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Author Topic: Global sea ice area and extent data  (Read 149476 times)

gerontocrat

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Re: Global sea ice area and extent data
« Reply #700 on: December 11, 2019, 02:11:49 PM »
JAXA GLOBAL SEA ICE EXTENT :-  21,574,429 km2(December 10, 2019)

On this day well above average Antarctic extent loss and by very low Arctic extent gains. resulted in an extreme extent loss.

- 2019 is 2nd lowest in the satellite record since 1979,
- Extent loss on this day 267 k, 128 k more than the last 10 years' average of 139 k,
- Extent loss to date 3.03 million km2, 0.22 million (8.0 %) more than the 10 year average of 2.80 million km2 by this day.
- Extent is 1.60 million km2 greater than 2016,
- 30.8 % of the average ice loss of the season done, with on average 66 days to the average minimum date of 13 Feb.

The Perils of Projections

Still extremely early to take this seriously. Average melt from this date would produce a minimum of 15.27 million km2, 0.28 million less than the record low in early 2018.
_____________________________________________________________
« Last Edit: December 11, 2019, 09:52:27 PM by gerontocrat »
"Para a Causa do Povo a Luta Continua!"
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gerontocrat

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Re: Global sea ice area and extent data
« Reply #701 on: December 13, 2019, 01:39:12 PM »
JAXA GLOBAL SEA ICE EXTENT :-  21,230,602 km2(December 12, 2019)

On this day well above average Antarctic extent loss and low Arctic extent gains. resulted in an another large extent loss.

- 2019 is 2nd lowest in the satellite record since 1979,
- Extent loss on this day 202 k, 58 k more than the last 10 years' average of 143 k,
- Extent loss to date 3.37 million km2, 0.28 million (8.9 %) more than the 10 year average of 3.09 million km2 by this day.
- Extent is 1.61 million km2 greater than 2016,
- 34.0 % of the average ice loss of the season done, with on average 64 days to the average minimum date of 13 Feb.

The Perils of Projections

Average melt from this date would produce a minimum of 15.22 million km2, 0.33 million less than the record low in early 2018.
_____________________________________________________________
"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: Global sea ice area and extent data
« Reply #702 on: December 17, 2019, 11:30:31 AM »
JAXA GLOBAL SEA ICE EXTENT :-   20,659,892 km2(December 16, 2019)


- 2019 is 3rd lowest in the satellite record since 1979,
- Extent loss on this day 143 k, 24 k less than the last 10 years' average of 167 k,
- Extent loss to date 3.94 million km2, 0.23 million (6.3 %) more than the 10 year average of 3.71 million km2 by this day.
- Extent is 1.57 million km2 greater than 2016,
- 40.7 % of the average ice loss of the season done, with on average 60 days to the average minimum date of 13 Feb.

The Perils of Projections

Average melt from this date would produce a minimum of 15.26 million km2, 0.29 million less than the record low in early 2018.
_____________________________________________________________
"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: Global sea ice area and extent data
« Reply #703 on: December 27, 2019, 09:57:37 AM »
JAXA GLOBAL SEA ICE EXTENT :-    19,118,131 km2(December 26, 2019)


- 2019 is 4th lowest in the satellite record since 1979,
- Extent loss on this day 64 k, 73 k less than the last 10 years' average of 137 k,
- Extent loss to date 5.48 million km2, 0.08 million (1.4 %) less than the 10 year average of 5.56 million km2 by this day.
- Extent is 1.36 million km2 greater than 2016,
- Extent is 1.01 million km2 greater than 2018,
- Extent is 0.03 million km2 greater than 2017,
- 61.0 % of the average ice loss of the season done, with on average 50 days to the average minimum date of 13 Feb.

The Perils of Projections

Average melt from this date would produce a minimum of 15.57 million km2, 0.02 million more than the record low in early 2018.

At the moment Antarctic Sea Ice losses are below average, Arctic Sea Ice gains are above average.
_____________________________________________________________
"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: Global sea ice area and extent data
« Reply #704 on: December 28, 2019, 01:38:34 PM »
JAXA GLOBAL SEA ICE EXTENT :-    19,118,131 km2(December 26, 2019)


- 2019 is 4th lowest in the satellite record since 1979,
[...]
One of the very few days in 2019 when Global Sea Ice Extent is not under the top three...
It is too late just to be concerned about Climate Change

gerontocrat

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Re: Global sea ice area and extent data
« Reply #705 on: December 31, 2019, 01:24:30 PM »
JAXA GLOBAL SEA ICE EXTENT :-  18,644,566 km2(December 30, 2019)

- 2019 is 4th lowest in the satellite record since 1979,
- Extent loss on this day 125 k, 34 k less than the last 10 years' average of 159 k,
- Extent loss to date 5.96 million km2, 0.15 million (2.5 %) less than the 10 year average of 6.11 million km2 by this day.
- Extent is 0.87 million km2 greater than 2016,
- Extent is 0.98 million km2 greater than 2018,
- Extent is 0.21 million km2 greater than 2017,
- 67.1 % of the average ice loss of the season done, with on average 46 days to the average minimum date of 13 Feb.

