Author Topic: 2023 Sea ice area and extent data (Read 343824 times)

Juan C. García · « **Reply #1100 on:** October 04, 2023, 06:15:57 AM »

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

October 3^rd, 2023:
4,718,751 km², an increase of 65,760 km².

For comments, see the first post in this thread.
Source: https://ads.nipr.ac.jp/vishop/#/extent

gerontocrat · « **Reply #1101 on:** October 04, 2023, 09:22:29 AM »

JAXA ARCTIC SEA ICE EXTENT: 4,718,751 KM2 as at 03-Oct-2023

- Extent gain on this day 66k which is 28 k more than the average gain on this day (of the last 10 years) of 38k,
- Extent gain from minimum on this date is 583 k, which is 106 k, 15.3% less than the 10 year average of 688 k.

- Extent is 5th lowest in the 44 year satellite record.

- Extent is 526 k LESS than 2021,
- Extent is 513 k MORE than 2020,
- Extent is 45 k LESS than 2018,
- Extent is 469 k LESS than 2017
- Extent is 824 k MORE than 2012
- Extent is 3,303 k LESS than the 1980’s Average
- Extent is 322 k LESS than the 2010's Average.

On average 7.0% of extent gains from minimum to maximum done, and 155 days to maximum.

Projections. (Table JAXA-Arc1)

Average remaining extent gain (of the last 10 years) would produce a maximum in March 2024 of 13.83 million km2, 0.04 million km2 below the March 2017 record low maximum of 13.88 million km2, which would be 1st lowest in the satellite record.
_______________________________________________________________
N.B. Click on image to enlarge

gerontocrat · « **Reply #1102 on:** October 04, 2023, 02:41:31 PM »

NSIDC ARCTIC SEA ICE AREA (5-day trailing average): 3,299,885 KM2 as at 03-Oct-2023

- Area gain on this day 66k, which is 26 k more than the average gain on this day (of the last 10 years) of 40k,
- Area gain from minimum on this date is 631 k, which is 105 k, 14.3% less than the 10 year average of 737 k.

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

- Area is 731 k LESS than 2022,
- Area is 636 k LESS than 2021,
- Area is 95 k MORE than 2020,
- Area is 684 k LESS than 2017
- Area is 3,017 k LESS than the 1980’s Average
- Area is 546 k LESS than the 2010's Average
_____________________________________________
On average 7.5% of Area gains from minimum to maximum done, and 158 days to maximum

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

Average remaining Area gain (of the last 10 years) would produce a maximum in March 2024 of 12.44 million km2, 0.19 million km2 below the March 2016 record low maximum of 12.63 million km2, and 1st lowest in the 44 year satellite record.
_______________________________________________________________
N.B. Click on image to enlarge

gerontocrat · « **Reply #1103 on:** October 04, 2023, 02:50:21 PM »

NSIDC ARCTIC SEA ICE AREA (5-day trailing average): A bit more

Attached are the graphs and tables for the High Arctic & the Peripheral Seas

In the Peripheral Seas the story once again is about the Greenalnd Sea, with very large sea ice area increases. How much is from freezing & how much from Fram sea ice export?

In the High Arctic, the Beaufort is currently 1st lowest in the 45 year satellite record and the CAA 3rd lowest.

gerontocrat · « **Reply #1104 on:** October 04, 2023, 02:52:25 PM »

NSIDC ARCTIC SEA ICE AREA (5-day trailing average):

Some graphs - mostly about the previous post.

gerontocrat · « **Reply #1105 on:** October 05, 2023, 10:44:18 PM »

No JAXA (ADS) data to day but we have NSIDC,

NSIDC ARCTIC SEA ICE AREA (5-day trailing average): 3,359,853 KM2 as at 04-Oct-2023

- Area gain on this day 60k, which is 22 k more than the average gain on this day (of the last 10 years) of 38k,
- Area gain from minimum on this date is 691 k, which is 83 k, 10.8% less than the 10 year average of 775 k.

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

- Area is 726 k LESS than 2022,
- Area is 653 k LESS than 2021,
- Area is 116 k MORE than 2020,
- Area is 625 k LESS than 2017
- Area is 3,046 k LESS than the 1980’s Average
- Area is 530 k LESS than the 2010's Average
_____________________________________________
On average 7.8% of Area gains from minimum to maximum done, and 157 days to maximum

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

Average remaining Area gain (of the last 10 years) would produce a maximum in March 2024 of 12.46 million km2, 0.17 million km2 below the March 2016 record low maximum of 12.63 million km2, and 1st lowest in the 44 year satellite record.
_______________________________________________________________
N.B. Click on image to enlarge

be cause · « **Reply #1106 on:** October 05, 2023, 11:00:27 PM »

As nico sun's measure of NSIDC area is over 100k higher but moved into 1st lowest today :

https://forum.arctic-sea-ice.net/index.php?action=dlattach;topic=4066.0;attach=389323;image ,

I am more confused than ever ! ( nico also seems to be 8 days into October ?

