Author Topic: 2023 Sea ice area and extent data (Read 333571 times)

Juan C. García · « **Reply #800 on:** August 01, 2023, 05:54:25 AM »

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

July 31^st, 2023:
6,689,875 km², a drop of -89,256 km².

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

gerontocrat · « **Reply #801 on:** August 01, 2023, 07:45:51 AM »

JAXA ARCTIC SEA ICE EXTENT: 6,689,875 KM2 as at 31-Jul-2023

- Extent loss on this day 89k, 29 k more than the average loss on this day (of the last 10 years) of 60k,
- Extent loss from maximum on this date is 7,434 k, which is 366 k, 4.7% less than the 10 year average of 7,800 k.

- Extent is 13th lowest in the 44 year satellite record.

- Extent is 26 k MORE than 2022,
- Extent is 392 k MORE than 2021,
- Extent is 933 k MORE than 2020,
- Extent is 734 k MORE than 2019,
- Extent is 252 k MORE than 2016
- Extent is 593 k MORE than 2012
- Extent is 245 k MORE than the 2010's Average
_____________________________________________
On average 79.2% of extent losses from maximum to minimum done, and on average 45 days to minimum

Projections. (Table JAXA-Arc1)

Average remaining extent loss (of the last 10 years) would produce a minimum in September 2023 of 4.65 million km2, 1.47 million km2 above the Sept 2012 record low minimum of 3.18 million km2, and 14th lowest in the satellite record
_______________________________________________________________
N.B. Click on images to enlarge

gerontocrat · « **Reply #802 on:** August 01, 2023, 10:06:39 AM »

JAXA ARCTIC SEA ICE EXTENT: Another month gone so here is a look at July data.

The July 2023 monthly average sea ice extent was 7.94 million km2, 13th lowest in the 45 year satellite record, 0.73 million km2 above the longterm linear trend, and 0.01 million km2 below the July 2022 average. July was a below average sea ice extent loss month.

If daily sea ice extent gains and losses are at the average of the last 10 years for the remaining 5 months of the year, 2023 daily average extent for the year will be 10.19 million km2, 12th lowest in the 45 year satellite record, 0.44 million km2 above the longterm linear trend, and equal to the 2022 average.

gerontocrat · « **Reply #803 on:** August 01, 2023, 10:22:00 AM »

JAXA ARCTIC SEA ICE EXTENT:

The 365 day trailing average on July 31 ended up unchanged from July 1 at 10.121 million km2, 0.45 million km2 above the longterm linear trend, and 0.49 million km2 above the record low in March 2021.

Average sea ice extent loses and gains from now would see the average increase to the end of the year but then followed bynot much change in 2024.

July 2023 was yet another month of lacklustre sea ice loss

gerontocrat · « **Reply #804 on:** August 01, 2023, 05:33:35 PM »

One day data in line with the poll....

NSIDC ARCTIC SEA ICE Extent (one day data): 6,817,000 KM2 as at 31-Jul-2023

- Extent loss on this day 38k, 31 k less than the average loss on this day (of the last 10 years) of 69k,
- Extent loss from maximum on this date is 7,829 k, which is 341 k, 4.2% less than the 10 year average of 8,170 k.

- Extent is at position #11 in the satellite record (#1=lowest),

- Extent is 73 k LESS than 2022,
- Extent is 783 k MORE than 2020,
- Extent is 140 k MORE than 2016
- Extent is 449 k MORE than 2012
- Extent is 142 k MORE than the 2010's Average
_____________________________________________
On average 79.5% of Extent losses from maximum to minimum done, and 41 days to minimum

Projections.

Average remaining Extent loss (of the last 10 years) would produce a minimum in Sept 2023 of 4.71 million km2, 1.37 million km2 above the Sept 2012 record low maximum of 3.39 million km2, and 13th lowest in the 45 year satellite record.
_______________________________________________________________
N.B. Click on image to enlarge

gerontocrat · « **Reply #805 on:** August 01, 2023, 06:29:00 PM »

NSIDC ARCTIC SEA ICE AREA (5-day trailing average): 4,488,989 KM2 as at 31-Jul-2023

- Area loss on this day 37k, 30 k less than the average loss on this day (of the last 10 years) of 67k,
- Area loss from maximum on this date is 8,444 k, which is 7 k, 0.1% less than the 10 year average of 8,451 k.

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

- Area is 488 k LESS than 2022,
- Area is 630 k MORE than 2020,
- Area is 217 k MORE than 2016
- Area is 404 k MORE than 2012
- Area is 56 k LESS than the 2010's Average
_____________________________________________
On average 85.1% of Area losses from maximum to minimum done, and 41 days to minimum

Projections.

