323k km2, 3.6% more than the 10 year average of 8,864 k.

- Area is at position #3 in the satellite record (#1=lowest),

- Area is  410 k LESS than 2024,
- Area is  206 k LESS than 2023,
- Area is  592 k LESS than 2022,
- Area is  403 k LESS than 2020,
- Area is  481 k MORE than 2017
- Area is  1,304 k LESS than the 1980’s Average
- Area is  217 k LESS than the 2010's Average
_____________________________________________
On average 88.8% of Area gains from minimum to maximum done, and 50 days to the average date of the maximum

Projections. (Table NSIDC-Arctic-Area-1)

Average remaining Area gain (of the last 10 years) would produce a maximum in March 2025 of 12.82 million km2, 0.10 million km2 above the March 2016 record low maximum of 12.72 million km2, and 3rd lowest in the 47 year satellite record.
_______________________________________________________________
N.B. Click on image to enlarge
"I wasn't expecting that quite so soon" kiwichick16
"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)

binntho

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Re: 2025 Arctic Sea ice area & extent data
« Reply #32 on: January 20, 2025, 05:12:43 AM »
A bit late with yesterdays' update, was busy celebrating Timket in Lalibela.

Extent 18-Jan is 12,642,643 km2,
an increase in extent of 47,831 km2
which is 9,669 km2 more than the 10 year 5 day running average of 38,162 km2

Extent is lowest in satellite record, 4k below 2017 in #2 and 58k below 2018 in #3
because a thing is eloquently expressed it should not be taken to be as necessarily true
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binntho

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Re: 2025 Arctic Sea ice area & extent data
« Reply #33 on: January 20, 2025, 06:15:54 AM »
Extent 19-Jan is 12,682,073 km2,
an increase in extent of 39,430 km2
which is 3,182 km2 more than the 10 year 5 day running average of 36,248 km2

Extrapolating the 5 day running average predicts a maximum of 13.60 million km2 on March 13,
0.28 below the 2017 minmax at 13.88.

Extent is lowest in satellite record, 43k below 2018 in #2 and 87k below 2017 in #3
because a thing is eloquently expressed it should not be taken to be as necessarily true
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gerontocrat

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Re: 2025 Arctic Sea ice area & extent data
« Reply #34 on: January 20, 2025, 03:46:47 PM »
NSIDC ARCTIC SEA ICE AREA (5-day trailing average):  11,765,042 KM2 as at 19-Jan-2025

- Area gain on this day 66k, which is 30 k more than the average gain on this day (of the last 10 years) of 36k,
- Area gain from minimum on this date is 9,253 k, which is 353k km2, 4.0% more than the 10 year average of 8,900 k.

- Area is at position #4 in the satellite record (#1=lowest),

- Area is  366 k LESS than 2024,
- Area is  174 k LESS than 2023,
- Area is  550 k LESS than 2022,
- Area is  371 k LESS than 2020,
- Area is  514 k MORE than 2017
- Area is  1,264 k LESS than the 1980’s Average
- Area is  179 k LESS than the 2010's Average
_____________________________________________
On average 89.1% of Area gains from minimum to maximum done, and 49 days to the average date of the maximum

Projections. (Table NSIDC-Arctic-Area-1)

Average remaining Area gain (of the last 10 years) would produce a maximum in March 2025 of 12.85 million km2, 0.13 million km2 above the March 2016 record low maximum of 12.72 million km2, and 3rd lowest in the 47 year satellite record.
_______________________________________________________________
N.B. Click on image to enlarge
"I wasn't expecting that quite so soon" kiwichick16
"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)

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Re: 2025 Arctic Sea ice area & extent data
« Reply #35 on: January 21, 2025, 06:10:42 AM »
Extent 20-Jan is 12,693,877 km2,
an increase in extent of 11,804km2
which is 25,625 km2 less than the 10 year 5 day running average of 37,429 km2

Extent is lowest in the satellite record, 7k below 2018 in #2 and 85k below 2006 in #3 (not shown in graph below)


because a thing is eloquently expressed it should not be taken to be as necessarily true
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kiwichick16

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Re: 2025 Arctic Sea ice area & extent data
« Reply #36 on: January 22, 2025, 02:56:31 AM »
thanks for the graphs  Binntho

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Re: 2025 Arctic Sea ice area & extent data
« Reply #37 on: January 22, 2025, 05:24:03 AM »
Extent 21-Jan is 12,786,155 km2,
an increase in extent of 92,278 km2
which is 50,717 km2 more than the 10 year 5 day running average of 41,561 km2

Extent is second lowest in satelite record, 105k above 2018 in #1 and 15k below 2006 in #3 (not shown in graph).


because a thing is eloquently expressed it should not be taken to be as necessarily true
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gerontocrat

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Re: 2025 Arctic Sea ice area & extent data
« Reply #38 on: January 22, 2025, 01:56:49 PM »
NSIDC ARCTIC SEA ICE AREA (5-day trailing average):  11,847,827 KM2 as at 21-Jan-2025

- Area gain on this day 40k, which is 4 k less than the average gain on this day (of the last 10 years) of 44k,
- Area gain from minimum on this date is 9,336 k, which is 353k km2, 3.9% more than the 10 year average of 8,983 k.