)

Juan C. García · « **Reply #1107 on:** October 06, 2023, 05:43:44 AM »

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

October 5^th, 2023:

I'm not able to connect to ADS/NIPR/VISHOP.
It send me to twitter (Now X).
I will wait another day...

Source: https://ads.nipr.ac.jp/vishop/#/extent

oren · « **Reply #1108 on:** October 06, 2023, 09:44:24 AM »

Quote from: be cause on October 05, 2023, 11:00:27 PM

As nico sun's measure of NSIDC area is over 100k higher but moved into 1st lowest today :

https://forum.arctic-sea-ice.net/index.php?action=dlattach;topic=4066.0;attach=389323;image ,

I am more confused than ever ! ( nico also seems to be 8 days into October ? )

Weirdly, all single-day NSIDC area values in Nico's chart for 2023 are below 2020, yet the 5-day NSIDC area average moved above 2020. I can't figure it out.

Edit: Steven has figured it out here https://forum.arctic-sea-ice.net/index.php/topic,4066.msg384332.html#msg384332 (a bug in Nico's site).

gerontocrat · « **Reply #1109 on:** October 06, 2023, 10:31:01 AM »

Problems with Nico Sun's https://cryospherecomputing.com/

It might be Windows 11 / google

I had problems with even accessing the images on Nico Sun's site (error messsages from google) after a big Windows 11 update recently - & some other odd wobbles with other programs I use. Then after another windows update things sort of got better.

Meanwhile, it looks like no JAXA (ADS) data for a 2nd day - site can't be accessed, not even a twitter message.

Chris83 · « **Reply #1110 on:** October 06, 2023, 12:49:10 PM »

There is a Twitter message warning about no data till the 13.10.2023

Renerpho · « **Reply #1111 on:** October 06, 2023, 01:59:52 PM »

Quote from: Chris83 on October 06, 2023, 12:49:10 PM

There is a Twitter message warning about no data till the 13.10.2023

I don't see it. Can you share a link, please?

Chris83 · « **Reply #1112 on:** October 06, 2023, 02:29:50 PM »

I followed the link provided by Juan .
it was on their twitter account ....(now , the link seems to go nowhere )
I didn't make a screenshot sadly. And I don't follow them on Twitter . but they stated 5.10 to 13.10

gerontocrat · « **Reply #1113 on:** October 06, 2023, 02:37:11 PM »

NSIDC ARCTIC SEA ICE AREA (5-day trailing average): 3,434,700 KM2 as at 05-Oct-2023

- Area gain on this day 75k, which is 36 k more than the average gain on this day (of the last 10 years) of 39k,
- Area gain from minimum on this date is 766 k, which is 48 k, 5.9% less than the 10 year average of 814 k.

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

- Area is 704 k LESS than 2022,
- Area is 667 k LESS than 2021,
- Area is 144 k MORE than 2020,
- Area is 548 k LESS than 2017
- Area is 3,065 k LESS than the 1980’s Average
- Area is 499 k LESS than the 2010's Average
_____________________________________________
On average 8.2% of Area gains from minimum to maximum done, and 156 days to maximum

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

Average remaining Area gain (of the last 10 years) would produce a maximum in March 2024 of 12.49 million km2, 0.14 million km2 below the March 2016 record low maximum of 12.63 million km2, and 1st lowest in the 44 year satellite record.
_______________________________________________________________
N.B. Click on image to enlarge

gerontocrat · « **Reply #1114 on:** October 06, 2023, 02:51:02 PM »

While the peripheral seas sea ice area continues to strongly increase well above average, the High Arctic sea ice area gain to date is still well below average.

NSIDC ARCTIC SEA ICE AREA (5-day trailing average): 3,074,313 KM2 as at 05-Oct-2023

- Area gain on this day 54k, which is 27 k more than the average gain on this day (of the last 10 years) of 27k,
- Area gain from minimum on this date is 568 k, which is 126 k, 18.1% less than the 10 year average of 693 k.