Average remaining Area loss (of the last 10 years) would produce a minimum in Sept 2023 of 3.01 million km2, 0.76 million km2 above the Sept 2012 record low maximum of 2.25 million km2, and 6th lowest in the 45 year satellite record.
_______________________________________________________________
N.B. Click on image to enlarge

Juan C. García · « **Reply #806 on:** August 02, 2023, 06:05:22 AM »

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

August 1^st, 2023:
6,617,290 km², a drop of -72,585 km².

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

gerontocrat · « **Reply #807 on:** August 02, 2023, 08:11:27 PM »

Power cut today.

JAXA ARCTIC SEA ICE EXTENT: 6,617,290 KM2 as at 01-Aug-2023

- Extent loss on this day 73k, 5 k more than the average loss on this day (of the last 10 years) of 68k,
- Extent loss from maximum on this date is 7,506 k, which is 361 k, 4.6% less than the 10 year average of 7,867 k.

- Extent is 12th lowest in the 44 year satellite record.

- Extent is 32 k MORE than 2022,
- Extent is 367 k MORE than 2021,
- Extent is 899 k MORE than 2020,
- Extent is 712 k MORE than 2019,
- Extent is 295 k MORE than 2016
- Extent is 535 k MORE than 2012
- Extent is 236 k MORE than the 2010's Average
_____________________________________________
On average 79.9% of extent losses from maximum to minimum done, and on average 44 days to minimum

Projections. (Table JAXA-Arc1)

Average remaining extent loss (of the last 10 years) would produce a minimum in September 2023 of 4.64 million km2, 1.46 million km2 above the Sept 2012 record low minimum of 3.18 million km2, and 14th lowest in the satellite record
_______________________________________________________________
N.B. Click on images to enlarge

gerontocrat · « **Reply #808 on:** August 02, 2023, 09:07:47 PM »

NSIDC ARCTIC SEA ICE AREA (5-day trailing average): 4,453,196 KM2 as at 01-Aug-2023

- Area loss on this day 36k, 32 k less than the average loss on this day (of the last 10 years) of 68k,
- Area loss from maximum on this date is 8,480 k, which is 39 k, 0.5% less than the 10 year average of 8,519 k.

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

- Area is 447 k LESS than 2022,
- Area is 658 k MORE than 2020,
- Area is 295 k MORE than 2016
- Area is 483 k MORE than 2012
- Area is 19 k LESS than the 2010's Average
_____________________________________________
On average 85.8% of Area losses from maximum to minimum done, and 40 days to minimum

Projections.

Average remaining Area loss (of the last 10 years) would produce a minimum in Sept 2023 of 3.04 million km2, 0.79 million km2 above the Sept 2012 record low maximum of 2.25 million km2, and 7th lowest in the 45 year satellite record.
_______________________________________________________________
N.B. Click on image to enlarge

Juan C. García · « **Reply #809 on:** August 03, 2023, 06:02:30 AM »

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

August 2^nd, 2023:
6,580,739 km², a drop of -36,551 km².

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

gerontocrat · « **Reply #810 on:** August 03, 2023, 11:56:44 AM »

JAXA ARCTIC SEA ICE EXTENT: 6,580,739 KM2 as at 02-Aug-2023

- Extent loss on this day 37k, 34 k less than the average loss on this day (of the last 10 years) of 71k,
- Extent loss from maximum on this date is 7,543 k, which is 396 k, 5.0% less than the 10 year average of 7,939 k.

- Extent is 14th lowest in the 44 year satellite record.

- Extent is 67 k MORE than 2022,
- Extent is 365 k MORE than 2021,
- Extent is 911 k MORE than 2020,
- Extent is 728 k MORE than 2019,
- Extent is 380 k MORE than 2016
- Extent is 547 k MORE than 2012
- Extent is 270 k MORE than the 2010's Average
_____________________________________________
On average 80.6% of extent losses from maximum to minimum done, and on average 43 days to minimum

Projections. (Table JAXA-Arc1)

Average remaining extent loss (of the last 10 years) would produce a minimum in September 2023 of 4.68 million km2, 1.50 million km2 above the Sept 2012 record low minimum of 3.18 million km2, and 14th lowest in the satellite record
_______________________________________________________________
N.B. Click on images to enlarge

gerontocrat · « **Reply #811 on:** August 03, 2023, 06:47:29 PM »

Another well below average sea ice area and extent loss on this day. With on average over 85% of sea ice loss completed and only around 40 days to the minimum, the window for any upsurge in sea ice losses is rapidly closing.

