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BornFromTheVoid

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Re: 2020 Sea ice area and extent data
« Reply #1950 on: December 05, 2020, 03:06:25 PM »
Extent animation for the week.

Extent increased by 729,000 km² (81-10 avg 638,000km²)
I recently joined the twitter thing, where I post more analysis, pics and animations: @Icy_Samuel

gerontocrat

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Re: 2020 Sea ice area and extent data
« Reply #1951 on: December 05, 2020, 03:54:06 PM »
Late again.
Who will write the most terrifying computer game of all - "Call of Duty - XMAS"

JAXA ARCTIC SEA ICE EXTENT:  10,174,699 KM2 as at 04-Dec-2020

- Extent gain on this day 27k, 48 k less than the average gain on this day (of the last 10 years) of 75k,
- Extent gain from minimum on this date is 6,620 k, which is 301 k, 5% more than the 10 year average of 6,319 k.

- Extent is at position #2 in the satellite record

- Extent is  237 k LESS than 2019,
- Extent is  146 k MORE than 2016,
- Extent is  550 k LESS than 2012
- Extent is  503 k LESS than 2007
- Extent is  485 k LESS than the 2010's Average
_____________________________________________
On average 64.0% of extent gains  from minimum to maximum done, and 97 days to maximum

Projections. (Table JAXA-Arc1)

Average remaining extent gain (of the last 10 years) would produce a maximum in March 2021 of 13.73 million km2, 0.14 million km2 below the March 2017 record low maximum of 13.88 million km2.
_______________________________________________________________
A second day of very low extent gain.
_______________________________________________________________
N.B. Click on image to enlarge
"Para a Causa do Povo a Luta Continua!"
"And that's all I'm going to say about that". Forrest Gump
"Damn, I wanted to see what happened next" (Epitaph)

Juan C. García

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Re: 2020 Sea ice area and extent data
« Reply #1952 on: December 06, 2020, 04:33:23 AM »
[ADS NIPR VISHOP (JAXA)] Arctic Sea Ice Extent.

December 5th, 2020:
     10,239,633 km2, an increase of 64,934 km2.
     2020 is 2nd lowest on record.
     In the graph are today's 10 lowest years.
     Highlighted the 5 years with daily lowest minimum on September.

Source: https://ads.nipr.ac.jp/vishop/#/extent.
« Last Edit: December 06, 2020, 04:44:01 AM by Juan C. García »
Which is the best answer to Sep-2012 ASI lost (compared to 1979-2000)?
50% [NSIDC Extent] or
73% [PIOMAS Volume]

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

gerontocrat

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Re: 2020 Sea ice area and extent data
« Reply #1953 on: December 06, 2020, 11:41:49 AM »
JAXA ARCTIC SEA ICE EXTENT:  10,239,633 KM2 as at 05-Dec-2020

- Extent gain on this day 65k, 10 k less than the average gain on this day (of the last 10 years) of 75k,
- Extent gain from minimum on this date is 6,685 k, which is 296 k, 5% more than the 10 year average of 6,389 k.

- Extent is at position #2 in the satellite record

- Extent is  307 k LESS than 2019,
- Extent is  193 k MORE than 2016,
- Extent is  587 k LESS than 2012
- Extent is  551 k LESS than 2007
- Extent is  495 k LESS than the 2010's Average
_____________________________________________
On average 64.7% of extent gains  from minimum to maximum done, and 96 days to maximum

Projections. (Table JAXA-Arc1)

Average remaining extent gain (of the last 10 years) would produce a maximum in March 2021 of 13.72 million km2, 0.15 million km2 below the March 2017 record low maximum of 13.88 million km2.
_______________________________________________________________
N.B. Click on image to enlarge
"Para a Causa do Povo a Luta Continua!"
"And that's all I'm going to say about that". Forrest Gump
"Damn, I wanted to see what happened next" (Epitaph)

gerontocrat

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Re: 2020 Sea ice area and extent data
« Reply #1954 on: December 06, 2020, 05:17:29 PM »
NSIDC Total EXTENT as at 05-Dec-2020 (5 day trailing average) 10,481,777 KM2         
         
Total EXTENT         
 10,481,777    km2      
-515,444    km2   <   2010's average.
-221,325    km2   <   2019
-921,860    km2   <   2000's average.
         
Total Change    106    k   gain
Peripheral Seas    55    k   gain
Central Seas___    51    k   gain
         
Peripheral Seas         
Okhotsk______    8    k   gain
Bering _______    6    k   gain
Hudson Bay___    11    k   gain
Baffin  Bay____    14    k   gain
St Lawrence___    8    k   gain
Greenland____   -6    k   loss
Barents ______    15    k   gain
         
Central Arctic  Ocean Seas         
Chukchi______    16    k   gain
Beaufort_____    -    k   loss
CAA_________    -    k   loss
East Siberian__    2    k   gain
Central Arctic_    13    k   gain
Laptev_______    -    k   loss
Kara_________    20    k   gain
         
NSIDC Sea ice EXTENT gain on this day 106 k, 16 k more than the 2010's average gain of 90k         
         
- 2020 EXTENT is at position #2 in the satellite record.         
- 2020 EXTENT is 515 k less than the 2010's average         
- 2020 EXTENT is 922 k less than the 2000's average         
- 2020 EXTENT is 228 k more than 2016         
- 2020 EXTENT is 221 k less than 2019          
- 2020 EXTENT is 598 k less than 2012         
___________________________________________________________________         
NSIDC Total AREA as at 05-Dec-2020 (5 day trailing average) 8,883,428 KM2         
         
Sea ice area gain on this day 76 k, 10 k more than the 2010's average gain of 66 k         
         
- 2020 area is at position #2 in the satellite record.         
- 2020 Area is 720 k less than the 2010's average         
- 2020 Area is 1,150 k less than the 2000's average         
- 2020 Area is 310 k more than 2016         
- 2020 Area is 500 k less than 2019          
- 2020 Area is 758 k less than 2012         
___________________________________________         
Note: Click an image for full-size         
"Para a Causa do Povo a Luta Continua!"
"And that's all I'm going to say about that". Forrest Gump
"Damn, I wanted to see what happened next" (Epitaph)

Juan C. García

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Re: 2020 Sea ice area and extent data
« Reply #1955 on: December 07, 2020, 04:30:43 AM »
[ADS NIPR VISHOP (JAXA)] Arctic Sea Ice Extent.

December 6th, 2020:
     10,390,121 km2, a century break increase of 150,488 km2.
     2020 is 2nd lowest on record.
     In the graph are today's 10 lowest years.
     Highlighted the 5 years with daily lowest minimum on September.

Source: https://ads.nipr.ac.jp/vishop/#/extent.
« Last Edit: December 07, 2020, 04:39:30 AM by Juan C. García »
Which is the best answer to Sep-2012 ASI lost (compared to 1979-2000)?
50% [NSIDC Extent] or
73% [PIOMAS Volume]

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

gerontocrat

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Re: 2020 Sea ice area and extent data
« Reply #1956 on: December 07, 2020, 11:59:33 AM »
JAXA ARCTIC SEA ICE EXTENT:  10,390,121 KM2 as at 06-Dec-2020

- Extent gain on this day 150k, 74 k more than the average gain on this day (of the last 10 years) of 76k,
- Extent gain from minimum on this date is 6,835 k, which is 383 k, 6% more than the 10 year average of 6,452 k.

- Extent is at position #2 in the satellite record

- Extent is  262 k LESS than 2019,
- Extent is  306 k MORE than 2016,
- Extent is  537 k LESS than 2012
- Extent is  509 k LESS than 2007
- Extent is  420 k LESS than the 2010's Average
_____________________________________________
On average 65.4% of extent gains  from minimum to maximum done, and 95 days to maximum

Projections. (Table JAXA-Arc1)

Average remaining extent gain (of the last 10 years) would produce a maximum in March 2021 of 13.80 million km2, 0.08 million km2 below the March 2017 record low maximum of 13.88 million km2.
_______________________________________________________________
So far in December the days of above average extent gains are more above the average than days of low extent gains are below the average. So overall extent gains are returning to above average - see 2nd attachment.
_______________________________________________________________
N.B. Click on image to enlarge
"Para a Causa do Povo a Luta Continua!"
"And that's all I'm going to say about that". Forrest Gump
"Damn, I wanted to see what happened next" (Epitaph)

gerontocrat

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Re: 2020 Sea ice area and extent data
« Reply #1957 on: December 07, 2020, 03:33:29 PM »
NSIDC Total EXTENT as at 06-Dec-2020 (5 day trailing average) 10,578,442 KM2         
         
Total EXTENT         
 10,578,442    km2      
-498,759    km2   <   2010's average.
-235,828    km2   <   2019
-903,683    km2   <   2000's average.
         