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

- Area is 790 k LESS than 2022,
- Area is 850 k LESS than 2021,
- Area is 69 k MORE than 2020,
- Area is 751 k LESS than 2017
- Area is 2,982 k LESS than the 1980’s Average
- Area is 524 k LESS than the 2010's Average
_____________________________________________
On average 12.1% of Area gains from minimum to maximum done, and 156 days to maximum

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

Average remaining Area gain (of the last 10 years) would produce a maximum in March 2024 of 8.07 million km2, 0.52 million km2 below the March 2016 record low maximum of 8.59 million km2, and 1st lowest in the 45 year satellite record.
_______________________________________________________________
N.B. Click on image to enlarge

Renerpho · « **Reply #1115 on:** October 06, 2023, 03:08:29 PM »

Quote from: Chris83 on October 06, 2023, 02:29:50 PM

I followed the link provided by Juan .
it was on their twitter account ....(now , the link seems to go nowhere )
I didn't make a screenshot sadly. And I don't follow them on Twitter . but they stated 5.10 to 13.10

No worries, I found it.

Quote from: https://twitter.com/ADS_NIPR/status/1709849835824947283

北極域データアーカイブシステム（ADS）は、システムメンテナンスのため、以下の日時で停止いたします。
2023年10月5日（木）9時　～　10月13日 17時
Due to server maintenance, Arctic Data Archive System (ADS) was unable to access website from Oct. 5th 9:00 to Oct..13 17:00 JST, 2023.

So there will be no JAXA data for the next week.

gerontocrat · « **Reply #1116 on:** October 07, 2023, 04:42:14 PM »

NSIDC ARCTIC SEA ICE AREA (5-day trailing average): 3,510,376 KM2 as at 06-Oct-2023

- Area gain on this day 76k, which is 40 k more than the average gain on this day (of the last 10 years) of 36k,
- Area gain from minimum on this date is 842 k, which is 8 k, 1.0% less than the 10 year average of 850 k.

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

- Area is 676 k LESS than 2022,
- Area is 672 k LESS than 2021,
- Area is 188 k MORE than 2020,
- Area is 486 k LESS than 2017
- Area is 3,078 k LESS than the 1980’s Average
- Area is 465 k LESS than the 2010's Average
_____________________________________________
On average 8.6% of Area gains from minimum to maximum done, and 155 days to maximum

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

Average remaining Area gain (of the last 10 years) would produce a maximum in March 2024 of 12.53 million km2, 0.10 million km2 below the March 2016 record low maximum of 12.63 million km2, and 1st lowest in the 44 year satellite record.
_______________________________________________________________
N.B. Click on image to enlarge

gerontocrat · « **Reply #1117 on:** October 07, 2023, 04:44:48 PM »

NSIDC ARCTIC SEA ICE AREA (5-day trailing average):

& here are the graphs & tables for the High Arctic & Peripheral seas.

gerontocrat · « **Reply #1118 on:** October 08, 2023, 10:15:05 PM »

No data from Japan and none from Colorado. Woe is me (and you?)

kassy · « **Reply #1119 on:** October 08, 2023, 11:38:37 PM »

Yes.

gerontocrat · « **Reply #1120 on:** October 09, 2023, 04:29:28 PM »

We have NSIDC data

NSIDC ARCTIC SEA ICE AREA (5-day trailing average): 3,684,633 KM2 as at 08-Oct-2023

- Area gain on this day 95k, which is 40 k more than the average gain on this day (of the last 10 years) of 55k,
- Area gain from minimum on this date is 1,016 k, which is 63 k, 6.6% more than the 10 year average of 953 k.

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

- Area is 525 k LESS than 2022,
- Area is 677 k LESS than 2021,
- Area is 276 k MORE than 2020,
- Area is 438 k LESS than 2017
- Area is 3,089 k LESS than the 1980’s Average
- Area is 406 k LESS than the 2010's Average
_____________________________________________
On average 9.7% of Area gains from minimum to maximum done, and 153 days to maximum

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

Average remaining Area gain (of the last 10 years) would produce a maximum in March 2024 of 12.60 million km2, 0.03 million km2 below the March 2016 record low maximum of 12.63 million km2, and 1st lowest in the 44 year satellite record.
_______________________________________________________________
N.B. Click on image to enlarge

gerontocrat · « **Reply #1121 on:** October 09, 2023, 04:31:43 PM »

NSIDC ARCTIC SEA ICE AREA (5-day trailing average): 3,684,633 KM2 as at 08-Oct-2023

High Arctic sea ice area now strongly increasing while Peripheral sea ice area gains stall

gerontocrat · « **Reply #1122 on:** October 10, 2023, 01:47:07 PM »

NSIDC ARCTIC SEA ICE AREA (5-day trailing average): 3,803,408 KM2 as at 09-Oct-2023

- Area gain on this day 119k, which is 54 k more than the average gain on this day (of the last 10 years) of 65k,
- Area gain from minimum on this date is 1,135 k, which is 117 k, 11.5% more than the 10 year average of 1,018 k.

