On 06/02/2017 15:18, N_Cook wrote:
On 05/02/2017 14:32, N_Cook wrote:
16.275 million sq km for 04 Feb +going
Global extent anomaly (normalised) +going at -2.273
The "all-time" minimum Antarctic sea-ice looks to be on about 15 Feb
2017, stood at 2.447 m sq km yesterday, 157,000 sq km above that 27 Feb
1997 record as of yesterday

same 16.275 million sq km for 05 Feb
Global extent anomaly (normalised) -going at -2.275
The "all-time" minimum Antarctic sea-ice looks to be on about 14 Feb
2017, stood at 2.429 m sq km yesterday, 139,000 sq km above that 27 Feb
1997 record as of yesterday

16.283 million sq km +going for 06 Feb
Global extent anomaly (normalised) +going at -2.236
The "all-time" minimum Antarctic sea-ice looks to be on about 14 Feb
2017, stood at 2.411 m sq km yesterday so 121,000 sq km above that 27
Feb 1997 record as of yesterday

On 07/02/2017 14:55, N_Cook wrote:
16.283 million sq km +going for 06 Feb
Global extent anomaly (normalised) +going at -2.236
The "all-time" minimum Antarctic sea-ice looks to be on about 14 Feb
2017, stood at 2.411 m sq km yesterday so 121,000 sq km above that 27
Feb 1997 record as of yesterday

monthly news bulletin from the source of this data
http://nsidc.org/arcticseaicenews/

16.293 million sq km +going for 07 Feb
Global extent anomaly (normalised) +going at -2.193
The "all-time" minimum Antarctic sea-ice looks to be later Feb 2017,
stood at 2.411 m sq km yesterday so 121,000 sq km above that 27 Feb 1997
record as of yesterday .
Same figure as yesterday, something broken away compensating for normal
ice loss? perhaps a larger than recent daily depletion figure tomorrow,
ie difference between are and extent determination

On Monday, 6 February 2017 21:54:51 UTC, Weatherlawyer wrote:

'Dawlish.'

The obsession continues, amongst total, unadulterated, denial.

On Wednesday, 8 February 2017 14:51:12 UTC, N_Cook wrote:
On 07/02/2017 14:55, N_Cook wrote:
16.283 million sq km +going for 06 Feb
Global extent anomaly (normalised) +going at -2.236
The "all-time" minimum Antarctic sea-ice looks to be on about 14 Feb
2017, stood at 2.411 m sq km yesterday so 121,000 sq km above that 27
Feb 1997 record as of yesterday

monthly news bulletin from the source of this data
http://nsidc.org/arcticseaicenews/

16.293 million sq km +going for 07 Feb
Global extent anomaly (normalised) +going at -2.193
The "all-time" minimum Antarctic sea-ice looks to be later Feb 2017,
stood at 2.411 m sq km yesterday so 121,000 sq km above that 27 Feb 1997
record as of yesterday .
Same figure as yesterday, something broken away compensating for normal
ice loss? perhaps a larger than recent daily depletion figure tomorrow,
ie difference between are and extent determination

The NPIR chart from Japan has been showing a daily decrease of 0.01 M sq km over the last few days, compared with 0.1 M sq km per day during January. https://ads.nipr.ac.jp/vishop/#/extent

3/2/17 2.38
4/2/17 2.37
5/2/17 2.36
6/2/17 2.35
7/2/17 2.36

Their Antarctic sea ice extent actually increased yesterday. Just another example of the chaotic nature of sea ice extent!

