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Sleepy

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Re: Sea Ice Extent around Antarctica
« Reply #800 on: January 24, 2018, 10:32:17 AM »
ADS January1-22.
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gerontocrat

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Re: Sea Ice Extent around Antarctica
« Reply #801 on: January 24, 2018, 01:26:46 PM »
Record high sea temperatures in the Tasman Sea, and also record air temps.  Invercargill (46 South) has been hotter than Jakarta recently!
The Antarctic circumpolar winds stop warm air getting close to the Antarctic shore?
If that polar vortex collapsed (as in the Arctic) would that be a complete game changer?
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Sleepy

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Re: Sea Ice Extent around Antarctica
« Reply #802 on: January 24, 2018, 02:05:03 PM »
Yes but there are some huge differences compared to the Arctic. No mountain ranges that aid stratospheric warmings through planetary waves like in the NH. The Antarctic circumpolar current (the largest on the planet) effectively isolates Antarctica, and there's still some ice down there, even if it has started to move rather disturbingly in recent years. The Antarctic polar vortex is less disturbed, colder and persists longer and will hopefully continue to do so for a very long time.
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Re: Sea Ice Extent around Antarctica
« Reply #803 on: January 24, 2018, 02:39:21 PM »
Whilst the Ozone hole was at its largest the temps high above the south pole were abnormal and it lead to strengthening Katabatic winds pushing cold air out into the surrounding oceans. this helped strengthen both the circumpolar winds/current so placing the Antarctic continent into 'splendid isolation' The healing of the Ozone hole is allowing the katabatic winds to ease and so allow both ocean and atmosphere to now penetrate beyond its old limits.
This is 30 years warming/humidifying of the atmosphere to crash into the coastal areas (including the shelfs).
We all knew this strange behaviour of extending sea ice cover had to peak and end as we witnessed the rest of the world warm further. The flip flop of the Pacific naturals seems to have been the switch , back in 2014, for this phenomena.
Full steam ahead from now on I think?
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Sleepy

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Re: Sea Ice Extent around Antarctica
« Reply #804 on: January 24, 2018, 03:30:43 PM »
It might be, Gray-Wolf. Those sub-glacial volcanoes in West Antarctica might have a word or two to say, when the load above continues to decrease. Who needs televison, this thriller is live every day.
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Re: Sea Ice Extent around Antarctica
« Reply #805 on: January 25, 2018, 10:20:27 AM »
« Last Edit: January 25, 2018, 10:26:07 AM by Reallybigbunny »

gerontocrat

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Re: Sea Ice Extent around Antarctica
« Reply #806 on: January 25, 2018, 04:26:56 PM »
The Antarctic polar vortex is less disturbed, colder and persists longer and will hopefully continue to do so for a very long time.
What a difference a day makes - Antarctic  jetstream and 10m winds have sort of broken down here and there.

And weather-forecast.com has gone doo-lally 10 days out (will be interesting to see if reality is anything lime that forecast)
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gerontocrat

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Re: Sea Ice Extent around Antarctica
« Reply #807 on: January 25, 2018, 04:30:03 PM »
Meanwhile, Antarctic sea ice extent continues to reduce at sort of an average rate.

JAXA DATA as at 24 Jan

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Sleepy

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Re: Sea Ice Extent around Antarctica
« Reply #808 on: January 25, 2018, 04:58:23 PM »
The Antarctic polar vortex is less disturbed, colder and persists longer and will hopefully continue to do so for a very long time.
What a difference a day makes - Antarctic  jetstream and 10m winds have sort of broken down here and there.

And weather-forecast.com has gone doo-lally 10 days out (will be interesting to see if reality is anything lime that forecast)
It's summer down there gerontocrat.
What I wrote above was long term. Compare these two animations and spot the difference. I could have searched for dates with bigger differences, but I just took today and six months earlier.

First image is the SH at 250mb today and six months earlier.
Second image is the NH at 250mb today and six months earlier.
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Lord M Vader

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Re: Sea Ice Extent around Antarctica
« Reply #809 on: January 25, 2018, 08:36:14 PM »
Check out this interesting feature! :) http://www.smh.com.au/environment/weather/unusually-large-cyclone-churns-through-the-antarctic-sea-ice-20180124-h0o1xs.html

As of January 24, we are now down to 3,099 Mn km2 according to NSIDC so we should go below 3 Mn km2 by January 25 or January 26. The 5-day average from NSIDC will take a few more days before moving below 3 Mn km2. About a month or so remains of the melting season. Crucial to the final outcome is how much of the sea ice that will melt out in Ross Sea and adjacent area. Some parts of the Weddell Sea will also contribute. But there are a numbers of "if" to be fulfilled in order to get a new record low minimum for 2018.

gerontocrat

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Re: Sea Ice Extent around Antarctica
« Reply #810 on: January 25, 2018, 09:01:05 PM »
The Antarctic polar vortex is less disturbed, colder and persists longer and will hopefully continue to do so for a very long time.
What a difference a day makes - Antarctic  jetstream and 10m winds have sort of broken down here and there.