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

- Area is 425 k LESS than 2022,
- Area is 635 k LESS than 2021,
- Area is 345 k MORE than 2020,
- Area is 436 k LESS than 2017
- Area is 3,059 k LESS than the 1980’s Average
- Area is 359 k LESS than the 2010's Average
_____________________________________________
On average 10.3% of Area gains from minimum to maximum done, and 152 days to maximum

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

Average remaining Area gain (of the last 10 years) would produce a maximum in March 2024 of 12.66 million km2, 0.03 million km2 above the March 2016 record low maximum of 12.63 million km2, and 2st lowest in the 44 year satellite record.
_______________________________________________________________
N.B. Click on image to enlarge

gerontocrat · « **Reply #1123 on:** October 10, 2023, 03:38:52 PM »

No JAXA data so here is NSIDC extent data

NSIDC ARCTIC SEA ICE EXTENT (5-day trailing average): 5,169,505 KM2 as at 09-Oct-2023

- EXTENT gain on this day 86k, which is 18 k more than the average gain on this day (of the last 10 years) of 68k,
- EXTENT gain from minimum on this date is 939 k, which is 74 k, 7.3% less than the 10 year average of 1,014 k.

- EXTENT in this century is at position #6 in the satellite record (#1=lowest), and 1 year(s) is lower before the year 2000

- EXTENT is 461 k LESS than 2022,
- EXTENT is 567 k LESS than 2021,
- EXTENT is 477 k MORE than 2020,
- EXTENT is 511 k LESS than 2017
- EXTENT is 3,233 k LESS than the 1980’s Average
- EXTENT is 378 k LESS than the 2010's Average
_____________________________________________
On average 10.1% of EXTENT gains from minimum to maximum done, and 152 days to maximum

Projections. (Table NSIDC-Arctic-EXTENT-1)
Average remaining EXTENT gain (of the last 10 years) would produce a maximum in March 2024 of 14.15 million km2, 0.09 million km2 below the March 2018 record low maximum of 14.24 million km2, and 1st lowest in the 44 year satellite record.
_______________________________________________________________
N.B. Click on image to enlarge

gerontocrat · « **Reply #1124 on:** October 11, 2023, 01:21:36 PM »

NSIDC ARCTIC SEA ICE AREA (5-day trailing average): 3,929,486 KM2 as at 10-Oct-2023

- Area gain on this day 126k, which is 54 k more than the average gain on this day (of the last 10 years) of 72k,
- Area gain from minimum on this date is 1,261 k, which is 171 k, 15.7% more than the 10 year average of 1,090 k.

- Area is at position #7 in the satellite record (#1=lowest),

- Area is 340 k LESS than 2022,
- Area is 588 k LESS than 2021,
- Area is 406 k MORE than 2020,
- Area is 437 k LESS than 2017
- Area is 3,003 k LESS than the 1980’s Average
- Area is 308 k LESS than the 2010's Average
_____________________________________________
On average 11.0% of Area gains from minimum to maximum done, and 151 days to maximum

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

Average remaining Area gain (of the last 10 years) would produce a maximum in March 2024 of 12.71 million km2, 0.08 million km2 above the March 2016 record low maximum of 12.63 million km2, and 3st lowest in the 44 year satellite record.
_______________________________________________________________
N.B. Click on image to enlarge

gerontocrat · « **Reply #1125 on:** October 11, 2023, 01:24:08 PM »

NSIDC ARCTIC SEA ICE AREA (5-day trailing average): 3,929,486 KM2 as at 10-Oct-2023

High Arctic sea ice area increasing by leaps and bounds, while Peripheral Seas sea ice area gains continue to stall.

Juan C. García · « **Reply #1126 on:** October 12, 2023, 05:53:04 AM »

ADS NIPR has data, but only until October 5th.
I will post tomorrow.

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

October 4^th, 2023:
4,758,105 km², an increase of 39,354 km².

October 5^th, 2023:
4,844,416 km², an increase of 86,311 km².

For comments, see the first post in this thread.
Source: https://ads.nipr.ac.jp/vishop/#/extent

gerontocrat · « **Reply #1127 on:** October 12, 2023, 06:17:31 PM »

NSIDC ARCTIC SEA ICE AREA (5-day trailing average): 4,051,979 KM2 as at 11-Oct-2023

- Area gain on this day 122k, which is 40 k more than the average gain on this day (of the last 10 years) of 82k,
- Area gain from minimum on this date is 1,383 k, which is 212 k, 18.1% more than the 10 year average of 1,171 k.