NSIDC ARCTIC SEA ICE AREA (5-day trailing average): 4,433,431 KM2 as at 02-Aug-2023

- Area loss on this day 20k, 50 k less than the average loss on this day (of the last 10 years) of 70k,
- Area loss from maximum on this date is 8,500 k, which is 90 k, 1.0% less than the 10 year average of 8,589 k.

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

- Area is 400 k LESS than 2022,
- Area is 690 k MORE than 2020,
- Area is 348 k MORE than 2016
- Area is 572 k MORE than 2012
- Area is 36 k MORE than the 2010's Average
_____________________________________________
On average 86.5% of Area losses from maximum to minimum done, and 39 days to minimum

Projections.

Average remaining Area loss (of the last 10 years) would produce a minimum in Sept 2023 of 3.09 million km2, 0.84 million km2 above the Sept 2012 record low maximum of 2.25 million km2, and 8th lowest in the 45 year satellite record.
_______________________________________________________________
N.B. Click on image to enlarge

kiwichick16 · « **Reply #812 on:** August 03, 2023, 10:44:14 PM »

@ gero...... same applies to the other pole...... re gains in sea ice before the spring flaw

Juan C. García · « **Reply #813 on:** August 04, 2023, 06:05:59 AM »

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

August 3^rd, 2023:
6,519,798 km², a drop of -60,941 km².

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

gerontocrat · « **Reply #814 on:** August 04, 2023, 08:46:57 AM »

JAXA ARCTIC SEA ICE EXTENT: 6,519,798 KM2 as at 03-Aug-2023

- Extent loss on this day 61k, 20 k less than the average loss on this day (of the last 10 years) of 81k,
- Extent loss from maximum on this date is 7,604 k, which is 416 k, 5.2% less than the 10 year average of 8,019 k.

- Extent is 14th lowest in the 44 year satellite record.

- Extent is 87 k MORE than 2022,
- Extent is 375 k MORE than 2021,
- Extent is 907 k MORE than 2020,
- Extent is 734 k MORE than 2019,
- Extent is 435 k MORE than 2016
- Extent is 609 k MORE than 2012
- Extent is 294 k MORE than the 2010's Average
_____________________________________________
On average 81.5% of extent losses from maximum to minimum done, and on average 42 days to minimum

Projections. (Table JAXA-Arc1)

Average remaining extent loss (of the last 10 years) would produce a minimum in September 2023 of 4.70 million km2, 1.52 million km2 above the Sept 2012 record low minimum of 3.18 million km2, and 14th lowest in the satellite record
_______________________________________________________________
N.B. Click on images to enlarge

gerontocrat · « **Reply #815 on:** August 04, 2023, 03:09:02 PM »

NSIDC ARCTIC SEA ICE AREA (5-day trailing average): 4,377,329 KM2 as at 03-Aug-2023

- Area loss on this day 56k, 14 k less than the average loss on this day (of the last 10 years) of 70k,
- Area loss from maximum on this date is 8,556 k, which is 103 k, 1.2% less than the 10 year average of 8,659 k.

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

- Area is 395 k LESS than 2022,
- Area is 673 k MORE than 2020,
- Area is 361 k MORE than 2016
- Area is 618 k MORE than 2012
- Area is 51 k MORE than the 2010's Average
_____________________________________________
On average 87.2% of Area losses from maximum to minimum done, and 38 days to minimum

Projections.

Average remaining Area loss (of the last 10 years) would produce a minimum in Sept 2023 of 3.10 million km2, 0.86 million km2 above the Sept 2012 record low maximum of 2.25 million km2, and 9th lowest in the 45 year satellite record.
_______________________________________________________________
N.B. Click on image to enlarge

Juan C. García · « **Reply #816 on:** August 05, 2023, 06:15:36 AM »

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

August 4^th, 2023:
6,403,519 km², a century break drop of -116,279 km².

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

gerontocrat · « **Reply #817 on:** August 05, 2023, 09:04:51 AM »

JAXA ARCTIC SEA ICE EXTENT: 6,403,519 KM2 as at 04-Aug-2023

- Extent loss on this day 116k, 40 k more than the average loss on this day (of the last 10 years) of 76k,
- Extent loss from maximum on this date is 7,720 k, which is 375 k, 4.6% less than the 10 year average of 8,095 k.

- Extent is 12th lowest in the 44 year satellite record.