Total Change    97    k   gain
Peripheral Seas    37    k   gain
Central Seas___    60    k   gain
         
Peripheral Seas         
Okhotsk______    2    k   gain
Bering _______    6    k   gain
Hudson Bay___    11    k   gain
Baffin  Bay____    6    k   gain
St Lawrence___    5    k   gain
Greenland____   -7    k   loss
Barents ______    14    k   gain
         
Central Arctic  Ocean Seas         
Chukchi______    14    k   gain
Beaufort_____    -    k   loss
CAA_________    -    k   loss
East Siberian__    2    k   gain
Central Arctic_    11    k   gain
Laptev_______    -    k   loss
Kara_________    33    k   gain
         
NSIDC Sea ice EXTENT gain on this day 97 k, 17 k more than the 2010's average gain of 80k         
         
- 2020 EXTENT is at position #2 in the satellite record.         
- 2020 EXTENT is 499 k less than the 2010's average         
- 2020 EXTENT is 904 k less than the 2000's average         
- 2020 EXTENT is 266 k more than 2016         
- 2020 EXTENT is 236 k less than 2019          
- 2020 EXTENT is 621 k less than 2012         
___________________________________________________________________         
NSIDC Total AREA as at 06-Dec-2020 (5 day trailing average) 8,975,868 KM2         
         
Sea ice area gain on this day 92 k, 23 k more than the 2010's average gain of 69 k         
         
- 2020 area is at position #2 in the satellite record.         
- 2020 Area is 697 k less than the 2010's average         
- 2020 Area is 1,115 k less than the 2000's average         
- 2020 Area is 358 k more than 2016         
- 2020 Area is 506 k less than 2019          
- 2020 Area is 771 k less than 2012         
___________________________________________         
Note: Click an image for full-size         
"Para a Causa do Povo a Luta Continua!"
"And that's all I'm going to say about that". Forrest Gump
"Damn, I wanted to see what happened next" (Epitaph)

Juan C. García

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Re: 2020 Sea ice area and extent data
« Reply #1958 on: December 08, 2020, 04:32:45 AM »
[ADS NIPR VISHOP (JAXA)] Arctic Sea Ice Extent.

December 7th, 2020:
     10,528,194 km2, a century break increase of 138,073 km2.
     2020 is 2nd lowest on record.
     In the graph are today's 10 lowest years.
     Highlighted the 5 years with daily lowest minimum on September.

Source: https://ads.nipr.ac.jp/vishop/#/extent.
« Last Edit: December 08, 2020, 04:47:15 AM by Juan C. García »
Which is the best answer to Sep-2012 ASI lost (compared to 1979-2000)?
50% [NSIDC Extent] or
73% [PIOMAS Volume]

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

gerontocrat

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Re: 2020 Sea ice area and extent data
« Reply #1959 on: December 08, 2020, 11:33:26 AM »
JAXA ARCTIC SEA ICE EXTENT:  10,528,194 KM2 as at 07-Dec-2020

- Extent gain on this day 138k, 66 k more than the average gain on this day (of the last 10 years) of 72k,
- Extent gain from minimum on this date is 6,973 k, which is 467 k, 7% more than the 10 year average of 6,506 k.

- Extent is at position #2 in the satellite record

- Extent is  277 k LESS than 2019,
- Extent is  351 k MORE than 2016,
- Extent is  477 k LESS than 2012
- Extent is  372 k LESS than 2007
- Extent is  354 k LESS than the 2010's Average
_____________________________________________
On average 66.1% of extent gains  from minimum to maximum done, and 94 days to maximum

Projections. (Table JAXA-Arc1)

Average remaining extent gain (of the last 10 years) would produce a maximum in March 2021 of 13.87 million km2, 0.01 million km2 below the March 2017 record low maximum of 13.88 million km2.
_______________________________________________________________
N.B. Click on image to enlarge
"Para a Causa do Povo a Luta Continua!"
"And that's all I'm going to say about that". Forrest Gump
"Damn, I wanted to see what happened next" (Epitaph)

gerontocrat

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Re: 2020 Sea ice area and extent data
« Reply #1960 on: December 08, 2020, 02:24:09 PM »
NSIDC Total EXTENT as at 07-Dec-2020 (5 day trailing average) 10,666,785 KM2         
         
Total EXTENT         
 10,666,785    km2      
-485,935    km2   <   2010's average.
-288,181    km2   <   2019
-895,621    km2   <   2000's average.
         
Total Change    88    k   gain
Peripheral Seas    32    k   gain
Central Seas___    57    k   gain
         
Peripheral Seas         
Okhotsk______    5    k   gain
Bering _______    9    k   gain
Hudson Bay___    11    k   gain
Baffin  Bay____    0    k   gain
St Lawrence___   -1    k   loss
Greenland____   -6    k   loss
Barents ______    14    k   gain
         
Central Arctic  Ocean Seas         
Chukchi______    15    k   gain
Beaufort_____    -    k   loss
CAA_________    -    k   loss
East Siberian__    2    k   gain
Central Arctic_    4    k   gain
Laptev_______    -    k   loss
Kara_________    36    k   gain
         
NSIDC Sea ice EXTENT gain on this day 88 k, 12 k more than the 2010's average gain of 76k         
         
- 2020 EXTENT is at position #2 in the satellite record.         
- 2020 EXTENT is 486 k less than the 2010's average         
- 2020 EXTENT is 896 k less than the 2000's average         
- 2020 EXTENT is 305 k more than 2016         
- 2020 EXTENT is 288 k less than 2019          
- 2020 EXTENT is 633 k less than 2012         
___________________________________________________________________         
NSIDC Total AREA as at 07-Dec-2020 (5 day trailing average) 9,085,550 KM2         
         
Sea ice area gain on this day 110 k, 37 k more than the 2010's average gain of 73 k         
         
- 2020 area is at position #2 in the satellite record.         
- 2020 Area is 660 k less than the 2010's average         
- 2020 Area is 1,068 k less than the 2000's average         
- 2020 Area is 424 k more than 2016         
- 2020 Area is 517 k less than 2019          
- 2020 Area is 766 k less than 2012         
___________________________________________         
Note: Click an image for full-size         
"Para a Causa do Povo a Luta Continua!"
"And that's all I'm going to say about that". Forrest Gump
"Damn, I wanted to see what happened next" (Epitaph)

Juan C. García

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Re: 2020 Sea ice area and extent data
« Reply #1961 on: December 09, 2020, 04:58:32 AM »
[ADS NIPR VISHOP (JAXA)] Arctic Sea Ice Extent.

December 8th, 2020:
     10,610,647 km2, an increase of 82,453 km2.
     2020 is 2nd lowest on record.
     In the graph are today's 11 lowest years.
     Highlighted the 5 years with daily lowest minimum on September.

Source: https://ads.nipr.ac.jp/vishop/#/extent.
« Last Edit: December 09, 2020, 05:05:53 AM by Juan C. García »
Which is the best answer to Sep-2012 ASI lost (compared to 1979-2000)?
50% [NSIDC Extent] or
73% [PIOMAS Volume]

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

gerontocrat

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Re: 2020 Sea ice area and extent data
« Reply #1962 on: December 09, 2020, 11:20:56 AM »
JAXA ARCTIC SEA ICE EXTENT:  10,610,647 KM2 as at 08-Dec-2020

- Extent gain on this day 82k, 9 k more than the average gain on this day (of the last 10 years) of 73k,
- Extent gain from minimum on this date is 7,056 k, which is 493 k, 8% more than the 10 year average of 6,563 k.