- Area is at position #7 in the satellite record (#1=lowest),

- Area is 279 k LESS than 2022,
- Area is 567 k LESS than 2021,
- Area is 448 k MORE than 2020,
- Area is 439 k LESS than 2017
- Area is 2,967 k LESS than the 1980’s Average
- Area is 266 k LESS than the 2010's Average
_____________________________________________
On average 11.9% of Area gains from minimum to maximum done, and 150 days to maximum

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

Average remaining Area gain (of the last 10 years) would produce a maximum in March 2024 of 12.75 million km2, 0.12 million km2 above the March 2016 record low maximum of 12.63 million km2, and 3st lowest in the 44 year satellite record.
_______________________________________________________________
N.B. Click on image to enlarge

gerontocrat · « **Reply #1128 on:** October 12, 2023, 06:19:18 PM »

NSIDC ARCTIC SEA ICE AREA (5-day trailing average): 3,929,486 KM2 as at 10-Oct-2023

Once again, High Arctic sea ice area increasing by leaps and bounds, while Peripheral Seas sea ice area gains continue to stall.

gerontocrat · « **Reply #1129 on:** October 12, 2023, 06:23:56 PM »

In recent days, Arctic Sea Ice area has increased much faster than Arctic sea ice extent.
Result? Increased sea ice concentration.

Stephan · « **Reply #1130 on:** October 12, 2023, 09:53:46 PM »

I added the monthly extent value for August and September 2023 into my long-term plot where I calculate the extent anomalies from 1979 up to now.
The average (1979-2023) NSIDC September extent is now 5.93 M km². September 2023 had an average extent of 4.37 M km², which is 1.56 M km² below that long-term average.
This month's value was below the long-term linear trend line. The difference of the actual month from that trend line is -0.39 M km² (calculated from the linear trend line this September should have been at 4.76 M km²).

The slope of the long-term linear trend line became steeper by one digit (-0.0524 → -0.0525).

See attached graph. Click to enlarge it.

Juan C. García · « **Reply #1131 on:** October 13, 2023, 05:44:20 AM »

Quote from: Juan C. García on October 12, 2023, 05:53:04 AM

ADS NIPR has data, but only until October 5th.
...
Source: https://ads.nipr.ac.jp/vishop/#/extent

It still has data until October 5th.
I will post tomorrow.

gerontocrat · « **Reply #1132 on:** October 13, 2023, 06:15:18 PM »

NSIDC ARCTIC SEA ICE AREA (5-day trailing average): 4,174,891 KM2 as at 12-Oct-2023

- Area gain on this day 123k, which is 30 k more than the average gain on this day (of the last 10 years) of 93k,
- Area gain from minimum on this date is 1,506 k, which is 242 k, 19.1% more than the 10 year average of 1,264 k.

- Area is at position #7 in the satellite record (#1=lowest),

- Area is 257 k LESS than 2022,
- Area is 550 k LESS than 2021,
- Area is 497 k MORE than 2020,
- Area is 439 k LESS than 2017
- Area is 2,924 k LESS than the 1980’s Average
- Area is 231 k LESS than the 2010's Average
_____________________________________________
On average 12.8% of Area gains from minimum to maximum done, and 149 days to maximum

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

Average remaining Area gain (of the last 10 years) would produce a maximum in March 2024 of 12.78 million km2, 0.15 million km2 above the March 2016 record low maximum of 12.63 million km2, and 3rd lowest in the 44 year satellite record.
_______________________________________________________________
N.B. Click on image to enlarge

Juan C. García · « **Reply #1133 on:** October 14, 2023, 05:36:22 AM »

Quote from: Juan C. García on October 13, 2023, 05:44:20 AM

Quote from: Juan C. García on October 12, 2023, 05:53:04 AM
ADS NIPR has data, but only until October 5th.
...
Source: https://ads.nipr.ac.jp/vishop/#/extent
It still has data until October 5th.
I will post tomorrow.

No change!!!

I will try tomorrow.

gerontocrat · « **Reply #1134 on:** October 14, 2023, 03:35:58 PM »

NSIDC ARCTIC SEA ICE AREA (5-day trailing average): 4,280,015 KM2 as at 13-Oct-2023

- Area gain on this day 105k, which is 3 k more than the average gain on this day (of the last 10 years) of 102k,
- Area gain from minimum on this date is 1,611 k, which is 245 k, 18.0% more than the 10 year average of 1,366 k.