And weather-forecast.com has gone doo-lally 10 days out (will be interesting to see if reality is anything lime that forecast)
It's summer down there gerontocrat.
What I wrote above was long term. Compare these two animations and spot the difference. I could have searched for dates with bigger differences, but I just took today and six months earlier.

Too right but summers are really, really short down there F0r the last month or so the vortex has been a bit stronger, a bit further from shore, and more complete. Hence the post.  In winter although the vortex is much stronger, and further from shore, strong weather system between the vortex and the shore seem to be often generated, causing strong sea ice drift which in the Weddell Sea, for example, throw the growing ice out. If strong lows and sea drift happened in this last month of summer, a lot of remaining ice could be destroyed.

What a lot of ifs, waiting for the buts.
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gerontocrat

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Re: Sea Ice Extent around Antarctica
« Reply #811 on: January 27, 2018, 12:41:59 PM »
JAXA DATA as at 26 Jan

Meanwhile, Antarctic sea ice extent continues to reduce at sort of an average rate.

Weather-forecast.com suggests some strong lows approaching the Antarctic shore in early Feb - but that is problematic. If it does happen it could shovel a lot of remaining ice out.
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gerontocrat

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Re: Sea Ice Extent around Antarctica
« Reply #812 on: January 27, 2018, 02:21:36 PM »
NSIDC DAILY DATA as at 26 Jan & https://sites.google.com/site/arctischepinguin/home/global-sea-ice

Arctic extent down by 120K, Antarctic by 100k. The effect is obvious from the images. 2018 extent below 2017 for the first(?) time, Area now definitely lowest of any year's minimum except 2017.

What a season this is turning out to be.
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Re: Sea Ice Extent around Antarctica
« Reply #813 on: January 27, 2018, 03:13:24 PM »
As AGW pushes us deeper into an "equable climate" regime (more warming at poles than equatorial regions, more warming at nights than daytime), winters at the poles will begin to rival the excitement of summers.

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Re: Sea Ice Extent around Antarctica
« Reply #814 on: January 27, 2018, 10:00:36 PM »
This is pure speculation (forecast is a long way off), but if the weather in the image below does happen, a lot of the stubborn sea ice in the SW Weddell Sea could be shovelled out - and might even give Larsen C's 68A a shove.

Surface Wind on Friday 02 Feb at 1pm NZDT
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Re: Sea Ice Extent around Antarctica
« Reply #815 on: January 28, 2018, 02:40:27 PM »
NSIDC DAILY DATA as at 26 Jan & https://sites.google.com/site/arctischepinguin/home/global-sea-ice

Arctic extent down by 120K, Antarctic by 100k. The effect is obvious from the images. 2018 extent below 2017 for the first(?) time, Area now definitely lowest of any year's minimum except 2017.

What a season this is turning out to be.

Surely this belongs in the global sea ice thread?

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Re: Sea Ice Extent around Antarctica
« Reply #816 on: January 29, 2018, 03:30:36 PM »
NSIDC NT extent and area graphs. Extent is in a solid second lowest place behind (=above) 2017. Area is at the moment close to 2017 and 1993. The latter will be the lowest by far for the rest of the melting season, will 2018 follow?

Current annual minimum for 2018 is currently 26th lowest, area 30th lowest out of 40 years. For instance 2018 extent is at this moment already below the annual minimums of 2012, 2013,2014 and 2015.

 

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Re: Sea Ice Extent around Antarctica
« Reply #817 on: January 29, 2018, 04:58:04 PM »
NSIDC DAILY DATA as at 26 Jan & https://sites.google.com/site/arctischepinguin/home/global-sea-ice

Arctic extent down by 120K, Antarctic by 100k. The effect is obvious from the images. 2018 extent below 2017 for the first(?) time, Area now definitely lowest of any year's minimum except 2017.

What a season this is turning out to be.