- Extent is 39 k MORE than 2022,
- Extent is 389 k MORE than 2021,
- Extent is 849 k MORE than 2020,
- Extent is 684 k MORE than 2019,
- Extent is 366 k MORE than 2016
- Extent is 615 k MORE than 2012
- Extent is 252 k MORE than the 2010's Average
_____________________________________________
On average 82.2% of extent losses from maximum to minimum done, and on average 41 days to minimum

Projections. (Table JAXA-Arc1)

Average remaining extent loss (of the last 10 years) would produce a minimum in September 2023 of 4.65 million km2, 1.48 million km2 above the Sept 2012 record low minimum of 3.18 million km2, and 14th lowest in the satellite record
_______________________________________________________________
N.B. Click on images to enlarge

gerontocrat · « **Reply #818 on:** August 05, 2023, 01:33:21 PM »

NSIDC ARCTIC SEA ICE AREA (5-day trailing average): 4,329,355 KM2 as at 04-Aug-2023

- Area loss on this day 48k, 15 k less than the average loss on this day (of the last 10 years) of 63k,
- Area loss from maximum on this date is 8,604 k, which is 118 k, 1.3% less than the 10 year average of 8,722 k.

- Area is at position #9 in the satellite record (#1=lowest),

- Area is 374 k LESS than 2022,
- Area is 671 k MORE than 2020,
- Area is 353 k MORE than 2016
- Area is 650 k MORE than 2012
- Area is 65 k MORE than the 2010's Average
_____________________________________________
On average 87.8% of Area losses from maximum to minimum done, and 37 days to minimum

Projections.

Average remaining Area loss (of the last 10 years) would produce a minimum in Sept 2023 of 3.12 million km2, 0.87 million km2 above the Sept 2012 record low maximum of 2.25 million km2, and 9th lowest in the 45 year satellite record.
_______________________________________________________________
N.B. Click on image to enlarge

Juan C. García · « **Reply #819 on:** August 06, 2023, 06:06:49 AM »

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

August 5^th, 2023:
6,241,358 km², a century break drop of -162,161 km².

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

gerontocrat · « **Reply #820 on:** August 06, 2023, 12:16:27 PM »

On this day at 162k the largest one day sea ice extent drop this year, and 2 century breaks in a row. But will we see a third (or more) century break in a row and/or consistently above average daily losses to make a real difference to the final outcome for this year's minimum?

JAXA ARCTIC SEA ICE EXTENT: 6,241,358 KM2 as at 05-Aug-2023

- Extent loss on this day 162k, 95 k more than the average loss on this day (of the last 10 years) of 67k,
- Extent loss from maximum on this date is 7,882 k, which is 281 k, 3.4% less than the 10 year average of 8,163 k.

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

- Extent is 71 k LESS than 2022,
- Extent is 340 k MORE than 2021,
- Extent is 739 k MORE than 2020,
- Extent is 629 k MORE than 2019,
- Extent is 279 k MORE than 2016
- Extent is 593 k MORE than 2012
- Extent is 163 k MORE than the 2010's Average
_____________________________________________
On average 82.9% of extent losses from maximum to minimum done, and on average 40 days to minimum

Projections. (Table JAXA-Arc1)

Average remaining extent loss (of the last 10 years) would produce a minimum in September 2023 of 4.56 million km2, 1.38 million km2 above the Sept 2012 record low minimum of 3.18 million km2, and 12th lowest in the satellite record
_______________________________________________________________
N.B. Click on images to enlarge

gerontocrat · « **Reply #821 on:** August 06, 2023, 02:18:06 PM »

NSIDC ARCTIC SEA ICE AREA (5-day trailing average): 4,253,652 KM2 as at 05-Aug-2023

- Area loss on this day 76k, 13 k more than the average loss on this day (of the last 10 years) of 63k,
- Area loss from maximum on this date is 8,680 k, which is 105 k, 1.2% less than the 10 year average of 8,785 k.

- Area is at position #9 in the satellite record (#1=lowest),

- Area is 369 k LESS than 2022,
- Area is 637 k MORE than 2020,
- Area is 327 k MORE than 2016
- Area is 645 k MORE than 2012
- Area is 52 k MORE than the 2010's Average
_____________________________________________
On average 88.4% of Area losses from maximum to minimum done, and 36 days to minimum

Projections.

Average remaining Area loss (of the last 10 years) would produce a minimum in Sept 2023 of 3.11 million km2, 0.86 million km2 above the Sept 2012 record low maximum of 2.25 million km2, and 9th lowest in the 45 year satellite record.
_______________________________________________________________
N.B. Click on image to enlarge

Juan C. García · « **Reply #822 on:** August 07, 2023, 05:53:08 AM »

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

August 6^th, 2023:
6,127,957 km², a century break drop of -113,401 km².