- Extent is at position #2 in the satellite record

- Extent is  359 k LESS than 2019,
- Extent is  361 k MORE than 2016,
- Extent is  473 k LESS than 2012
- Extent is  361 k LESS than 2007
- Extent is  344 k LESS than the 2010's Average
_____________________________________________
On average 66.8% of extent gains  from minimum to maximum done, and 93 days to maximum

Projections. (Table JAXA-Arc1)

Average remaining extent gain (of the last 10 years) would produce a maximum in March 2021 of 13.88 million km2, equal to the March 2017 record low maximum of 13.88 million km2.
_______________________________________________________________
N.B. Click on image to enlarge
"Para a Causa do Povo a Luta Continua!"
"And that's all I'm going to say about that". Forrest Gump
"Damn, I wanted to see what happened next" (Epitaph)

gerontocrat

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Re: 2020 Sea ice area and extent data
« Reply #1963 on: December 09, 2020, 03:14:15 PM »
NSIDC Total EXTENT as at 08-Dec-2020 (5 day trailing average) 10,758,284 KM2         
         
Total EXTENT         
 10,758,284    km2      
-471,260    km2   <   2010's average.
-340,397    km2   <   2019
-881,547    km2   <   2000's average.
         
Total Change    91    k   gain
Peripheral Seas    42    k   gain
Central Seas___    50    k   gain
         
Peripheral Seas         
Okhotsk______    2    k   gain
Bering _______    11    k   gain
Hudson Bay___    17    k   gain
Baffin  Bay____   -2    k   loss
St Lawrence___   -0    k   loss
Greenland____    8    k   gain
Barents ______    6    k   gain
         
Central Arctic  Ocean Seas         
Chukchi______    14    k   gain
Beaufort_____    -    k   loss
CAA_________    -    k   loss
East Siberian__    1    k   gain
Central Arctic_    1    k   gain
Laptev_______    -    k   loss
Kara_________    33    k   gain
         
NSIDC Sea ice EXTENT gain on this day 91 k, 14 k more than the 2010's average gain of 77k         
         
- 2020 EXTENT is at position #2 in the satellite record.         
- 2020 EXTENT is 471 k less than the 2010's average         
- 2020 EXTENT is 882 k less than the 2000's average         
- 2020 EXTENT is 335 k more than 2016         
- 2020 EXTENT is 340 k less than 2019          
- 2020 EXTENT is 637 k less than 2012         
___________________________________________________________________         
NSIDC Total AREA as at 08-Dec-2020 (5 day trailing average) 9,217,817 KM2         
         
Sea ice area gain on this day 132 k, 56 k more than the 2010's average gain of 76 k         
         
- 2020 area is at position #2 in the satellite record.         
- 2020 Area is 603 k less than the 2010's average         
- 2020 Area is 1,000 k less than the 2000's average         
- 2020 Area is 524 k more than 2016         
- 2020 Area is 514 k less than 2019          
- 2020 Area is 735 k less than 2012         
___________________________________________         
Note: Click an image for full-size         
"Para a Causa do Povo a Luta Continua!"
"And that's all I'm going to say about that". Forrest Gump
"Damn, I wanted to see what happened next" (Epitaph)

Juan C. García

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Re: 2020 Sea ice area and extent data
« Reply #1964 on: December 10, 2020, 04:32:55 AM »
[ADS NIPR VISHOP (JAXA)] Arctic Sea Ice Extent.

December 9th, 2020:
     10,644,699 km2, an increase of 34,052 km2.
     2020 is 2nd lowest on record.
     In the graph are today's 10 lowest years.
     Highlighted the 5 years with daily lowest minimum on September.

Source: https://ads.nipr.ac.jp/vishop/#/extent.
« Last Edit: December 10, 2020, 04:44:32 AM by Juan C. García »
Which is the best answer to Sep-2012 ASI lost (compared to 1979-2000)?
50% [NSIDC Extent] or
73% [PIOMAS Volume]

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

gerontocrat

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Re: 2020 Sea ice area and extent data
« Reply #1965 on: December 10, 2020, 10:06:09 AM »
JAXA ARCTIC SEA ICE EXTENT:  10,644,699 KM2 as at 09-Dec-2020

- Extent gain on this day 34k, 54 k less than the average gain on this day (of the last 10 years) of 88k,
- Extent gain from minimum on this date is 7,090 k, which is 437 k, 7% more than the 10 year average of 6,652 k.

- Extent is at position #2 in the satellite record

- Extent is  408 k LESS than 2019,
- Extent is  279 k MORE than 2016,
- Extent is  482 k LESS than 2012
- Extent is  445 k LESS than 2007
- Extent is  398 k LESS than the 2010's Average
_____________________________________________
On average 67.7% of extent gains  from minimum to maximum done, and 92 days to maximum

Projections. (Table JAXA-Arc1)

Average remaining extent gain (of the last 10 years) would produce a maximum in March 2021 of 13.82 million km2, 0.06 million km2 below the March 2017 record low maximum of 13.88 million km2.
_______________________________________________________________
N.B. Click on image to enlarge
"Para a Causa do Povo a Luta Continua!"
"And that's all I'm going to say about that". Forrest Gump
"Damn, I wanted to see what happened next" (Epitaph)

gerontocrat

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Re: 2020 Sea ice area and extent data
« Reply #1966 on: December 10, 2020, 03:15:40 PM »
NSIDC Total EXTENT as at 09-Dec-2020 (5 day trailing average) 10,848,593 KM2         
         
Total EXTENT         
 10,848,593    km2      
-461,800    km2   <   2010's average.
-374,583    km2   <   2019
-868,287    km2   <   2000's average.
         
Total Change    90    k   gain
Peripheral Seas    53    k   gain
Central Seas___    37    k   gain
         
Peripheral Seas         
Okhotsk______    3    k   gain
Bering _______    9    k   gain
Hudson Bay___    16    k   gain
Baffin  Bay____    7    k   gain
St Lawrence___    1    k   gain
Greenland____    12    k   gain
Barents ______    5    k   gain
         
Central Arctic  Ocean Seas         
Chukchi______    15    k   gain
Beaufort_____    -    k   loss
CAA_________    -    k   loss
East Siberian__    1    k   gain
Central Arctic_    0    k   gain
Laptev_______    -    k   loss
Kara_________    21    k   gain
         
NSIDC Sea ice EXTENT gain on this day 90 k, 9 k more than the 2010's average gain of 81k         
         
- 2020 EXTENT is at position #2 in the satellite record.         
- 2020 EXTENT is 462 k less than the 2010's average         
- 2020 EXTENT is 868 k less than the 2000's average         
- 2020 EXTENT is 338 k more than 2016         
- 2020 EXTENT is 375 k less than 2019          
- 2020 EXTENT is 651 k less than 2012         
___________________________________________________________________         
NSIDC Total AREA as at 09-Dec-2020 (5 day trailing average) 9,356,004 KM2         
         
Sea ice area gain on this day 138 k, 57 k more than the 2010's average gain of 81 k         
         
- 2020 area is at position #2 in the satellite record.         
- 2020 Area is 547 k less than the 2010's average         
- 2020 Area is 930 k less than the 2000's average         
- 2020 Area is 602 k more than 2016         
- 2020 Area is 496 k less than 2019          
- 2020 Area is 686 k less than 2012         
___________________________________________         
Note: Click an image for full-size         
"Para a Causa do Povo a Luta Continua!"
"And that's all I'm going to say about that". Forrest Gump
"Damn, I wanted to see what happened next" (Epitaph)

Juan C. García

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Re: 2020 Sea ice area and extent data
« Reply #1967 on: December 11, 2020, 04:34:51 AM »
[ADS NIPR VISHOP (JAXA)] Arctic Sea Ice Extent.

December 10th, 2020:
     10,738,059 km2, an increase of 93,360 km2.
     2020 is 2nd lowest on record.
     In the graph are today's 10 lowest years.
     Highlighted the 5 years with daily lowest minimum on September.

Source: https://ads.nipr.ac.jp/vishop/#/extent.
« Last Edit: December 11, 2020, 04:44:02 AM by Juan C. García »
Which is the best answer to Sep-2012 ASI lost (compared to 1979-2000)?
50% [NSIDC Extent] or
73% [PIOMAS Volume]

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

gerontocrat

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Re: 2020 Sea ice area and extent data
« Reply #1968 on: December 11, 2020, 09:16:37 AM »
JAXA ARCTIC SEA ICE EXTENT:  10,738,059 KM2 as at 10-Dec-2020

- Extent gain on this day 93k, 14 k less than the average gain on this day (of the last 10 years) of 107k,
- Extent gain from minimum on this date is 7,183 k, which is 421 k, 6% more than the 10 year average of 6,762 k.