The Perils of Projections

Average melt from this date would produce a minimum of 15.65 million km2, 0.09 million more than the record low in early 2018.

At the moment Antarctic Sea Ice losses are well below average, Arctic Sea Ice gains are also below average.
_____________________________________________________________
"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)

ArcticMelt2

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Re: Global sea ice area and extent data
« Reply #706 on: January 02, 2020, 08:04:57 AM »
Jaxa data:

The average annual extent in 2019 in the Arctic is 2nd. Antarctica is also 2nd place.

Global extent - first place.


gerontocrat

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Re: Global sea ice area and extent data
« Reply #707 on: January 03, 2020, 08:17:43 PM »
If you spot something awry in the data - LET ME KNOW. Changeover of year gave some problems.

JAXA GLOBAL SEA ICE EXTENT :-  18,441,357 km2(January 2, 2020)

- On this day extent is 5th lowest in the satellite record since 1979,
- Extent loss on this day 59 k, 70 k less than the last 10 years' average of 129 k,
- Extent loss to date 6.16 million km2, 0.38 million (5.8 %) less than the 10 year average of 6.54 million km2 by this day.
- Extent is 1.08 million km2 greater than 2017,
- Extent is 0.87 million km2 greater than 2019,
- Extent is 0.23 million km2 greater than 2018,
- Extent is 0.10 million km2 greater than 2006,

- 71.8% of the average ice loss of the season done, with on average 41 days to the average minimum date of 12 Feb.

The Perils of Projections

Average melt from this date would produce a minimum of 15.87 million km2, 0.32 million more than the record low in early 2018.

At the moment Antarctic Sea Ice losses are well below average, Arctic Sea Ice gains are a mixture
_____________________________________________________________
"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: Global sea ice area and extent data
« Reply #708 on: January 08, 2020, 12:23:11 PM »
JAXA GLOBAL SEA ICE EXTENT :-  18,022,051 km2(January 7, 2020)

- On this day extent is 5th lowest in the satellite record since 1979,
- Extent loss on this day 122 k, 2 k more than the last 10 years' average of 120 k,
- Extent loss to date 6.58 million km2, 0.52 million (7.3 %) less than the 10 year average of 7.10 million km2 by this day.
- Extent is 0.86 million km2 greater than 2017,
- Extent is 0.83 million km2 greater than 2018,
- Extent is 0.87 million km2 greater than 2019,
- Extent is 0.51 million km2 greater than 2006,

- 77.9% of the average ice loss of the season done, with on average 36 days to the average minimum date of 12 Feb.

The Perils of Projections

Average melt from this date would produce a minimum of 16.01 million km2, 0.46 million more than the record low in early 2018.

At the moment Antarctic Sea Ice losses are mostly well below average, Arctic Sea Ice gains are a mixture.
_____________________________________________________________
"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: Global sea ice area and extent data
« Reply #709 on: January 10, 2020, 08:46:16 PM »
I compared the actual JAXA extent values with the averages (1980s to 2010s) and determined the time difference, when today's values had the same value as the averages of the various decades.

For Jan 09, 2020 the difference in the Arctic to the 2010s average was 0 days. In the Antarctic the difference was 4 days (sum: 4 days)
This difference is larger compared with previous decades:
Arctic Jan 09, 2020 vs. 2000s average 12 days, Antarctic 5 days (sum 17 days),
Arctic Jan 09, 2020 vs. 1990s average 23 days, Antarctic 4 days (sum 27 days),
Arctic Jan 09, 2020 vs. 1980s average 31 days, Antarctic 3 days (sum 34 days).

This difference had been larger in the last years on this date - at the moment neither the Arctic Sea Ice Extent nor the Antarctic Sea Ice Extent is at record lows...
It is too late just to be concerned about Climate Change

gerontocrat

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Re: Global sea ice area and extent data
« Reply #710 on: January 12, 2020, 01:46:59 PM »
JAXA GLOBAL SEA ICE EXTENT :  17,550,185  km2(January 11, 2020)

- On this day extent is 5th lowest in the satellite record since 1979,
- Extent loss on this day 103 k, 2 k less than the last 10 years' average of 105 k,
- Extent loss to date 6.58 million km2, 0.52 million (7.3 %) less than the 10 year average of 7.10 million km2 by this day.
- Extent is 0.39 million km2 greater than 2006,
- Extent is 0.89 million km2 greater than 2017,
- Extent is 0.57 million km2 greater than 2018,
- Extent is 0.70 million km2 greater than 2019,

- 82.6% of the average ice loss of the season done, with on average 32 days to the average minimum date of 12 Feb.