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

gerontocrat · « **Reply #823 on:** August 07, 2023, 06:33:34 AM »

JAXA ARCTIC SEA ICE EXTENT: 6,127,957 KM2 as at 06-Aug-2023

- Extent loss on this day 113k, 53 k more than the average loss on this day (of the last 10 years) of 60k,
- Extent loss from maximum on this date is 7,996 k, which is 227 k, 2.8% less than the 10 year average of 8,223 k.

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

- Extent is 136 k LESS than 2022,
- Extent is 270 k MORE than 2021,
- Extent is 639 k MORE than 2020,
- Extent is 616 k MORE than 2019,
- Extent is 259 k MORE than 2016
- Extent is 634 k MORE than 2012
- Extent is 128 k MORE than the 2010's Average
_____________________________________________
On average 83.5% of extent losses from maximum to minimum done, and on average 39 days to minimum

Projections. (Table JAXA-Arc1)

Average remaining extent loss (of the last 10 years) would produce a minimum in September 2023 of 4.51 million km2, 1.33 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

gerontocrat · « **Reply #824 on:** August 07, 2023, 08:18:20 PM »

NSIDC ARCTIC SEA ICE AREA (5-day trailing average): 4,151,361 KM2 as at 06-Aug-2023

- Area loss on this day 102k, 38 k more than the average loss on this day (of the last 10 years) of 64k,
- Area loss from maximum on this date is 8,782 k, which is 67 k, 0.8% less than the 10 year average of 8,849 k.

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

- Area is 373 k LESS than 2022,
- Area is 574 k MORE than 2020,
- Area is 288 k MORE than 2016
- Area is 618 k MORE than 2012
- Area is 8 k MORE than the 2010's Average
_____________________________________________
On average 89.1% of Area losses from maximum to minimum done, and 35 days to minimum

Projections.

Average remaining Area loss (of the last 10 years) would produce a minimum in Sept 2023 of 3.07 million km2, 0.82 million km2 above the Sept 2012 record low maximum of 2.25 million km2, and 8th lowest in the 45 year satellite record.
_______________________________________________________________
N.B. Click on image to enlarge

kiwichick16 · « **Reply #825 on:** August 07, 2023, 10:42:30 PM »

Flirting with the 2010's average again

Juan C. García · « **Reply #826 on:** August 08, 2023, 05:46:52 AM »

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

August 7^th, 2023:
6,065,186 km², a drop of -62,771 km².

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

gerontocrat · « **Reply #827 on:** August 08, 2023, 08:22:57 AM »

JAXA ARCTIC SEA ICE EXTENT: 6,065,186 KM2 as at 07-Aug-2023

- Extent loss on this day 63k, 1 k less than the average loss on this day (of the last 10 years) of 64k,
- Extent loss from maximum on this date is 8,058 k, which is 228 k, 2.8% less than the 10 year average of 8,286 k.

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

- Extent is 159 k LESS than 2022,
- Extent is 188 k MORE than 2021,
- Extent is 606 k MORE than 2020,
- Extent is 649 k MORE than 2019,
- Extent is 280 k MORE than 2016
- Extent is 690 k MORE than 2012
- Extent is 144 k MORE than the 2010's Average
_____________________________________________
On average 84.2% of extent losses from maximum to minimum done, and on average 38 days to minimum

Projections. (Table JAXA-Arc1)

Average remaining extent loss (of the last 10 years) would produce a minimum in September 2023 of 4.51 million km2, 1.33 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

gerontocrat · « **Reply #828 on:** August 08, 2023, 01:29:50 PM »

Sea ice area loss has certainly accelerated, especially in the High Arctic. The question as usual - is it a blip or will it be sustained? The one-day data from Nico Sun within the hour will give us a clue.

NSIDC ARCTIC SEA ICE AREA (5-day trailing average): 4,029,027 KM2 as at 07-Aug-2023

- Area loss on this day 122k, 68 k more than the average loss on this day (of the last 10 years) of 54k,
- Area loss from maximum on this date is 8,904 k, which is 1 k, 0.0% more than the 10 year average of 8,903 k.

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

- Area is 418 k LESS than 2022,
- Area is 482 k MORE than 2020,
- Area is 234 k MORE than 2016
- Area is 600 k MORE than 2012
- Area is 60 k LESS than the 2010's Average
_____________________________________________
On average 89.6% of Area losses from maximum to minimum done, and 34 days to minimum

Projections.