- Extent is at position #2 in the satellite record

- Extent is  358 k LESS than 2019,
- Extent is  165 k MORE than 2016,
- Extent is  477 k LESS than 2012
- Extent is  459 k LESS than 2007
- Extent is  412 k LESS than the 2010's Average
_____________________________________________
On average 68.8% of extent gains  from minimum to maximum done, and 91 days to maximum

Projections. (Table JAXA-Arc1)

Average remaining extent gain (of the last 10 years) would produce a maximum in March 2021 of 13.81 million km2, 0.07 million km2 below the March 2017 record low maximum of 13.88 million km2.
_______________________________________________________________
N.B. Click on image to enlarge
"Para a Causa do Povo a Luta Continua!"
"And that's all I'm going to say about that". Forrest Gump
"Damn, I wanted to see what happened next" (Epitaph)

gerontocrat

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Re: 2020 Sea ice area and extent data
« Reply #1969 on: December 11, 2020, 02:55:11 PM »
NSIDC Total EXTENT as at 10-Dec-2020 (5 day trailing average) 10,942,980 KM2         
         
Total EXTENT         
 10,942,980    km2      
-454,726    km2   <   2010's average.
-415,863    km2   <   2019
-849,597    km2   <   2000's average.
         
Total Change    94    k   gain
Peripheral Seas    56    k   gain
Central Seas___    38    k   gain
         
Peripheral Seas         
Okhotsk______    3    k   gain
Bering _______    10    k   gain
Hudson Bay___    18    k   gain
Baffin  Bay____    8    k   gain
St Lawrence___   -6    k   loss
Greenland____    25    k   gain
Barents ______   -2    k   loss
         
Central Arctic  Ocean Seas         
Chukchi______    21    k   gain
Beaufort_____    -    k   loss
CAA_________    -    k   loss
East Siberian__    1    k   gain
Central Arctic_   -2    k   loss
Laptev_______    -    k   loss
Kara_________    18    k   gain
         
NSIDC Sea ice EXTENT gain on this day 94 k, 7 k more than the 2010's average gain of 87k         
         
- 2020 EXTENT is at position #2 in the satellite record.         
- 2020 EXTENT is 455 k less than the 2010's average         
- 2020 EXTENT is 850 k less than the 2000's average         
- 2020 EXTENT is 301 k more than 2016         
- 2020 EXTENT is 416 k less than 2019          
- 2020 EXTENT is 639 k less than 2012         
___________________________________________________________________         
NSIDC Total AREA as at 10-Dec-2020 (5 day trailing average) 9,478,685 KM2         
         
Sea ice area gain on this day 123 k, 32 k more than the 2010's average gain of 91 k         
         
- 2020 area is at position #2 in the satellite record.         
- 2020 Area is 515 k less than the 2010's average         
- 2020 Area is 879 k less than the 2000's average         
- 2020 Area is 616 k more than 2016         
- 2020 Area is 480 k less than 2019          
- 2020 Area is 642 k less than 2012         
___________________________________________         
Note: Click an image for full-size         
"Para a Causa do Povo a Luta Continua!"
"And that's all I'm going to say about that". Forrest Gump
"Damn, I wanted to see what happened next" (Epitaph)

Juan C. García

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Re: 2020 Sea ice area and extent data
« Reply #1970 on: December 12, 2020, 04:41:11 AM »
[ADS NIPR VISHOP (JAXA)] Arctic Sea Ice Extent.

December 11th, 2020:
     10,837,674 km2, an almost century break increase of 99,615 km2.
     2020 is 2nd lowest on record.
     In the graph are today's 10 lowest years.
     Highlighted the 5 years with daily lowest minimum on September.

Source: https://ads.nipr.ac.jp/vishop/#/extent.
« Last Edit: December 12, 2020, 04:56:49 AM by Juan C. García »
Which is the best answer to Sep-2012 ASI lost (compared to 1979-2000)?
50% [NSIDC Extent] or
73% [PIOMAS Volume]

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

gerontocrat

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Re: 2020 Sea ice area and extent data
« Reply #1971 on: December 12, 2020, 12:43:52 PM »
JAXA ARCTIC SEA ICE EXTENT:  10,837,674 KM2 as at 11-Dec-2020

- Extent gain on this day 100k, 4 k less than the average gain on this day (of the last 10 years) of 104k,
- Extent gain from minimum on this date is 7,283 k, which is 423 k, 6% more than the 10 year average of 6,860 k.

- Extent is at position #2 in the satellite record

- Extent is  357 k LESS than 2019,
- Extent is  86 k MORE than 2016,
- Extent is  436 k LESS than 2012
- Extent is  435 k LESS than 2007
- Extent is  417 k LESS than the 2010's Average
_____________________________________________
On average 69.8% of extent gains  from minimum to maximum done, and 90 days to maximum

Projections. (Table JAXA-Arc1)

Average remaining extent gain (of the last 10 years) would produce a maximum in March 2021 of 13.80 million km2, 0.08 million km2 below the March 2017 record low maximum of 13.88 million km2.
_______________________________________________________________
N.B. Click on image to enlarge
"Para a Causa do Povo a Luta Continua!"
"And that's all I'm going to say about that". Forrest Gump
"Damn, I wanted to see what happened next" (Epitaph)

gerontocrat

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Re: 2020 Sea ice area and extent data
« Reply #1972 on: December 12, 2020, 02:40:58 PM »
NSIDC Total EXTENT as at 11-Dec-2020 (5 day trailing average) 11,017,668 KM2         
         
Total EXTENT         
 11,017,668    km2      
-467,383    km2   <   2010's average.
-441,245    km2   <   2019
-851,996    km2   <   2000's average.
         
Total Change    75    k   gain
Peripheral Seas    40    k   gain
Central Seas___    35    k   gain
         
Peripheral Seas         
Okhotsk______   -0    k   loss
Bering _______    14    k   gain
Hudson Bay___    20    k   gain
Baffin  Bay____    7    k   gain
St Lawrence___   -14    k   loss
Greenland____    15    k   gain
Barents ______   -3    k   loss
         
Central Arctic  Ocean Seas         
Chukchi______    27    k   gain
Beaufort_____    -    k   loss
CAA_________    -    k   loss
East Siberian__    1    k   gain
Central Arctic_   -0    k   loss
Laptev_______    -    k   loss
Kara_________    7    k   gain
         
NSIDC Sea ice EXTENT gain on this day 75 k, 12 k less than the 2010's average gain of 87k         
         
- 2020 EXTENT is at position #2 in the satellite record.         
- 2020 EXTENT is 467 k less than the 2010's average         
- 2020 EXTENT is 852 k less than the 2000's average         
- 2020 EXTENT is 232 k more than 2016         
- 2020 EXTENT is 441 k less than 2019          
- 2020 EXTENT is 619 k less than 2012         
___________________________________________________________________         
NSIDC Total AREA as at 11-Dec-2020 (5 day trailing average) 9,574,043 KM2         
         
Sea ice area gain on this day 95 k, 6 k more than the 2010's average gain of 89 k         
         
- 2020 area is at position #2 in the satellite record.         
- 2020 Area is 509 k less than the 2010's average         
- 2020 Area is 855 k less than the 2000's average         
- 2020 Area is 601 k more than 2016         
- 2020 Area is 460 k less than 2019          
- 2020 Area is 626 k less than 2012         
___________________________________________         
Note: Click an image for full-size         
"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: 2020 Sea ice area and extent data
« Reply #1973 on: December 12, 2020, 02:45:39 PM »
NSIDC Data

Here are the extent graphs for the High Arctic & the Peripheral seas.
"Para a Causa do Povo a Luta Continua!"
"And that's all I'm going to say about that". Forrest Gump
"Damn, I wanted to see what happened next" (Epitaph)

Juan C. García

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Re: 2020 Sea ice area and extent data
« Reply #1974 on: December 13, 2020, 04:40:04 AM »
[ADS NIPR VISHOP (JAXA)] Arctic Sea Ice Extent.

December 12th, 2020:
     10,877,224 km2, an increase of 39,550 km2.
     2020 is 2nd lowest on record.
     In the graph are today's 10 lowest years.
     Highlighted the 5 years with daily lowest minimum on September.