- Area is at position #7 in the satellite record (#1=lowest),

- Area is 275 k LESS than 2022,
- Area is 554 k LESS than 2021,
- Area is 517 k MORE than 2020,
- Area is 434 k LESS than 2017
- Area is 2,910 k LESS than the 1980’s Average
- Area is 218 k LESS than the 2010's Average
_____________________________________________
On average 13.8% of Area gains from minimum to maximum done, and 148 days to maximum

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

Average remaining Area gain (of the last 10 years) would produce a maximum in March 2024 of 12.79 million km2, 0.16 million km2 above the March 2016 record low maximum of 12.63 million km2, and 3rd lowest in the 44 year satellite record.
_______________________________________________________________
N.B. Click on image to enlarge

gerontocrat · « **Reply #1135 on:** October 15, 2023, 03:53:26 PM »

NSIDC ARCTIC SEA ICE AREA (5-day trailing average): 4,373,377 KM2 as at 14-Oct-2023

- Area gain on this day 93k, which is 11 k less than the average gain on this day (of the last 10 years) of 104k,
- Area gain from minimum on this date is 1,705 k, which is 235 k, 16.0% more than the 10 year average of 1,470 k.

- Area is at position #7 in the satellite record (#1=lowest),

- Area is 319 k LESS than 2022,
- Area is 571 k LESS than 2021,
- Area is 522 k MORE than 2020,
- Area is 422 k LESS than 2017
- Area is 2,919 k LESS than the 1980’s Average
- Area is 218 k LESS than the 2010's Average
_____________________________________________
On average 14.9% of Area gains from minimum to maximum done, and 147 days to maximum

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

Average remaining Area gain (of the last 10 years) would produce a maximum in March 2024 of 12.78 million km2, 0.15 million km2 above the March 2016 record low maximum of 12.63 million km2, and 3rd lowest in the 44 year satellite record.
_______________________________________________________________
N.B. Click on image to enlarge

gerontocrat · « **Reply #1136 on:** October 15, 2023, 03:58:19 PM »

NSIDC ARCTIC SEA ICE EXTENT (5-day trailing average): 5,602,608 KM2 as at 14-Oct-2023

- EXTENT gain on this day 69k, which is 24 k less than the average gain on this day (of the last 10 years) of 93k,
- EXTENT gain from minimum on this date is 1,372 k, which is 53 k, 3.7% less than the 10 year average of 1,425 k.

- EXTENT in this century is at position #7 in the satellite record (#1=lowest), and 1 year(s) is lower before the year 2000

- EXTENT is 464 k LESS than 2022,
- EXTENT is 602 k LESS than 2021,
- EXTENT is 572 k MORE than 2020,
- EXTENT is 640 k LESS than 2017
- EXTENT is 3,215 k LESS than the 1980’s Average
- EXTENT is 393 k LESS than the 2010's Average
_____________________________________________
On average 14.3% of EXTENT gains from minimum to maximum done, and 147 days to maximum

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

Average remaining EXTENT gain (of the last 10 years) would produce a maximum in March 2024 of 14.17 million km2, 0.07 million km2 below the March 2018 record low maximum of 14.24 million km2, and 1st lowest in the 44 year satellite record.
_______________________________________________________________
N.B. Click on image to enlarge

gerontocrat · « **Reply #1137 on:** October 15, 2023, 04:00:31 PM »

NSIDC ARCTIC SEA ICE AREA (5-day trailing average): 3,929,486 KM2 as at 10-Oct-2023

High Arctic sea ice area increasing quite strongly, while Peripheral Seas sea ice area gains continue to stall.

gerontocrat · « **Reply #1138 on:** October 16, 2023, 11:31:04 AM »

So JAXA (ADS/VISHOP) data is back...

JAXA ARCTIC SEA ICE EXTENT: 5,746,622 KM2 as at 15-Oct-2023

- Extent gain on this day 115k which is 12 k more than the average gain on this day (of the last 10 years) of 103k,
- Extent gain from minimum on this date is 1,611 k, which is 86 k, 5.1% less than the 10 year average of 1,697 k.

- Extent is 7th lowest in the 44 year satellite record.

- Extent is 519 k LESS than 2021,
- Extent is 808 k MORE than 2020,
- Extent is 29 k MORE than 2018,
- Extent is 608 k LESS than 2017
- Extent is 356 k MORE than 2012
- Extent is 3,160 k LESS than the 1980’s Average
- Extent is 376 k LESS than the 2010's Average.

On average 17.3% of extent gains from minimum to maximum done, and 143 days to maximum.

Projections. (Table JAXA-Arc1)

Average remaining extent gain (of the last 10 years) would produce a maximum in March 2024 of 13.85 million km2, 0.02 million km2 below the March 2017 record low maximum of 13.88 million km2, which would be 1st lowest in the satellite record.
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N.B. Click on image to enlarge

gerontocrat · « **Reply #1139 on:** October 16, 2023, 01:51:16 PM »

NSIDC ARCTIC SEA ICE AREA (5-day trailing average): 4,462,849 KM2 as at 15-Oct-2023

- Area gain on this day 89k, which is 14 k less than the average gain on this day (of the last 10 years) of 103k,
- Area gain from minimum on this date is 1,794 k, which is 221 k, 14.0% more than the 10 year average of 1,574 k.