Average remaining Area loss (of the last 10 years) would produce a minimum in Sept 2023 of 3.00 million km2, 0.75 million km2 above the Sept 2012 record low maximum of 2.25 million km2, and 6th lowest in the 45 year satellite record.
_______________________________________________________________
N.B. Click on image to enlarge

gerontocrat · « **Reply #829 on:** August 08, 2023, 01:39:20 PM »

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

The sea ice loss in the High Arctic on this day was 111k, of which approaching 50% was in the Central Arctic region.
The losses in the Peripheral **Regions have increased slightly.

**NSIDC calls them regions, not seas. This seems to be because the boundaries chosen by NSIDC for their tables often do not compately corresopond to offiocal boundaries of named seas. For example, Russia seems to claim that the Kara, Laptev, and ESS (and the Chukchi?) seas extend as far as the North Pole.

gerontocrat · « **Reply #830 on:** August 08, 2023, 01:51:14 PM »

NSIDC ARCTIC SEA ICE AREA (5-day trailing average): High Arctic Regional Graphs

In this and the next post I show the graphs of sea ice area for the 7 NSIDC regions of the High Arctic, starting with the NSIDC map of the regional boundaries compared to those that were used by Wipneus and are now closely followed by Steven's analysyes and AMSR2 data and images..

No commentary

gerontocrat · « **Reply #831 on:** August 08, 2023, 01:52:38 PM »

NSIDC ARCTIC SEA ICE AREA (5-day trailing average): more High Arctic Regional Graphs

gerontocrat · « **Reply #832 on:** August 08, 2023, 02:09:56 PM »

Nico Sun's one-day sea ice rea graph from NSIDC data shows a reduced daily loss of 87k, but still well above average for this time of year.

Juan C. García · « **Reply #833 on:** August 09, 2023, 06:33:32 AM »

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

August 8^th, 2023:
6,032,189 km², a drop of -32,997 km².

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

gerontocrat · « **Reply #834 on:** August 09, 2023, 07:01:21 AM »

JAXA ARCTIC SEA ICE EXTENT: 6,032,189 KM2 as at 08-Aug-2023

- Extent loss on this day 33k, 37 k less than the average loss on this day (of the last 10 years) of 70k,
- Extent loss from maximum on this date is 8,091 k, which is 265 k, 3.2% less than the 10 year average of 8,357 k.

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

- Extent is 154 k LESS than 2022,
- Extent is 189 k MORE than 2021,
- Extent is 641 k MORE than 2020,
- Extent is 698 k MORE than 2019,
- Extent is 326 k MORE than 2016
- Extent is 840 k MORE than 2012
- Extent is 200 k MORE than the 2010's Average
_____________________________________________
On average 84.9% of extent losses from maximum to minimum done, and on average 37 days to minimum

Projections. (Table JAXA-Arc1)

Average remaining extent loss (of the last 10 years) would produce a minimum in September 2023 of 4.55 million km2, 1.37 million km2 above the Sept 2012 record low minimum of 3.18 million km2, and 12th lowest in the satellite record
_______________________________________________________________
N.B. Click on images to enlarge

gerontocrat · « **Reply #835 on:** August 09, 2023, 01:28:07 PM »

NSIDC ARCTIC SEA ICE AREA (5-day trailing average): 3,945,372 KM2 as at 08-Aug-2023

- Area loss on this day 84k, 33 k more than the average loss on this day (of the last 10 years) of 51k,
- Area loss from maximum on this date is 8,988 k, which is 34 k, 0.4% more than the 10 year average of 8,954 k.

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

- Area is 437 k LESS than 2022,
- Area is 429 k MORE than 2020,
- Area is 209 k MORE than 2016
- Area is 609 k MORE than 2012
- Area is 94 k LESS than the 2010's Average
_____________________________________________
On average 90.2% of Area losses from maximum to minimum done, and 33 days to minimum

Projections.

Average remaining Area loss (of the last 10 years) would produce a minimum in Sept 2023 of 2.97 million km2, 0.72 million km2 above the Sept 2012 record low maximum of 2.25 million km2, and 6th lowest in the 45 year satellite record.
_______________________________________________________________
N.B. Click on image to enlarge

Juan C. García · « **Reply #836 on:** August 10, 2023, 07:07:31 AM »

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

August 9^th, 2023:
5,960,583 km², a drop of -71,606 km².

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

gerontocrat · « **Reply #837 on:** August 10, 2023, 09:25:11 AM »

JAXA ARCTIC SEA ICE EXTENT: 5,960,583 KM2 as at 09-Aug-2023

- Extent loss on this day 72k, 2 k less than the average loss on this day (of the last 10 years) of 74k,
- Extent loss from maximum on this date is 8,163 k, which is 268 k, 3.2% less than the 10 year average of 8,431 k.