Surely this belongs in the global sea ice thread?
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gerontocrat

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Re: Sea Ice Extent around Antarctica
« Reply #818 on: January 30, 2018, 01:30:58 PM »
JAXA ANTARCTIC EXTENT DATA AS 29 JAN

Extent is 2,889,509 km2

On average about 21 days, just 0.85 million km2 and 5% of extent loss to go. Extent minimum date in the past has ranged from 18 days to to 31 days from Jan 29. Note that days to go do not seem to correspond to min and max extent loss from now. So who knows the final result, though a record low is still on the cards.

In the last three days daily extent loss has declined to well below the average for this time of year. 
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Re: Sea Ice Extent around Antarctica
« Reply #819 on: January 30, 2018, 07:23:55 PM »
Ice melts from the edges, and there are many edges showing.



Strangely, sea ice near the Thwaites and Pine Island Glaciers is melting/breaking up much more slowly and to a smaller extent than in the last few years. I'm interpreting this as an indication that melt has accelerated under them, causing an increase in fresh water near the surface and thicker ice forming over the winter. Any body have evidence that might bear on this anomaly?

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Re: Sea Ice Extent around Antarctica
« Reply #820 on: January 30, 2018, 08:55:08 PM »
Strangely, sea ice near the Thwaites and Pine Island Glaciers is melting/breaking up much more slowly and to a smaller extent than in the last few years. I'm interpreting this as an indication that melt has accelerated under them, causing an increase in fresh water near the surface and thicker ice forming over the winter. Any body have evidence that might bear on this anomaly?
I suspect the same as your interpretation, but have no data to back it up.

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Re: Sea Ice Extent around Antarctica
« Reply #821 on: January 30, 2018, 09:59:30 PM »
A dinosaur has arrived in Antarctica
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Re: Sea Ice Extent around Antarctica
« Reply #822 on: January 31, 2018, 02:36:52 AM »
Strangely, sea ice near the Thwaites and Pine Island Glaciers is melting/breaking up much more slowly and to a smaller extent than in the last few years. I'm interpreting this as an indication that melt has accelerated under them, causing an increase in fresh water near the surface and thicker ice forming over the winter. Any body have evidence that might bear on this anomaly?
I suspect the same as your interpretation, but have no data to back it up.
The NSIDC map seems to show the median ice edge as being close to the glaciers (Pine Island/Thwaites), with "polynyas" (might not be the right term) close to the coast. There are a lot of smaller icebergs from the glaciers reinforcing last winters sea ice in the area too? The presence of extra ice in the area is likely to reduce the mixing of this year's fresh melt water before the winter freeze.

gerontocrat

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Re: Sea Ice Extent around Antarctica
« Reply #823 on: January 31, 2018, 12:35:39 PM »
JAXA ANTARCTIC EXTENT DATA AS 30 JAN

Extent is 2,824,655 km2, down 65 k. With 20 days to go (on average) there are are number of years where the daily extent is well below previous years minima.
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gerontocrat

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Re: Sea Ice Extent around Antarctica
« Reply #824 on: February 03, 2018, 12:05:34 PM »
JAXA DATA - Extent as 2 Feb is  2,666,128 km2
Extent loss continuing at above 2017 levels. Average extent loss in the these last 17 days (average)  remaining of 0.62 million (4%) would produce a minimum of just over 2 million km2, 0.1 million km2 less than last year's record low of 2.15 million km2.

The second table shows that extent is well below the minimum for all but 4 previous years.
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Re: Sea Ice Extent around Antarctica
« Reply #825 on: February 04, 2018, 02:28:19 PM »
Updating NSIDC NT extent and area graphs. Extent is getting close to the lowest value for the day, area is further away from that.

In the ranking for lowest annual values, 2018 is now the sixth lowest:

Extent
1 2017-03-01 2.074934
2 1997-02-27 2.264152
3 1993-02-19 2.280783
4 2011-02-22 2.318847
5 1984-02-27 2.381731
6 2018-02-03 2.477326

Area is 18th:

Area
1 1993-02-26 1.248163
2 2017-03-04 1.486148
3 1984-02-27 1.509585
4 1996-02-25 1.535481
5 2000-02-18 1.561033
6 2006-03-04 1.565059
7 1999-02-26 1.577058
8 1981-03-03 1.588790
9 1997-02-19 1.589288
10 1985-02-19 1.635733
11 1992-02-23 1.641926
12 1980-02-27 1.646186
13 2002-02-20 1.649281
14 1998-02-26 1.650298
15 2011-02-26 1.677629
16 1988-02-24 1.691611
17 1982-02-17 1.713860
18 2018-02-03 1.731454

gerontocrat

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Re: Sea Ice Extent around Antarctica
« Reply #826 on: February 05, 2018, 11:32:32 AM »
JAXA DATA - Antarctic Sea Ice Extent as at 4 Feb - 2,543,322 km2, still some 170k greater than 2017 at this date.