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

P.S. Today 2020 is at just 24.2K km2 of becoming the lowest on record. Will 2020 be the lowest on record again?
« Last Edit: December 13, 2020, 04:51:19 AM by Juan C. García »
Which is the best answer to Sep-2012 ASI lost (compared to 1979-2000)?
50% [NSIDC Extent] or
73% [PIOMAS Volume]

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

gerontocrat

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Re: 2020 Sea ice area and extent data
« Reply #1975 on: December 13, 2020, 10:28:31 AM »
JAXA ARCTIC SEA ICE EXTENT:  10,877,224 KM2 as at 12-Dec-2020

- Extent gain on this day 40k, 31 k less than the average gain on this day (of the last 10 years) of 71k,
- Extent gain from minimum on this date is 7,322 k, which is 392 k, 6% more than the 10 year average of 6,930 k.

- Extent is at position #2 in the satellite record

- Extent is  375 k LESS than 2019,
- Extent is  24 k MORE than 2016,
- Extent is  414 k LESS than 2012
- Extent is  466 k LESS than 2007
- Extent is  448 k LESS than the 2010's Average
_____________________________________________
On average 70.5% of extent gains  from minimum to maximum done, and 89 days to maximum

Projections. (Table JAXA-Arc1)

Average remaining extent gain (of the last 10 years) would produce a maximum in March 2021 of 13.77 million km2, 0.11 million km2 below the March 2017 record low maximum of 13.88 million km2.
_______________________________________________________________
N.B. Click on image to enlarge
"Para a Causa do Povo a Luta Continua!"
"And that's all I'm going to say about that". Forrest Gump
"Damn, I wanted to see what happened next" (Epitaph)

gerontocrat

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Re: 2020 Sea ice area and extent data
« Reply #1976 on: December 13, 2020, 02:48:08 PM »
NSIDC Total EXTENT as at 12-Dec-2020 (5 day trailing average) 11,082,246 KM2         
         
Total EXTENT         
 11,082,246    km2      
-490,292    km2   <   2010's average.
-445,614    km2   <   2019
-866,506    km2   <   2000's average.
         
Total Change    64    k   gain
Peripheral Seas    45    k   gain
Central Seas___    20    k   gain
         
Peripheral Seas         
Okhotsk______   -2    k   loss
Bering _______    14    k   gain
Hudson Bay___    23    k   gain
Baffin  Bay____    4    k   gain
St Lawrence___   -6    k   loss
Greenland____    8    k   gain
Barents ______    5    k   gain
         
Central Arctic  Ocean Seas         
Chukchi______    27    k   gain
Beaufort_____    -    k   loss
CAA_________    -    k   loss
East Siberian__    0    k   gain
Central Arctic_   -1    k   loss
Laptev_______    -    k   loss
Kara_________   -6    k   loss
         
NSIDC Sea ice EXTENT gain on this day 64 k, 23 k less than the 2010's average gain of 87k         
         
- 2020 EXTENT is at position #2 in the satellite record.         
- 2020 EXTENT is 490 k less than the 2010's average         
- 2020 EXTENT is 867 k less than the 2000's average         
- 2020 EXTENT is 166 k more than 2016         
- 2020 EXTENT is 446 k less than 2019          
- 2020 EXTENT is 612 k less than 2012         
___________________________________________________________________         
NSIDC Total AREA as at 12-Dec-2020 (5 day trailing average) 9,644,329 KM2         
         
Sea ice area gain on this day 70 k, 13 k less than the 2010's average gain of 83 k         
         
- 2020 area is at position #2 in the satellite record.         
- 2020 Area is 522 k less than the 2010's average         
- 2020 Area is 856 k less than the 2000's average         
- 2020 Area is 563 k more than 2016         
- 2020 Area is 450 k less than 2019          
- 2020 Area is 626 k less than 2012         
___________________________________________         
Note: Click an image for full-size         
"Para a Causa do Povo a Luta Continua!"
"And that's all I'm going to say about that". Forrest Gump
"Damn, I wanted to see what happened next" (Epitaph)

Juan C. García

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Re: 2020 Sea ice area and extent data
« Reply #1977 on: December 14, 2020, 04:34:49 AM »
[ADS NIPR VISHOP (JAXA)] Arctic Sea Ice Extent.

December 13th, 2020:
     10,995,046 km2, a century break increase of 117,822 km2.
     2020 is 2nd lowest on record.
     In the graph are today's 10 lowest years.
     Highlighted the 5 years with daily lowest minimum on September.

Source: https://ads.nipr.ac.jp/vishop/#/extent.
« Last Edit: December 14, 2020, 04:46:01 AM by Juan C. García »
Which is the best answer to Sep-2012 ASI lost (compared to 1979-2000)?
50% [NSIDC Extent] or
73% [PIOMAS Volume]

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

gerontocrat

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Re: 2020 Sea ice area and extent data
« Reply #1978 on: December 14, 2020, 11:16:52 AM »
JAXA ARCTIC SEA ICE EXTENT:  10,995,046 KM2 as at 13-Dec-2020

- Extent gain on this day 118k, 59 k more than the average gain on this day (of the last 10 years) of 59k,
- Extent gain from minimum on this date is 7,440 k, which is 439 k, 6% more than the 10 year average of 7,001 k.

- Extent is at position #2 in the satellite record

- Extent is  323 k LESS than 2019,
- Extent is  99 k MORE than 2016,
- Extent is  323 k LESS than 2012
- Extent is  451 k LESS than 2007
- Extent is  390 k LESS than the 2010's Average
_____________________________________________
On average 71.2% of extent gains  from minimum to maximum done, and 88 days to maximum

Projections. (Table JAXA-Arc1)

Average remaining extent gain (of the last 10 years) would produce a maximum in March 2021 of 13.83 million km2, 0.05 million km2 below the March 2017 record low maximum of 13.88 million km2.
_______________________________________________________________
N.B. Click on image to enlarge
"Para a Causa do Povo a Luta Continua!"
"And that's all I'm going to say about that". Forrest Gump
"Damn, I wanted to see what happened next" (Epitaph)

gerontocrat

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Re: 2020 Sea ice area and extent data
« Reply #1979 on: December 14, 2020, 02:40:28 PM »
NSIDC Total EXTENT as at 13-Dec-2020 (5 day trailing average) 11,181,448 KM2         
         
Total EXTENT         
 11,181,448    km2      
-476,510    km2   <   2010's average.
-403,539    km2   <   2019
-841,709    km2   <   2000's average.
         
Total Change    99    k   gain
Peripheral Seas    82    k   gain
Central Seas___    18    k   gain
         
Peripheral Seas         
Okhotsk______    5    k   gain
Bering _______    8    k   gain
Hudson Bay___    35    k   gain
Baffin  Bay____    14    k   gain
St Lawrence___    8    k   gain
Greenland____    1    k   gain
Barents ______    12    k   gain
         
Central Arctic  Ocean Seas         
Chukchi______    22    k   gain
Beaufort_____    -    k   loss
CAA_________    -    k   loss
East Siberian__    -    k   loss
Central Arctic_    2    k   gain
Laptev_______    -    k   loss
Kara_________   -7    k   loss
         
NSIDC Sea ice EXTENT gain on this day 99 k, 14 k more than the 2010's average gain of 85k         
         
- 2020 EXTENT is at position #2 in the satellite record.         
- 2020 EXTENT is 477 k less than the 2010's average         
- 2020 EXTENT is 842 k less than the 2000's average         
- 2020 EXTENT is 129 k more than 2016         
- 2020 EXTENT is 404 k less than 2019          
- 2020 EXTENT is 543 k less than 2012         
___________________________________________________________________         
NSIDC Total AREA as at 13-Dec-2020 (5 day trailing average) 9,712,832 KM2         
         
Sea ice area gain on this day 68 k, 10 k less than the 2010's average gain of 78 k         
         
- 2020 area is at position #2 in the satellite record.         
- 2020 Area is 531 k less than the 2010's average         
- 2020 Area is 856 k less than the 2000's average         
- 2020 Area is 498 k more than 2016         
- 2020 Area is 446 k less than 2019          
- 2020 Area is 595 k less than 2012         
___________________________________________         
Note: Click an image for full-size         
"Para a Causa do Povo a Luta Continua!"
"And that's all I'm going to say about that". Forrest Gump
"Damn, I wanted to see what happened next" (Epitaph)

Juan C. García

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Re: 2020 Sea ice area and extent data
« Reply #1980 on: December 15, 2020, 04:36:15 AM »
[ADS NIPR VISHOP (JAXA)] Arctic Sea Ice Extent.