On 08/02/2017 14:51, N_Cook wrote:
On 07/02/2017 14:55, N_Cook wrote:
16.283 million sq km +going for 06 Feb
Global extent anomaly (normalised) +going at -2.236
The "all-time" minimum Antarctic sea-ice looks to be on about 14 Feb
2017, stood at 2.411 m sq km yesterday so 121,000 sq km above that 27
Feb 1997 record as of yesterday

monthly news bulletin from the source of this data
http://nsidc.org/arcticseaicenews/

16.293 million sq km +going for 07 Feb
Global extent anomaly (normalised) +going at -2.193
The "all-time" minimum Antarctic sea-ice looks to be later Feb 2017,
stood at 2.411 m sq km yesterday so 121,000 sq km above that 27 Feb 1997
record as of yesterday .
Same figure as yesterday, something broken away compensating for normal
ice loss? perhaps a larger than recent daily depletion figure tomorrow,
ie difference between are and extent determination

16.294 million sq km +going for 07 Feb
Global extent anomaly (normalised) +going at -2.052
The "all-time" minimum Antarctic sea-ice looks stood at 2.409 m sq km
yesterday so 119,000 sq km above that 27 Feb 1997 record of 2.290
million , as of yesterday. Whether a record Antarctic minimum for that ,
this month, who knows

On 09/02/2017 14:55, N_Cook wrote:
16.294 million sq km +going for 07 Feb
Global extent anomaly (normalised) +going at -2.052
The "all-time" minimum Antarctic sea-ice looks stood at 2.409 m sq km
yesterday so 119,000 sq km above that 27 Feb 1997 record of 2.290
million , as of yesterday. Whether a record Antarctic minimum for that ,
this month, who knows

16.298 million sq km +going for 09 Feb
Global extent anomaly (normalised) -going at -2.116 million
The "all-time" minimum Antarctic sea-ice looks stood at 2.397 m sq km
yesterday so 107,000 sq km above that 27 Feb 1997 record of 2.290
million , as of yesterday. On track for a satellite-era record all-time
minimum about 19 Feb 2017

"N_Cook" wrote in message news
On track for a satellite-era record all-time minimum about 19 Feb 2017

Hmm, 2-3 weeks to go of course but not sure that there'll be a new Antarctic
record this year, seems to have asymptoted for now at least. Problem seems
to be that something like 90% of the Ant sea-ice does melt each year and the
remaining 10% is - for whatever reason (thickness, local climate??) -
fairly stubborn.

On 10/02/2017 15:04, JohnD wrote:
"N_Cook" wrote in message news
On track for a satellite-era record all-time minimum about 19 Feb 2017

Hmm, 2-3 weeks to go of course but not sure that there'll be a new
Antarctic record this year, seems to have asymptoted for now at least.
Problem seems to be that something like 90% of the Ant sea-ice does melt
each year and the remaining 10% is - for whatever reason (thickness,
local climate??) - fairly stubborn.

On the other hand even if that much heralded ex-Larsen C iceberg breaks
away it would only represent 1/2 to 1/3 of the daily area decrement of
Antarctic sea-ice of the last couple of weeks. ie even at this
asymptotic extreme, that calving event that would no doubt be splashed
across the world media , would hardly be noticeable in this metric.

On 10/02/2017 15:04, JohnD wrote:
"N_Cook" wrote in message news
On track for a satellite-era record all-time minimum about 19 Feb 2017

Hmm, 2-3 weeks to go of course but not sure that there'll be a new
Antarctic record this year, seems to have asymptoted for now at least.
Problem seems to be that something like 90% of the Ant sea-ice does melt
each year and the remaining 10% is - for whatever reason (thickness,
local climate??) - fairly stubborn.

1994 seems to be the only comparable year for such a slow tail-off, but
much later , leaving "headroom" for an inflexion to a proper minimum?

"N_Cook" wrote in message news
1994 seems to be the only comparable year for such a slow tail-off, but
much later , leaving "headroom" for an inflexion to a proper minimum?

I'm certainly not implying that further melting might not occur, just that
the existing curve does rather have the look of a fairly flat-bottomed
minimum that might - at least to within 2-3% - have already been reached.

Re Larsen C: As per my previous comment, I'm pretty sure that this doesn't
count as sea ice and so wouldn't be included in the total. But I think you
were probably more making the point that it would generate disproportionate
publicity - I agree, though that said, because the Antarctic sea ice minimum
is always pretty low (relative to its max) any minor new record minima are
probably less notable. It's the contrast with the higher levels of a year or
two back that are interesting, along with records in total sea ice
extent/area.