- Area is at position #7 in the satellite record (#1=lowest),

- Area is 353 k LESS than 2022,
- Area is 588 k LESS than 2021,
- Area is 534 k MORE than 2020,
- Area is 411 k LESS than 2017
- Area is 2,940 k LESS than the 1980’s Average
- Area is 227 k LESS than the 2010's Average
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On average 15.9% of Area gains from minimum to maximum done, and 146 days to maximum

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

Average remaining Area gain (of the last 10 years) would produce a maximum in March 2024 of 12.76 million km2, 0.13 million km2 above the March 2016 record low maximum of 12.63 million km2, and 3rd lowest in the 44 year satellite record.
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N.B. Click on image to enlarge

gerontocrat · « **Reply #1140 on:** October 17, 2023, 09:38:03 AM »

JAXA ARCTIC SEA ICE EXTENT: 5,925,150 KM2 as at 16-Oct-2023

- Extent gain on this day 179k which is 80 k more than the average gain on this day (of the last 10 years) of 99k,
- Extent gain from minimum on this date is 1,789 k, which is 7 k, 0.4% less than the 10 year average of 1,796 k.

- Extent is 8th lowest in the 44 year satellite record.

- Extent is 493 k LESS than 2021,
- Extent is 996 k MORE than 2020,
- Extent is 144 k MORE than 2018,
- Extent is 538 k LESS than 2017
- Extent is 283 k MORE than 2012
- Extent is 3,032 k LESS than the 1980’s Average
- Extent is 319 k LESS than the 2010's Average.

On average 18.3% of extent gains from minimum to maximum done, and 142 days to maximum.

Projections. (Table JAXA-Arc1)

Average remaining extent gain (of the last 10 years) would produce a maximum in March 2024 of 13.93 million km2, 0.06 million km2 above the March 2017 record low maximum of 13.88 million km2, which would be 3st lowest in the satellite record.
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N.B. Click on image to enlarge

Juan C. García · « **Reply #1141 on:** October 17, 2023, 10:24:59 AM »

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

October 16^th, 2023:
5,925,150 km², a century break increase of 178,528 km².

For comments, see the first post in this thread.
Source: https://ads.nipr.ac.jp/vishop/#/extent

gerontocrat · « **Reply #1142 on:** October 17, 2023, 04:40:53 PM »

NSIDC ARCTIC SEA ICE AREA (5-day trailing average): 4,560,940 KM2 as at 16-Oct-2023

- Area gain on this day 98k, which is 5 k more than the average gain on this day (of the last 10 years) of 93k,
- Area gain from minimum on this date is 1,892 k, which is 225 k, 13.5% more than the 10 year average of 1,667 k.

- Area is at position #7 in the satellite record (#1=lowest),

- Area is 357 k LESS than 2022,
- Area is 579 k LESS than 2021,
- Area is 582 k MORE than 2020,
- Area is 390 k LESS than 2017
- Area is 2,947 k LESS than the 1980’s Average
- Area is 227 k LESS than the 2010's Average
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On average 16.9% of Area gains from minimum to maximum done, and 145 days to maximum

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

Average remaining Area gain (of the last 10 years) would produce a maximum in March 2024 of 12.77 million km2, 0.14 million km2 above the March 2016 record low maximum of 12.63 million km2, and 3rd lowest in the 44 year satellite record.
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N.B. Click on image to enlarge

Juan C. García · « **Reply #1143 on:** October 18, 2023, 06:38:50 AM »

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

October 17^th, 2023:
6,159,013 km², a two century break increase of 233,863 km².

For comments, see the first post in this thread.
Source: https://ads.nipr.ac.jp/vishop/#/extent

gerontocrat · « **Reply #1144 on:** October 18, 2023, 11:51:56 AM »

JAXA ARCTIC SEA ICE EXTENT: 6,159,013 KM2 as at 17-Oct-2023

- Extent gain on this day 234k which is 114 k more than the average gain on this day (of the last 10 years) of 120k,
- Extent gain from minimum on this date is 2,023 k, which is 108 k, 5.6% more than the 10 year average of 1,915 k.

- Extent is 8th lowest in the 44 year satellite record.

- Extent is 423 k LESS than 2021,
- Extent is 1,200 k MORE than 2020,
- Extent is 386 k MORE than 2018,
- Extent is 430 k LESS than 2017
- Extent is 355 k MORE than 2012
- Extent is 2,850 k LESS than the 1980’s Average
- Extent is 206 k LESS than the 2010's Average.