December 14th, 2020:
     11,153,070 km2, a century break increase of 158,024 km2.
     2020 is 2nd lowest on record.
     In the graph are today's 10 lowest years.
     Highlighted the 5 years with daily lowest minimum on September.

Source: https://ads.nipr.ac.jp/vishop/#/extent.
« Last Edit: December 15, 2020, 04:46:16 AM by Juan C. García »
Which is the best answer to Sep-2012 ASI lost (compared to 1979-2000)?
50% [NSIDC Extent] or
73% [PIOMAS Volume]

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

gerontocrat

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Re: 2020 Sea ice area and extent data
« Reply #1981 on: December 15, 2020, 11:01:12 AM »
JAXA ARCTIC SEA ICE EXTENT:  11,153,070 KM2 as at 14-Dec-2020

- Extent gain on this day 158k, 87 k more than the average gain on this day (of the last 10 years) of 71k,
- Extent gain from minimum on this date is 7,598 k, which is 523 k, 7% more than the 10 year average of 7,075 k.

- Extent is at position #2 in the satellite record

- Extent is  265 k LESS than 2019,
- Extent is  143 k MORE than 2016,
- Extent is  193 k LESS than 2012
- Extent is  357 k LESS than 2007
- Extent is  303 k LESS than the 2010's Average
_____________________________________________
On average 71.9% of extent gains  from minimum to maximum done, and 87 days to maximum

Projections. (Table JAXA-Arc1)

Average remaining extent gain (of the last 10 years) would produce a maximum in March 2021 of 13.92 million km2, 0.04 million km2 above the March 2017 record low maximum of 13.88 million km2.
_______________________________________________________________
N.B. Click on image to enlarge
"Para a Causa do Povo a Luta Continua!"
"And that's all I'm going to say about that". Forrest Gump
"Damn, I wanted to see what happened next" (Epitaph)

gerontocrat

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Re: 2020 Sea ice area and extent data
« Reply #1982 on: December 15, 2020, 02:32:39 PM »
NSIDC Total EXTENT as at 14-Dec-2020 (5 day trailing average) 11,309,327 KM2            
            
Total EXTENT            
 11,309,327    km2         
-428,868    km2   <   2010's average.   
-345,838    km2   <   2019   
-783,877    km2   <   2000's average.   
            
Total Change    128    k   gain   gain
Peripheral Seas    94    k   gain   gain
Central Seas___    34    k   gain   gain
            
Peripheral Seas            
Okhotsk______    15    k   gain   gain
Bering _______    9    k   gain   gain
Hudson Bay___    44    k   gain   gain
Baffin  Bay____    10    k   gain   gain
St Lawrence___    1    k   gain   gain
Greenland____   -3    k   loss   gain
Barents ______    18    k   gain   gain
            
Central Arctic  Ocean Seas            
Chukchi______    22    k   gain   gain
Beaufort_____    -    k   loss   gain
CAA_________    -    k   loss   gain
East Siberian__   -1    k   loss   gain
Central Arctic_    4    k   gain   gain
Laptev_______    -    k   loss   gain
Kara_________    9    k   gain   gain
            128
NSIDC Sea ice EXTENT gain on this day 128 k, 48 k more than the 2010's average gain of 80k            
            more
- 2020 EXTENT is at position #2 in the satellite record.            
- 2020 EXTENT is 429 k less than the 2010's average            
- 2020 EXTENT is 784 k less than the 2000's average            
- 2020 EXTENT is 108 k more than 2016            
- 2020 EXTENT is 346 k less than 2019             
- 2020 EXTENT is 406 k less than 2012            
___________________________________________________________________            
NSIDC Total AREA as at 14-Dec-2020 (5 day trailing average) 9,784,264 KM2            
            
Sea ice area gain on this day 71 k, 1 k less than the 2010's average gain of 72 k            
            
- 2020 area is at position #2 in the satellite record.            
- 2020 Area is 532 k less than the 2010's average            
- 2020 Area is 854 k less than the 2000's average            
- 2020 Area is 435 k more than 2016            
- 2020 Area is 458 k less than 2019             
- 2020 Area is 543 k less than 2012            
___________________________________________            
Note: Click an image for full-size            
"Para a Causa do Povo a Luta Continua!"
"And that's all I'm going to say about that". Forrest Gump
"Damn, I wanted to see what happened next" (Epitaph)

Juan C. García

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Re: 2020 Sea ice area and extent data
« Reply #1983 on: December 16, 2020, 05:04:28 AM »
[ADS NIPR VISHOP (JAXA)] Arctic Sea Ice Extent.

December 15th, 2020:
     11,219,715 km2, an increase of 66,645 km2.
     2020 is 2nd lowest on record.
     In the graph are today's 10 lowest years.
     Highlighted the 5 years with daily lowest minimum on September.

Source: https://ads.nipr.ac.jp/vishop/#/extent.
« Last Edit: December 16, 2020, 05:15:05 AM by Juan C. García »
Which is the best answer to Sep-2012 ASI lost (compared to 1979-2000)?
50% [NSIDC Extent] or
73% [PIOMAS Volume]

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

gerontocrat

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Re: 2020 Sea ice area and extent data
« Reply #1984 on: December 16, 2020, 09:51:55 AM »
JAXA ARCTIC SEA ICE EXTENT:  11,219,715 KM2 as at 15-Dec-2020

- Extent gain on this day 67k, 9 k more than the average gain on this day (of the last 10 years) of 58k,
- Extent gain from minimum on this date is 7,665 k, which is 526 k, 7% more than the 10 year average of 7,139 k.

- Extent is at position #2 in the satellite record

- Extent is  263 k LESS than 2019,
- Extent is  127 k MORE than 2016,
- Extent is  205 k LESS than 2012
- Extent is  312 k LESS than 2007
- Extent is  294 k LESS than the 2010's Average
_____________________________________________
On average 72.5% of extent gains  from minimum to maximum done, and 86 days to maximum

Projections. (Table JAXA-Arc1)

Average remaining extent gain (of the last 10 years) would produce a maximum in March 2021 of 13.93 million km2, 0.05 million km2 above the March 2017 record low maximum of 13.88 million km2.
_______________________________________________________________
N.B. Click on image to enlarge
"Para a Causa do Povo a Luta Continua!"
"And that's all I'm going to say about that". Forrest Gump
"Damn, I wanted to see what happened next" (Epitaph)

gerontocrat

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Re: 2020 Sea ice area and extent data
« Reply #1985 on: December 16, 2020, 11:16:26 AM »
JAXA Data

I attach the December monthly average graph based on actual data to Dec 15th and assuming 10 year average sea ice extent gains to the end of the month.

The resulting extent of 11.11 million km2 would be 2nd lowest in the satellite record, 0.11 million km2 above the record low of Dec 16, and 0.31 million km2 less than Dec 19.
"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: 2020 Sea ice area and extent data
« Reply #1986 on: December 16, 2020, 03:22:42 PM »
NSIDC Total EXTENT as at 15-Dec-2020 (5 day trailing average) 11,434,699 KM2         
         
Total EXTENT         
 11,434,699    km2      
-374,577    km2   <   2010's average.
-290,633    km2   <   2019
-730,187    km2   <   2000's average.
         