The Perils of Projections

Average melt from this date would produce a minimum of 15.96 million km2, 0.41 million more than the record low in early 2018.

At the moment Antarctic Sea Ice losses are mostly well below average, Arctic Sea Ice gains are a mixture.
_____________________________________________________________
"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: Global sea ice area and extent data
« Reply #711 on: January 18, 2020, 08:54:15 AM »
JAXA GLOBAL SEA ICE EXTENT :   17,321,478 km2(January 17, 2020)

Recently, mostly above average Arctic sea ice extent daily gains, and mostly below average Antarctic sea ice extent daily loss

- On this day extent is 7th lowest in the satellite record since 1979,
- Extent loss on this day 45 k, 49 k less than the last 10 years' average of 94 k,
- Extent loss to date 7.28 million km2, 0.77 million (9.6%) less than the 10 year average of 8.05 million km2 by this day.
- Extent is 0.80 million km2 greater than 2006,
- Extent is 1.31 million km2 greater than 2017,
- Extent is 0.72 million km2 greater than 2018,
- Extent is 0.67 million km2 greater than 2019,

- 88.4% of the average ice loss of the season done, with on average 26 days to the average minimum date of 12 Feb.

The Perils of Projections

Average melt from this date would produce a minimum of 16.25 million km2, 0.70 million more than the record low in early 2018.
_____________________________________________________________
"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: Global sea ice area and extent data
« Reply #712 on: January 21, 2020, 12:01:23 PM »
JAXA GLOBAL SEA ICE EXTENT :    17,206,956 km2(January 20, 2020)

Recently, mostly above average Arctic sea ice extent daily gains, and mostly below average Antarctic sea ice extent daily loss

- On this day extent is 8th lowest in the satellite record since 1979,
- Extent loss on this day 61 k, 7 k less than the last 10 years' average of 68 k,
- Extent loss to date 7.31 million km2, 0.92 million (11.0%) less than the 10 year average of 8.31 million km2 by this day.
- Extent is 1.05 million km2 greater than 2006,
- Extent is 1.18 million km2 greater than 2017,
- Extent is 0.92 million km2 greater than 2018,
- Extent is 0.62 million km2 greater than 2019,

- 91.2% of the average ice loss of the season done, with on average 23 days to the average minimum date of 12 Feb.

The Perils of Projections

Average melt from this date would produce a minimum of 16.41 million km2, 0.86 million more than the record low in early 2018.
_____________________________________________________________
"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: Global sea ice area and extent data
« Reply #713 on: January 24, 2020, 08:14:33 AM »
The season-typical decrease of Global Sea Ice Extent has stalled completely in the last days and increased from Jan 22 to Jan 23. It has almost matched the 2010s average and is only 0.76 M km² apart from the 2000s average. This is the smallest difference I have noticed since I started to watch global sea ice in 2016. Mainly the much less than average decrease in the last weeks on the Antarctic side has led to this situation.
It is too late just to be concerned about Climate Change

gerontocrat

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Re: Global sea ice area and extent data
« Reply #714 on: January 24, 2020, 03:49:19 PM »
JAXA GLOBAL SEA ICE EXTENT : 17,247,575 km2(January 23, 2020)

Recently, mostly above average Arctic sea ice extent daily gains, and mostly below average Antarctic sea ice extent daily loss

- On this day extent is 9th lowest in the satellite record since 1979,
- Extent loss gain on this day 37 k, 75 k different from the last 10 years' average loss of 38 k,
- Extent loss to date 7.35 million km2, 1.11 million (13.1%) less than the 10 year average of 8.46 million km2 by this day.
- Extent is 1.04 million km2 greater than 2006,
- Extent is 1.24 million km2 greater than 2017,
- Extent is 1.24 million km2 greater than 2018,
- Extent is 0.73 million km2 greater than 2019,

- 92.9% of the average ice loss of the season done, with on average 20 days to the average minimum date of 12 Feb.

The Perils of Projections

Average melt from this date would produce a minimum of 16.60 million km2, 1.05 million more than the record low in early 2018.
____________________________________________________________________
"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)

Rodius

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Re: Global sea ice area and extent data
« Reply #715 on: Today at 01:02:08 AM »
Are we going to have a year of recovery?

Or is that sinking feeling in my gut still right?