On average 19.5% of extent gains from minimum to maximum done, and 141 days to maximum.

Projections. (Table JAXA-Arc1)

Average remaining extent gain (of the last 10 years) would produce a maximum in March 2024 of 14.05 million km2, 0.17 million km2 above the March 2017 record low maximum of 13.88 million km2, which would be 5th lowest in the satellite record.
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N.B. Click on image to enlarge

gerontocrat · « **Reply #1145 on:** October 18, 2023, 02:39:31 PM »

NSIDC ARCTIC SEA ICE AREA (5-day trailing average): 4,675,500 KM2 as at 17-Oct-2023

- Area gain on this day 115k, which is 24 k more than the average gain on this day (of the last 10 years) of 91k,
- Area gain from minimum on this date is 2,007 k, which is 249 k, 14.2% more than the 10 year average of 1,758 k.

- Area is at position #8 in the satellite record (#1=lowest),

- Area is 350 k LESS than 2022,
- Area is 552 k LESS than 2021,
- Area is 643 k MORE than 2020,
- Area is 357 k LESS than 2017
- Area is 2,916 k LESS than the 1980’s Average
- Area is 210 k LESS than the 2010's Average
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On average 17.8% of Area gains from minimum to maximum done, and 144 days to maximum

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

Average remaining Area gain (of the last 10 years) would produce a maximum in March 2024 of 12.79 million km2, 0.16 million km2 above the March 2016 record low maximum of 12.63 million km2, and 3rd lowest in the 44 year satellite record.
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N.B. Click on image to enlarge

gerontocrat · « **Reply #1146 on:** October 18, 2023, 02:42:26 PM »

NSIDC ARCTIC SEA ICE AREA (5-day trailing average):

High Arctic sea ice area increasing strongly, while in the Peripheral Seas sea ice area gains continue to stall and on this day falls by a modest 2k.

Juan C. García · « **Reply #1147 on:** October 19, 2023, 05:53:32 AM »

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

October 18^th, 2023:
6,390,844 km², a two century break increase of 231,831 km².

For comments, see the first post in this thread.
Source: https://ads.nipr.ac.jp/vishop/#/extent

gerontocrat · « **Reply #1148 on:** October 19, 2023, 11:12:35 AM »

JAXA ARCTIC SEA ICE EXTENT: 6,390,844 KM2 as at 18-Oct-2023

- Extent gain on this day 232k which is 94 k more than the average gain on this day (of the last 10 years) of 138k,
- Extent gain from minimum on this date is 2,255 k, which is 202 k, 9.8% more than the 10 year average of 2,053 k.

- Extent is 8th lowest in the 44 year satellite record.

- Extent is 362 k LESS than 2021,
- Extent is 1,391 k MORE than 2020,
- Extent is 522 k MORE than 2018,
- Extent is 386 k LESS than 2017
- Extent is 421 k MORE than 2012
- Extent is 2,667 k LESS than the 1980’s Average
- Extent is 112 k LESS than the 2010's Average.

On average 20.9% of extent gains from minimum to maximum done, and 140 days to maximum.

Projections. (Table JAXA-Arc1)

Average remaining extent gain (of the last 10 years) would produce a maximum in March 2024 of 14.14 million km2, 0.26 million km2 above the March 2017 record low maximum of 13.88 million km2, which would be 8th lowest in the satellite record.
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N.B. Click on image to enlarge

gerontocrat · « **Reply #1149 on:** October 19, 2023, 01:10:20 PM »

NSIDC ARCTIC SEA ICE AREA (5-day trailing average): 4,820,637 KM2 as at 18-Oct-2023

- Area gain on this day 145k, which is 50 k more than the average gain on this day (of the last 10 years) of 95k,
- Area gain from minimum on this date is 2,152 k, which is 299 k, 16.1% more than the 10 year average of 1,853 k.

- Area is at position #8 in the satellite record (#1=lowest),

- Area is 314 k LESS than 2022,
- Area is 505 k LESS than 2021,
- Area is 738 k MORE than 2020,
- Area is 320 k LESS than 2017
- Area is 2,855 k LESS than the 1980’s Average
- Area is 170 k LESS than the 2010's Average
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On average 18.8% of Area gains from minimum to maximum done, and 143 days to maximum

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

Average remaining Area gain (of the last 10 years) would produce a maximum in March 2024 of 12.84 million km2, 0.21 million km2 above the March 2016 record low maximum of 12.63 million km2, and 3rd lowest in the 44 year satellite record.
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N.B. Click on image to enlarge

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Author Topic: 2023 Sea ice area and extent data (Read 343824 times)