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

- Extent is 154 k LESS than 2022,
- Extent is 179 k MORE than 2021,
- Extent is 663 k MORE than 2020,
- Extent is 721 k MORE than 2019,
- Extent is 304 k MORE than 2016
- Extent is 925 k MORE than 2012
- Extent is 210 k MORE than the 2010's Average
_____________________________________________
On average 85.6% of extent losses from maximum to minimum done, and on average 36 days to minimum

Projections. (Table JAXA-Arc1)

Average remaining extent loss (of the last 10 years) would produce a minimum in September 2023 of 4.55 million km2, 1.37 million km2 above the Sept 2012 record low minimum of 3.18 million km2, and 12th lowest in the satellite record
_______________________________________________________________
N.B. Click on images to enlarge

gerontocrat · « **Reply #838 on:** August 10, 2023, 05:50:13 PM »

NSIDC ARCTIC SEA ICE AREA (5-day trailing average): 3,880,849 KM2 as at 09-Aug-2023

- Area loss on this day 65k, 20 k more than the average loss on this day (of the last 10 years) of 45k,
- Area loss from maximum on this date is 9,052 k, which is 53 k, 0.6% more than the 10 year average of 8,999 k.

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

- Area is 455 k LESS than 2022,
- Area is 381 k MORE than 2020,
- Area is 208 k MORE than 2016
- Area is 637 k MORE than 2012
- Area is 107 k LESS than the 2010's Average
_____________________________________________
On average 90.6% of Area losses from maximum to minimum done, and 32 days to minimum

Projections.

Average remaining Area loss (of the last 10 years) would produce a minimum in Sept 2023 of 2.95 million km2, 0.70 million km2 above the Sept 2012 record low maximum of 2.25 million km2, and 5th lowest in the 45 year satellite record.
_______________________________________________________________
N.B. Click on image to enlarge

gerontocrat · « **Reply #839 on:** August 11, 2023, 12:03:35 AM »

As most are looking at the 7 regions in the High Arctic, here is an update.
High Arctic sea ice area Sept minimum now projected to be 4th lowest in the satellite record.

NSIDC HIGH ARCTIC SEA ICE AREA (5-day trailing average): 3,607,616 KM2 as at 09-Aug-2023

- Area loss on this day 58k, 19 k more than the average loss on this day (of the last 10 years) of 39k,
- Area loss from maximum on this date is 5,108 k, which is 294 k, 6.1% more than the 10 year average of 4,814 k.

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

- Area is 497 k LESS than 2022,
- Area is 318 k MORE than 2020,
- Area is 109 k MORE than 2016
- Area is 608 k MORE than 2012
- Area is 125 k LESS than the 2010's Average
_____________________________________________
On average 84.6% of Area losses from maximum to minimum done, and 33 days to minimum

Projections.

Average remaining High Arctic Area loss (of the last 10 years) would produce a minimum in Sept 2023 of 2.73 million km2, 0.67 million km2 above the Sept 2012 record low maximum of 2.25 million km2, and 4th lowest in the 45 year satellite record.
_______________________________________________________________
N.B. Click on image to enlarge

kiwichick16 · « **Reply #840 on:** August 11, 2023, 03:07:51 AM »

@ gero ...are the high sea / air temps going to have an effect on this years melt?

Juan C. García · « **Reply #841 on:** August 11, 2023, 06:37:33 AM »

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

August 10^th, 2023:
5,872,588 km², a drop of -87,995 km².

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

gerontocrat · « **Reply #842 on:** August 11, 2023, 07:51:02 AM »

JAXA ARCTIC SEA ICE EXTENT: 5,872,588 KM2 as at 10-Aug-2023

- Extent loss on this day 88k, 19 k more than the average loss on this day (of the last 10 years) of 69k,
- Extent loss from maximum on this date is 8,251 k, which is 249 k, 2.9% less than the 10 year average of 8,500 k.

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

- Extent is 170 k LESS than 2022,
- Extent is 116 k MORE than 2021,
- Extent is 611 k MORE than 2020,
- Extent is 766 k MORE than 2019,
- Extent is 291 k MORE than 2016
- Extent is 929 k MORE than 2012
- Extent is 204 k MORE than the 2010's Average
_____________________________________________
On average 86.4% of extent losses from maximum to minimum done, and on average 35 days to minimum

Projections. (Table JAXA-Arc1)

Average remaining extent loss (of the last 10 years) would produce a minimum in September 2023 of 4.53 million km2, 1.35 million km2 above the Sept 2012 record low minimum of 3.18 million km2, and 12th lowest in the satellite record
_______________________________________________________________
N.B. Click on images to enlarge

gerontocrat · « **Reply #843 on:** August 11, 2023, 08:27:49 AM »

Quote from: kiwichick16 on August 11, 2023, 03:07:51 AM

@ gero ...are the high sea / air temps going to have an effect on this years melt?