- Area is at position #6 in the satellite record (#1=lowest),

- Area is  386 k LESS than 2024,
- Area is  148 k LESS than 2023,
- Area is  519 k LESS than 2022,
- Area is  387 k LESS than 2020,
- Area is  487 k MORE than 2017
- Area is  1,236 k LESS than the 1980’s Average
- Area is  157 k LESS than the 2010's Average
_____________________________________________
On average 90.0% of Area gains from minimum to maximum done, and 47 days to the average date of the maximum

Projections. (Table NSIDC-Arctic-Area-1)

Average remaining Area gain (of the last 10 years) would produce a maximum in March 2025 of 12.85 million km2, 0.13 million km2 above the March 2016 record low maximum of 12.72 million km2, and 3rd lowest in the 47 year satellite record.
_______________________________________________________________
N.B. Click on image to enlarge
"I wasn't expecting that quite so soon" kiwichick16
"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)

binntho

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Re: 2025 Arctic Sea ice area & extent data
« Reply #39 on: January 23, 2025, 09:04:52 AM »
Extent 22-Jan is 12,869,959 km2,
an increase in extent of 83,804 km2
which is 43,125 km2 more than the 10 year 5 day running average of 40,679 km2

Extent is second lowest in satellite record, 184k above 2018 in #1 and 31k below 2006 in #3 (not shown in graph)
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Re: 2025 Arctic Sea ice area & extent data
« Reply #40 on: January 23, 2025, 02:43:03 PM »
NSIDC ARCTIC SEA ICE AREA (5-day trailing average):  11,876,391 KM2 as at 22-Jan-2025

- Area gain on this day 29k, which is 15 k less than the average gain on this day (of the last 10 years) of 44k,
- Area gain from minimum on this date is 9,365 k, which is 338k km2, 3.7% more than the 10 year average of 9,027 k.

- Area is at position #5 in the satellite record (#1=lowest),

- Area is  428 k LESS than 2024,
- Area is  120 k LESS than 2023,
- Area is  531 k LESS than 2022,
- Area is  425 k LESS than 2020,
- Area is  425 k MORE than 2017
- Area is  1,252 k LESS than the 1980’s Average
- Area is  160 k LESS than the 2010's Average
_____________________________________________
On average 90.4% of Area gains from minimum to maximum done, and 46 days to the average date of the maximum

Projections. (Table NSIDC-Arctic-Area-1)

Average remaining Area gain (of the last 10 years) would produce a maximum in March 2025 of 12.83 million km2, 0.11 million km2 above the March 2016 record low maximum of 12.72 million km2, and 3rd lowest in the 47 year satellite record.
_______________________________________________________________
N.B. Click on image to enlarge
"I wasn't expecting that quite so soon" kiwichick16
"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: 2025 Arctic Sea ice area & extent data
« Reply #41 on: January 24, 2025, 02:55:51 PM »
NSIDC ARCTIC SEA ICE AREA (5-day trailing average):  11,902,210 KM2 as at 23-Jan-2025

- Area gain on this day 26k, which is 18 k less than the average gain on this day (of the last 10 years) of 44k,
- Area gain from minimum on this date is 9,390 k, which is 319k km2, 3.5% more than the 10 year average of 9,071 k.

- Area is at position #5 in the satellite record (#1=lowest),

- Area is  467 k LESS than 2024,
- Area is  98 k LESS than 2023,
- Area is  516 k LESS than 2022,
- Area is  465 k LESS than 2020,
- Area is  336 k MORE than 2017
- Area is  1,264 k LESS than the 1980’s Average
- Area is  165 k LESS than the 2010's Average
_____________________________________________
On average 90.8% of Area gains from minimum to maximum done, and 45 days to the average date of the maximum

Projections. (Table NSIDC-Arctic-Area-1)

Average remaining Area gain (of the last 10 years) would produce a maximum in March 2025 of 12.82 million km2, 0.09 million km2 above the March 2016 record low maximum of 12.72 million km2, and 3rd lowest in the 47 year satellite record.
_______________________________________________________________
N.B. Click on image to enlarge
"I wasn't expecting that quite so soon" kiwichick16
"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)