Total Change    125    k   gain
Peripheral Seas    91    k   gain
Central Seas___    34    k   gain
         
Peripheral Seas         
Okhotsk______    26    k   gain
Bering _______    7    k   gain
Hudson Bay___    39    k   gain
Baffin  Bay____    10    k   gain
St Lawrence___    7    k   gain
Greenland____   -20    k   loss
Barents ______    22    k   gain
         
Central Arctic  Ocean Seas         
Chukchi______    18    k   gain
Beaufort_____    -    k   loss
CAA_________    -    k   loss
East Siberian__   -3    k   loss
Central Arctic_    5    k   gain
Laptev_______    -    k   loss
Kara_________    14    k   gain
         
NSIDC Sea ice EXTENT gain on this day 125 k, 54 k more than the 2010's average gain of 71k         
         
- 2020 EXTENT is at position #2 in the satellite record.         
- 2020 EXTENT is 375 k less than the 2010's average         
- 2020 EXTENT is 730 k less than the 2000's average         
- 2020 EXTENT is 131 k more than 2016         
- 2020 EXTENT is 291 k less than 2019          
- 2020 EXTENT is 294 k less than 2012         
___________________________________________________________________         
NSIDC Total AREA as at 15-Dec-2020 (5 day trailing average) 9,864,449 KM2         
         
Sea ice area gain on this day 80 k, 17 k more than the 2010's average gain of 63 k         
         
- 2020 area is at position #2 in the satellite record.         
- 2020 Area is 515 k less than the 2010's average         
- 2020 Area is 843 k less than the 2000's average         
- 2020 Area is 411 k more than 2016         
- 2020 Area is 475 k less than 2019          
- 2020 Area is 497 k less than 2012         
___________________________________________         
Note: Click an image for full-size         
"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)

Stephan

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Re: 2020 Sea ice area and extent data
« Reply #1987 on: December 16, 2020, 09:36:31 PM »
I added the monthly extent value for November 2020 into my long-term plot where I calculate the extent anomalies from 1979 up to now.
The average (1979-2020) November extent is now 10.45 M km². November 2020 had an average extent of 8.99 M km², which is 1.46 M km² less than that long-term average.
The rapid freeze-up in November reduced the anomaly we saw in October from the long-term linear trend line. The difference of the actual month from that trend line is -0.36 M km² (calculated from the linear trend line this October should have been at 9.36 M km²).
The slope of the long-term linear trend line has become not changed since October (-0.0560).

See attached graph. Click to enlarge.

In addition I present the volume anomaly graph (second graph, click to enlarge). It looks much smoother than the extent anomaly graph.
It is too late just to be concerned about Climate Change

Juan C. García

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Re: 2020 Sea ice area and extent data
« Reply #1988 on: December 17, 2020, 04:50:03 AM »
[ADS NIPR VISHOP (JAXA)] Arctic Sea Ice Extent.

December 16th, 2020:
     11,324,169 km2, a century break increase of 104,454 km2.
     2020 is 2nd lowest on record.
     In the graph are today's 10 lowest years.
     Highlighted the 5 years with daily lowest minimum on September.

Source: https://ads.nipr.ac.jp/vishop/#/extent.
« Last Edit: December 17, 2020, 04:59:42 AM by Juan C. García »
Which is the best answer to Sep-2012 ASI lost (compared to 1979-2000)?
50% [NSIDC Extent] or
73% [PIOMAS Volume]

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

gerontocrat

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Re: 2020 Sea ice area and extent data
« Reply #1989 on: December 17, 2020, 12:06:52 PM »
JAXA ARCTIC SEA ICE EXTENT:  11,324,169 KM2 as at 16-Dec-2020

- Extent gain on this day 104k, 59 k more than the average gain on this day (of the last 10 years) of 45k,
- Extent gain from minimum on this date is 7,769 k, which is 579 k, 8% more than the 10 year average of 7,191 k.

- Extent is at position #2 in the satellite record

- Extent is  209 k LESS than 2019,
- Extent is  114 k MORE than 2016,
- Extent is  136 k LESS than 2012
- Extent is  236 k LESS than 2007
- Extent is  235 k LESS than the 2010's Average
_____________________________________________
On average 73.0% of extent gains  from minimum to maximum done, and 85 days to maximum

Projections. (Table JAXA-Arc1)

Average remaining extent gain (of the last 10 years) would produce a maximum in March 2021 of 13.98 million km2, 0.11 million km2 above the March 2017 record low maximum of 13.88 million km2.
_______________________________________________________________
I was thinking about how low the maximum could be, and now start to think about how high the maximum could be.
_______________________________________________________________
N.B. Click on image to enlarge
"Para a Causa do Povo a Luta Continua!"
"And that's all I'm going to say about that". Forrest Gump
"Damn, I wanted to see what happened next" (Epitaph)

gerontocrat

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Re: 2020 Sea ice area and extent data
« Reply #1990 on: December 17, 2020, 02:36:02 PM »
NSIDC Total EXTENT as at 16-Dec-2020 (5 day trailing average) 11,568,144 KM2         
         
Total EXTENT         
 11,568,144    km2      
-299,530    km2   <   2010's average.
-242,703    km2   <   2019
-666,218    km2   <   2000's average.
         
Total Change    133    k   gain
Peripheral Seas    100    k   gain
Central Seas___    33    k   gain
         
Peripheral Seas         
Okhotsk______    23    k   gain
Bering _______   -1    k   loss
Hudson Bay___    38    k   gain
Baffin  Bay____    17    k   gain
St Lawrence___    6    k   gain
Greenland____   -9    k   loss
Barents ______    26    k   gain
         
Central Arctic  Ocean Seas         
Chukchi______    13    k   gain
Beaufort_____    -    k   loss
CAA_________    -    k   loss
East Siberian__   -4    k   loss
Central Arctic_    4    k   gain
Laptev_______    -    k   loss
Kara_________    20    k   gain
         
NSIDC Sea ice EXTENT gain on this day 133 k, 75 k more than the 2010's average gain of 58k         
         
- 2020 EXTENT is at position #2 in the satellite record.         
- 2020 EXTENT is 300 k less than the 2010's average         
- 2020 EXTENT is 666 k less than the 2000's average         
- 2020 EXTENT is 167 k more than 2016         
- 2020 EXTENT is 243 k less than 2019          
- 2020 EXTENT is 167 k less than 2012         
___________________________________________________________________         
NSIDC Total AREA as at 16-Dec-2020 (5 day trailing average) 9,953,804 KM2         
         
Sea ice area gain on this day 89 k, 35 k more than the 2010's average gain of 54 k         
         
- 2020 area is at position #2 in the satellite record.         
- 2020 Area is 480 k less than the 2010's average         
- 2020 Area is 822 k less than the 2000's average         
- 2020 Area is 404 k more than 2016         
- 2020 Area is 490 k less than 2019          
- 2020 Area is 424 k less than 2012      
______________________________________
Extent and area gains now consistently above average   
___________________________________________         
Note: Click an image for full-size         
"Para a Causa do Povo a Luta Continua!"
"And that's all I'm going to say about that". Forrest Gump
"Damn, I wanted to see what happened next" (Epitaph)

Juan C. García

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Re: 2020 Sea ice area and extent data
« Reply #1991 on: December 18, 2020, 04:42:35 AM »
[ADS NIPR VISHOP (JAXA)] Arctic Sea Ice Extent.

December 17th, 2020:
     11,417,977 km2, an increase of 93,808 km2.
     2020 is 2nd lowest on record.
     In the graph are today's 10 lowest years.
     Highlighted the 5 years with daily lowest minimum on September.

Source: https://ads.nipr.ac.jp/vishop/#/extent.
« Last Edit: December 18, 2020, 04:52:52 AM by Juan C. García »
Which is the best answer to Sep-2012 ASI lost (compared to 1979-2000)?
50% [NSIDC Extent] or
73% [PIOMAS Volume]

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

gerontocrat

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Re: 2020 Sea ice area and extent data
« Reply #1992 on: December 18, 2020, 10:48:44 AM »
JAXA ARCTIC SEA ICE EXTENT:  11,417,977 KM2 as at 17-Dec-2020

- Extent gain on this day 94k, 65 k more than the average gain on this day (of the last 10 years) of 29k,
- Extent gain from minimum on this date is 7,863 k, which is 630 k, 9% more than the 10 year average of 7,233 k.

- Extent is at position #2 in the satellite record

- Extent is  106 k LESS than 2019,
- Extent is  167 k MORE than 2016,
- Extent is  80 k LESS than 2012
- Extent is  209 k LESS than 2007
- Extent is  170 k LESS than the 2010's Average
_____________________________________________
On average 73.3% of extent gains  from minimum to maximum done, and 84 days to maximum

Projections. (Table JAXA-Arc1)

Average remaining extent gain (of the last 10 years) would produce a maximum in March 2021 of 14.05 million km2, 0.17 million km2 above the March 2017 record low maximum of 13.88 million km2.
_______________________________________________________________
N.B. Click on image to enlarge
"Para a Causa do Povo a Luta Continua!"
"And that's all I'm going to say about that". Forrest Gump
"Damn, I wanted to see what happened next" (Epitaph)

gerontocrat

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Re: 2020 Sea ice area and extent data
« Reply #1993 on: December 18, 2020, 02:17:33 PM »
NSIDC Total EXTENT as at 17-Dec-2020 (5 day trailing average) 11,701,418 KM2         
         
Total EXTENT         
 11,701,418    km2      
-218,354    km2   <   2010's average.
-174,854    km2   <   2019
-600,939    km2   <   2000's average.
         