With, on average, just 15 days, 3% and 0.5 million km2 extent loss remaining, if extent loss continues at average the minimum would be 2.04 million km2, some 110 k km2 below the record low of 2017.
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Lord M Vader

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Re: Sea Ice Extent around Antarctica
« Reply #827 on: February 06, 2018, 07:26:25 AM »
Seems like we will have an uptick from NSIDC today. The stubborn area of ice in Ross Sea just won't go away. If it had, we would have seen a new record low.

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Re: Sea Ice Extent around Antarctica
« Reply #828 on: February 06, 2018, 05:42:45 PM »
Per todays number from NSIDC we have secured the seventh lowest minimum if no further melting would occur. If no surprise is going to come up, we will go below 2006 minimum tomorrow when NSIDC update their numbers.

Here are the respective minimums for the lowest years wrt 5-day mean from NSIDC:

(7. 2018: 2,520 Mn km2)
6. 2006: 2,519 Mn km2
5. 1984: 2,456 Mn km2
4. 2011: 2,339 Mn km2
3. 1993: 2,312 Mn km2
2. 1997: 2,290 Mn km2
1. 2017: 2,106 Mn km2

The minimums for 2006 will easily be beaten by tomorrow and the minimum from 1984 should also be beaten in a couple of days. Given the stubborn areas in Ross Sea that have prevailed for a while now I think it's going to be a difficult task to go below the years 1997-1993-2011. Most likely we'll end up with a fourth lowest minimum this year. About 1-2 weeks remain of the melting season and I doubt we'll see such a late minimum like last year.

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Re: Sea Ice Extent around Antarctica
« Reply #829 on: February 07, 2018, 05:25:59 PM »
Per todays number from NSIDC we have secured the sixth lowest minimum if no further melting would occur. If no surprise is going to come up, we will be below 1984 minimum tomorrow when NSIDC update their numbers.

Here are the respective minimums for the lowest years wrt 5-day mean from NSIDC:

(6. 2018: 2,465 Mn km2)
5. 1984: 2,456 Mn km2
4. 2011: 2,339 Mn km2
3. 1993: 2,312 Mn km2
2. 1997: 2,290 Mn km2
1. 2017: 2,106 Mn km2

The daily extent value for February 6 was 2,374 Mn km2. To beat the 2011 and 1993 minimum we need to lose at least another 100K of sea ice.

As the melting season is coming to an end it might be of interest to see which areas that have potential for additional melting/compacting until refreezing starts.
The attached map over the sea ice concentration reveals that there are a few areas that might be able to shrink away and give us a new record minimum. Looking at the Copernicus ice map (not shown here), shows that the ice at the western edge of the Ross sea is having the biggest chances to go away as it should be thin. And the forecast from CC-Reanalyzer is calling for quite strong winds during the next 48 hours or so which will bring warmer air and warmer water from north that might make the ice going "poof".

Some of the loosen ice in the Weddell Sea should also have a decent chance to dissolve. The ice in the central Ross Sea seems to be fairly thick and a part of it will most likely survive this melting season. Don't be fooled by the loosiness! According to Copernicus that ice is about 0,5 m thick and that should be too much to get away before refreezing starts.

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Re: Sea Ice Extent around Antarctica
« Reply #830 on: February 08, 2018, 08:41:24 AM »
Jaxa SIE is now 2,368,377 and is very close to the same date of 2017 which was 2,355,011. The new record low is quite possible cause there's still weak ice to melt
« Last Edit: February 08, 2018, 08:53:31 AM by Pavel »

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Re: Sea Ice Extent around Antarctica
« Reply #831 on: February 08, 2018, 11:35:46 AM »
JAXA Antarctic Extent as at 7 Feb 2018 2,3683,77 km2

The last two days have seen a 61 k ( 6 Feb ) and 59 k ( 7 Feb) km2 extent loss, (" a bit of a puzzle"  NSIDC Jan 18 Arctic Sea Ice News. As they say, air temperatures have been at or below average over the sea ice.) SST anomalies are nothing special. So is it what lies beneath - upwelling ?