Will we see a warm late summer in the Arctic and a warmer than average Arctic winter (El Nino) ?
Will melt accelerate and keep going longer?
Will refreeze be late and slow?

If I could answer these questions I would get a Nobel prize, but all I can say is High Arctic daily sea ice area losses have been mostly above average in the last month.

gerontocrat · « **Reply #844 on:** August 11, 2023, 03:17:02 PM »

NSIDC ARCTIC SEA ICE AREA (5-day trailing average): 3,832,707 KM2 as at 10-Aug-2023

- Area loss on this day 48k, 4 k more than the average loss on this day (of the last 10 years) of 44k,
- Area loss from maximum on this date is 9,101 k, which is 57 k, 0.6% more than the 10 year average of 9,043 k.

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

- Area is 474 k LESS than 2022,
- Area is 354 k MORE than 2020,
- Area is 201 k MORE than 2016
- Area is 664 k MORE than 2012
- Area is 108 k LESS than the 2010's Average
_____________________________________________
On average 91.1% of Area losses from maximum to minimum done, and 31 days to minimum

Projections.

Average remaining Area loss (of the last 10 years) would produce a minimum in Sept 2023 of 2.94 million km2, 0.70 million km2 above the Sept 2012 record low maximum of 2.25 million km2, and 5th lowest in the 45 year satellite record.
_______________________________________________________________
N.B. Click on image to enlarge

Renerpho · « **Reply #845 on:** August 11, 2023, 04:16:37 PM »

Quote from: gerontocrat on August 11, 2023, 08:27:49 AM

If I could answer these questions I would get a Nobel prize

I can answer those questions. I will even be right about half of the time.

People have answers, alright. It's just they're all different.

kiwichick16 · « **Reply #846 on:** August 11, 2023, 04:19:44 PM »

@ gero ...... a Nobel prize ...... now theres a thought !

Juan C. García · « **Reply #847 on:** August 12, 2023, 06:36:02 AM »

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

August 11^th, 2023:
5,792,283 km², a drop of -80,305 km².

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

gerontocrat · « **Reply #848 on:** August 12, 2023, 07:29:08 AM »

JAXA ARCTIC SEA ICE EXTENT: 5,792,283 KM2 as at 11-Aug-2023

- Extent loss on this day 80k, 14 k more than the average loss on this day (of the last 10 years) of 66k,
- Extent loss from maximum on this date is 8,331 k, which is 235 k, 2.7% less than the 10 year average of 8,566 k.

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

- Extent is 203 k LESS than 2022,
- Extent is 73 k MORE than 2021,
- Extent is 561 k MORE than 2020,
- Extent is 792 k MORE than 2019,
- Extent is 298 k MORE than 2016
- Extent is 904 k MORE than 2012
- Extent is 195 k MORE than the 2010's Average
_____________________________________________
On average 87.0% of extent losses from maximum to minimum done, and on average 34 days to minimum

Projections. (Table JAXA-Arc1)

Average remaining extent loss (of the last 10 years) would produce a minimum in September 2023 of 4.51 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

gerontocrat · « **Reply #849 on:** August 12, 2023, 02:54:30 PM »

NSIDC ARCTIC SEA ICE AREA (5-day trailing average): 3,803,298 KM2 as at 11-Aug-2023

- Area loss on this day 29k, 8 k less than the average loss on this day (of the last 10 years) of 37k,
- Area loss from maximum on this date is 9,130 k, which is 50 k, 0.5% more than the 10 year average of 9,080 k.

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

- Area is 468 k LESS than 2022,
- Area is 343 k MORE than 2020,
- Area is 172 k MORE than 2016
- Area is 677 k MORE than 2012
- Area is 95 k LESS than the 2010's Average
_____________________________________________
On average 91.4% of Area losses from maximum to minimum done, and 30 days to minimum

Projections.

Average remaining Area loss (of the last 10 years) would produce a minimum in Sept 2023 of 2.95 million km2, 0.70 million km2 above the Sept 2012 record low maximum of 2.25 million km2, and 5th lowest in the 45 year satellite record.
_______________________________________________________________
N.B. Click on image to enlarge

News:

Author Topic: 2023 Sea ice area and extent data (Read 333571 times)