Total Change    133    k   gain
Peripheral Seas    82    k   gain
Central Seas___    51    k   gain
         
Peripheral Seas         
Okhotsk______    26    k   gain
Bering _______   -0    k   loss
Hudson Bay___    31    k   gain
Baffin  Bay____    12    k   gain
St Lawrence___   -2    k   loss
Greenland____   -10    k   loss
Barents ______    26    k   gain
         
Central Arctic  Ocean Seas         
Chukchi______    12    k   gain
Beaufort_____    -    k   loss
CAA_________    -    k   loss
East Siberian__   -0    k   loss
Central Arctic_    6    k   gain
Laptev_______    -    k   loss
Kara_________    34    k   gain
         
NSIDC Sea ice EXTENT gain on this day 133 k, 81 k more than the 2010's average gain of 52k         
         
- 2020 EXTENT is at position #2 in the satellite record.         
- 2020 EXTENT is 218 k less than the 2010's average         
- 2020 EXTENT is 601 k less than the 2000's average         
- 2020 EXTENT is 206 k more than 2016         
- 2020 EXTENT is 175 k less than 2019          
- 2020 EXTENT is 67 k less than 2012         
___________________________________________________________________         
NSIDC Total AREA as at 17-Dec-2020 (5 day trailing average) 10,069,375 KM2         
         
Sea ice area gain on this day 116 k, 61 k more than the 2010's average gain of 55 k         
         
- 2020 area is at position #2 in the satellite record.         
- 2020 Area is 420 k less than the 2010's average         
- 2020 Area is 778 k less than the 2000's average         
- 2020 Area is 412 k more than 2016         
- 2020 Area is 471 k less than 2019          
- 2020 Area is 336 k less than 2012         
___________________________________________         
Note: Click an image for full-size         
"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: 2020 Sea ice area and extent data
« Reply #1994 on: December 18, 2020, 02:31:53 PM »
The strong clockwise winds assciated with that very large anticyclone squatting on top of the Arctic ocean has pushed ice westwards along the Siberian coast. As a result sea ice area in the East Siberian Sea is down by 83k in the last 7 days.

This, and the recent reduction in the very high Greenland Sea area and extent, are the only exceptions to the general rapid increase in extent and area.
"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)

Feeltheburn

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Re: 2020 Sea ice area and extent data
« Reply #1995 on: December 19, 2020, 04:46:50 AM »
First interesting news of the freezing season.

JAXA, December 18, 2020

Extent: 11,562444 km2
Gain of 144,467 km2

5th lowest in the satellite record. Could only last a day. Could move down to 6th.

2016:  11,295,762 km2
2017:  11,546,507 km2
2019:  11,553,665 km2
2010:  11,548,406 km2
2020:  11,562,444 km2
2018:  11,564,084 km2

<FTB, haven't seen you in a while, it seems tendency for cherrypicking has remained. Am approving this post on a one-time basis but will not tolerate on an ongoing basis. O>
« Last Edit: December 19, 2020, 10:07:51 AM by oren »
Feel The Burn!

Juan C. García

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Re: 2020 Sea ice area and extent data
« Reply #1996 on: December 19, 2020, 05:06:07 AM »
[ADS NIPR VISHOP (JAXA)] Arctic Sea Ice Extent.

December 18th, 2020:
     11,562,444 km2, a century break increase of 144,467 km2.
     2020 is now 5th lowest on record, almost even with the 2nd to 4th lowest.
     In the graph are today's 10 lowest years.
     Highlighted the 5 years with daily lowest minimum on September.

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

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

gerontocrat

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Re: 2020 Sea ice area and extent data
« Reply #1997 on: December 19, 2020, 10:45:15 AM »
JAXA ARCTIC SEA ICE EXTENT:  11,562,444 KM2 as at 18-Dec-2020

- Extent gain on this day 144k, 84 k more than the average gain on this day (of the last 10 years) of 60k,
- Extent gain from minimum on this date is 8,008 k, which is 715 k, 10% more than the 10 year average of 7,293 k.

- Extent is at position #5 in the satellite record

- Extent is  9 k MORE than 2019,
- Extent is  267 k MORE than 2016,
- Extent is  90 k LESS than 2012
- Extent is  161 k LESS than 2007
- Extent is  85 k LESS than the 2010's Average
_____________________________________________
On average 73.9% of extent gains  from minimum to maximum done, and 83 days to maximum

Projections. (Table JAXA-Arc1)

Average remaining extent gain (of the last 10 years) would produce a maximum in March 2021 of 14.13 million km2, 0.26 million km2 above the March 2017 record low maximum of 13.88 million km2.
_______________________________________________________________
6 days of above average extent gains and lo and behold, extent that was 2nd lowest becomes 5th lowest in the satellite record.
_______________________________________________________________
N.B. Click on image to enlarge
"Para a Causa do Povo a Luta Continua!"
"And that's all I'm going to say about that". Forrest Gump
"Damn, I wanted to see what happened next" (Epitaph)

gerontocrat

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Re: 2020 Sea ice area and extent data
« Reply #1998 on: December 19, 2020, 02:16:43 PM »
NSIDC Total EXTENT as at 18-Dec-2020 (5 day trailing average) 11,812,476 KM2         
         
Total EXTENT         
 11,812,476    km2      
-153,528    km2   <   2010's average.
-107,586    km2   <   2019
-563,157    km2   <   2000's average.
         
Total Change    111    k   gain
Peripheral Seas    58    k   gain
Central Seas___    53    k   gain
         
Peripheral Seas         
Okhotsk______    29    k   gain
Bering _______    6    k   gain
Hudson Bay___    12    k   gain
Baffin  Bay____    4    k   gain
St Lawrence___   -9    k   loss
Greenland____   -5    k   loss
Barents ______    21    k   gain
         
Central Arctic  Ocean Seas         
Chukchi______    13    k   gain
Beaufort_____    -    k   loss
CAA_________    -    k   loss
East Siberian__    -    k   loss
Central Arctic_    4    k   gain
Laptev_______    -    k   loss
Kara_________    36    k   gain
         
NSIDC Sea ice EXTENT gain on this day 111 k, 65 k more than the 2010's average gain of 46k         
         
- 2020 EXTENT is at position #3 in the satellite record.         
- 2020 EXTENT is 154 k less than the 2010's average         
- 2020 EXTENT is 563 k less than the 2000's average         
- 2020 EXTENT is 233 k more than 2016         
- 2020 EXTENT is 108 k less than 2019          
- 2020 EXTENT is 37 k less than 2012         
___________________________________________________________________         
NSIDC Total AREA as at 18-Dec-2020 (5 day trailing average) 10,190,772 KM2         
         
Sea ice area gain on this day 121 k, 65 k more than the 2010's average gain of 56 k         
         
- 2020 area is at position #2 in the satellite record.         
- 2020 Area is 354 k less than the 2010's average         
- 2020 Area is 733 k less than the 2000's average         
- 2020 Area is 443 k more than 2016         
- 2020 Area is 425 k less than 2019          
- 2020 Area is 281 k less than 2012         
___________________________________________         
Note: Click an image for full-size         
"Para a Causa do Povo a Luta Continua!"
"And that's all I'm going to say about that". Forrest Gump
"Damn, I wanted to see what happened next" (Epitaph)

Juan C. García

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Re: 2020 Sea ice area and extent data
« Reply #1999 on: December 20, 2020, 05:39:38 AM »
[ADS NIPR VISHOP (JAXA)] Arctic Sea Ice Extent.

December 19th, 2020:
     11,672,440 km2, a century break increase of 109,996 km2.
     2020 is now 6th lowest on record.
     In the graph are today's 10 lowest years.
     Highlighted the 5 years with daily lowest minimum on September.

Source: https://ads.nipr.ac.jp/vishop/#/extent.
« Last Edit: December 20, 2020, 05:45:09 AM by Juan C. García »
Which is the best answer to Sep-2012 ASI lost (compared to 1979-2000)?
50% [NSIDC Extent] or
73% [PIOMAS Volume]

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