With just 12 days, 0.38 million km2, 2.3% of average extent loss to go, a new record low is now very much on. Indeed 9 out of 10 previous years say yes. The season could be finished in just 9 days or up to 22 days. Nevertheless another 221k km2 extent loss would equal 2017's record low, and on 7 Feb was just 13k km2 above the 2017 extent on that date.

Looking beyond the minimum, note from the graph how extent gain in 2017 was very much below average. To stay at record lows, 2018 will have to do the same.
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Re: Sea Ice Extent around Antarctica
« Reply #832 on: February 08, 2018, 01:56:03 PM »
NSIDC number for February 7 is now down to 2,316 Mn km2 which is the lowest value on record for the date. The 5-day mean will lag however but in a few days we should be able to beat the minimums from 2011 and 1993. Beating 1997 is nout out of bound but 2017 should be a more difficult task given that we can't expect the melting season to end at March 1 like last year which was an unusually late date for the daily value to reach the minimum.

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Re: Sea Ice Extent around Antarctica
« Reply #833 on: February 09, 2018, 10:28:59 AM »
JAXA Antarctic Extent as at 8 Feb 2018 2,354,625 km2, a small extent loss of 14k, compared with the 2017 extent loss on that day of 33k, and an average extent loss of around 40 to 50 k.  As a result 2018 extent is now 33k greater than 2017.
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Re: Sea Ice Extent around Antarctica
« Reply #834 on: February 10, 2018, 03:35:57 PM »
Time for an update of my NSIDC NT extent and area graphs. Extent is lowest for the day, while area is lowest except for the outstanding 1993 season.

In the lowest annual rankings extent is now in third place, area has now reached the 8th place:
Extent
1 2017-03-01 2.074934
2 1997-02-27 2.264152
3 2018-02-09 2.269888

Area
1 1993-02-26 1.248163
2 2017-03-04 1.486148
3 1984-02-27 1.509585
4 1996-02-25 1.535481
5 2000-02-18 1.561033
6 2006-03-04 1.565059
7 1999-02-26 1.577058
8 2018-02-09 1.578941

gerontocrat

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Re: Sea Ice Extent around Antarctica
« Reply #835 on: February 12, 2018, 11:25:36 AM »
JAXA Antarctic Extent as at 11 Feb 2018 2,340,990 km2.

The last four days have seen extent loss slowing to a crawl, and is now 104k above the 2017 extent on that date.

There are on average (last 10 years) just 8 days (ranging from 5 to 18), 0.21 million km2, 1.3% of extent loss to go. Average loss would result in a minimum of 2.13 million Km2 , just .02 million km2 below 2017's record low. The range of results from the last 10 years remaining extent losses  is from 1,824,585 to 2,280,585 km2.

These are observations, not predictions. What will the weather and the ocean currents do? Will 2018 match the very low 2017 extent gains after the minimum ?


Looking beyond the minimum, note from the graph how extent gain in 2017 was very much below average. To stay at record lows, 2018 will have to do the same.
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Lord M Vader

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Re: Sea Ice Extent around Antarctica
« Reply #836 on: February 12, 2018, 02:29:53 PM »
Second lowest minimum secured now but with a slim margin against 1997. This was due to a formidable +63K uptick... Remains to see if we are going to see a drop by tomorrow or a stall in the upcoming days? After all, the melting season is on the verge to end....

Given the somewhat surprising uptick, I think it will be very hard to beat 2017 now..

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Re: Sea Ice Extent around Antarctica
« Reply #837 on: February 13, 2018, 10:46:41 AM »
JAXA Extent at 12th Feb 2,317,600 km2, down -23,390 km2, 90,756 km2 above 2017 on that date. Just 7 days on average to minimum, (min 4, max 17). Note that 2017 minimum was 1st March, 17 days away.

I give it at about 50-50 for a new record low minimum.
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Lord M Vader

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Re: Sea Ice Extent around Antarctica
« Reply #838 on: February 14, 2018, 08:10:31 AM »
Seems like refreezing has begun in the southernmost corner of Weddell Sea. In the Ross Sea, the stubborn small patches of floes are holding their owns against complete melting. They are however, showing signs of melting but it should not be enough to melt out completely until refreezing starts.

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Re: Sea Ice Extent around Antarctica
« Reply #839 on: February 14, 2018, 10:38:43 AM »
JAXA Extent at 13th Feb 2,306,443 km2, down 11,157 km2, 84,116 km2 above 2017 on that date. Just 1.0%, 0.15 million km2, 6 days on average to minimum, (min 3, max 16 - 2017 minimum 1st March).

I still give it at about 50-50 for a new record low minimum.
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Lord M Vader

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Re: Sea Ice Extent around Antarctica
« Reply #840 on: February 16, 2018, 09:12:19 AM »
Seems more and more like refreezing has begun in the southeast corner of the Weddell Sea. With the stubborn ice floes in the Ross Sea we should expect an early minimum, maybe even a record early such. Let's wait and see but I believe NSIDC will report another uptick in extent today in about 4½ hours.

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Re: Sea Ice Extent around Antarctica
« Reply #841 on: February 16, 2018, 12:10:42 PM »
Seems more and more like refreezing has begun in the southeast corner of the Weddell Sea. With the stubborn ice floes in the Ross Sea we should expect an early minimum, maybe even a record early such. Let's wait and see but I believe NSIDC will report another uptick in extent today in about 4½ hours.

Jaxa extent up 7k km2 ( to 2,305,396 km2). Was also thinking that maybe the minimum has passed?
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Lord M Vader

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Re: Sea Ice Extent around Antarctica
« Reply #842 on: February 18, 2018, 05:30:50 PM »
NSIDC down 70K during the last two days. The 5-day average is now 2,214 Mn km2 with a daily low at 2,170 Mn km2. That leaves us 108K above the 2017 record minimum (wrt 5-day average) and 95K above the daily record low minimum. Impossible task to match last years minimum? No, but a very difficult one as the melting season should be over in any day now.

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Re: Sea Ice Extent around Antarctica
« Reply #843 on: February 19, 2018, 06:37:12 PM »
Another 20K down today and the daily value is now 75K behind the all time low which was 2,075 Mn km2 by March 1 last year. The 5-day average dropped 13K and is now dowwn to 2,201 Mn km2. This is 95K above the record low minimum from March 3 last year.

Weddell Sea looks rather cold the next couple of days and if refreezing is going to start there now it will be impossible to beat last years minimum. In fact, eyeballing EOSDIS from NASA shows young thin ice that might form very soon.


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Re: Sea Ice Extent around Antarctica
« Reply #844 on: February 20, 2018, 05:56:55 AM »
2,21 yesterday via ADS, I think we can stop there now.  ;D
https://forum.arctic-sea-ice.net/index.php/topic,2240.msg139189.html#msg139189
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gerontocrat

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Re: Sea Ice Extent around Antarctica
« Reply #845 on: February 20, 2018, 10:38:35 AM »
2,21 yesterday via ADS, I think we can stop there now.  ;D

Posted by: Sleepy « on: Today at 05:56:55 AM

Hullo Sleepy  - when do you sleep?

JAXA has woken up - data as at 19th Feb

On average the season is over. But last year the minimum came in 10 days time. But now my table / predictions become wobbly. It is in the lap of the Water and Wind Gods (that I am sure exist in Scandinavian legend).

So I just present the tables and graph
"Para a Causa do Povo a Luta Continua!"
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Re: Sea Ice Extent around Antarctica
« Reply #846 on: February 20, 2018, 11:14:11 AM »
Posted by: Sleepy « on: Today at 05:56:55 AM

Hullo Sleepy  - when do you sleep?
Sorry for that, my early mornings offended some people on my last stint in here (posting daily deltas), so I've tried hard to abstain from posting too early this time. ;)
https://forum.arctic-sea-ice.net/index.php/topic,230.msg84976.html#msg84976
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Lord M Vader

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Re: Sea Ice Extent around Antarctica
« Reply #847 on: February 21, 2018, 06:49:04 AM »
Eyeballing the map from Uni Bremen, I would say that the melting season is over! Look at the new ice forming in the southeast corner of the Weddell Sea! In addition, cold weather is forecasted to persist over the Weddell Sea which shoud favor refreezing... All together, the NSIDC minimum will most likely be February 20 which which should be classified ass fairly nomal.

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Re: Sea Ice Extent around Antarctica
« Reply #848 on: February 21, 2018, 09:16:53 AM »
It might be, a slight uptick via ADS today. Or as gerontocrat expressed it above, it's in the lap of Njord.
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gerontocrat

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Re: Sea Ice Extent around Antarctica
« Reply #849 on: February 21, 2018, 01:32:55 PM »
Or as gerontocrat expressed it above, it's in the lap of Njord.
And who am I to tell Njord what to do ?

JAXA table and graph attached (if in five days data still says Feb 20 was the minimum, switch to  maximum table, methinks ).
"Para a Causa do Povo a Luta Continua!"
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