On data losses -vs- geography in Cowtan and Way 2013: data dropout may account for most of the recent observed differences

At Climate Audit, Roman M. has a very interesting analysis that shows the surface grid cell losses from HadCRUT4 in C&W. It hones in on the issue of why the…

NASA Announces New Record Growth Of Antarctic Sea Ice Extent

Researchers have measured a new record for sea-ice extent in the Antarctic. Why the white splendour is extending there while it is rapidly disappearing in the Arctic is a mystery.…

Sea Ice News Volume 4 Number 6: Arctic sea ice has most definitely turned the corner – Maslowski is falsified

Plus notes on the ARCUS sea ice forecasting contest As I pointed out on September 16th in Sea Ice News Volume 4 Number 5: No ice free Arctic this year…

Sea Ice News Volume 4 Number 5: No ice free Arctic this year – it appears that Arctic sea ice has turned the corner

It looks like the Maslowski Countdown has ended early and there will be no “ice free Arctic” as predicted this year. From NSIDC, which has a 5 day average in…

Arctic Ice and the DMI deficit

There’s been some interest in these before and after graphs highlighted by the blog “sunshinehours” here. Arctic Sea Ice Not As Bad As They Claimed??? DMI To me it looked like…

Sea Ice News Volume 3 Number 14 – Arctic refreeze fastest ever

After all of the news about a minimum record ice extent last month, this is interesting. As we know when water loses its ice cover, it allows a lot of…

Sea Ice News Volume 3 number 13 – 2012 Arctic sea ice minimum reached, it's all gain from here

I’ve been watching the JAXA sea ice data on the WUWT sea ice page intently for the last few days. Click to enlarge. I was ready to call the minimum…

Sea Ice News Volume 3 number 12 – has Arctic sea ice started to turn the corner?

Nothing definitive, but interesting. The area plot above is from NANSEN. The extent plot also shows a turn:

Sea Ice News – Volume 3 Number 11, part 2 – other sources show no record low Arctic ice extent

Earlier today in part1, I posted about the new record low claimed by NSIDC: Sea Ice News – Volume 3 Number 11, part 1 – new Arctic satellite extent record.…

Sea Ice News – Volume 3 Number 11, part 1 – new Arctic satellite extent record

PART1 – (part 2 comes later today is NOW ONLINE HERE) I’ve been noting with some humor the anticipation of a new Arctic sea ice extent minimum in the Alarmosphere.…

Sea Ice News – Volume 3 Number 10 – ARCUS August Sea Ice Outlook posted, plus worries over Arctic storm breaking up sea ice

In the latest ARCUS Sea Ice Outlook, WUWT, Stroeve (NSIDC), and Meier (NSIDC) agree at 4.5 million square km. Whether those values turn out to be high due to the…

Sea Ice News – Volume 3 Number 8 – meltwater hues, or blues?

WUWT commenter Caleb writes on 2012/07/20 at 7:53 am Check out the “North Pole Camera” on the WUWT “Sea Ice Page.” Both Camera #1 and Camera #2 show lovely summer…

Sea Ice News Volume 3 Number 7 – The next ARCUS Sea Ice Outlook forecasting poll for 2012 is online

NOTE: Poll closes at 12PM PST, Thursday, July 5th. First, in case you missed it over the weekend, the WUWT Sea Ice page has gone through an upgrade. A number…

The Guardian's ridiculous claim of 75% Arctic sea ice loss in 30 years – patently false

Reposted from “Haunting the Library” (well worth a bookmark), another clueless journalist combined with an artist/activist makes The Guardian look pretty darned stupid. Five minutes or less of checking would…

Sea Ice News Volume 3 Number 6 – Sea Ice Outlook forecasting contest for 2012 is online

First some news on the status of the WUWT Sea Ice Page. The JAXA imagery, which has been DOA ever since the failure of the AMSRE instrument on the AQUA…

Sea Ice News Volume 3 Number 5 – SEARCH Sea Ice Outlook forecasting contest for 2012

The Arctic sea ice extent forecasting contest is on again.  As before I’ll allow readers to submit their best estimates in a poll, and I’ll submit those results as we’ve…

Yet another error in NSIDC graphs?

UPDATE: problem solved, see below. I wonder if NSIDC actually looks at their own output from day to day? I know that sounds harsh, but the reality is that bloggers…

Another sea ice record in the Bering Sea plus April sea ice summary

National Weather Service, Anchorage Forecast Office issued this today: NOAK48 PAFC 032215 PNSAFC PUBLIC INFORMATION STATEMENT NATIONAL WEATHER SERVICE ANCHORAGE AK 215 PM AKDT THU MAY 3 2012 …RECORD SEA…

Sea Ice News Volume 3 Number 4: NSIDC Arctic sea ice extent touches the normal line

There was a lot of controversy leading up to this moment, as we covered previously on WUWT where NSIDC put a new trailing average algorithm online with no notice, and…

NSIDC fixes their Arctic Sea Ice graphing problem

As I mentioned yesterday, NSIDC had an oops moment, but with the help of skeptical blogs, was notified of the problem and responded timely and appropriately. They posted this update…

NSIDC's oops moment – uncoordinated changes make for an interesting 24 hours

Many of you are probably aware of some strange goings on over at The National Snow and Ice Data Center (NSIDC) with their Arctic Sea ice graph, specifically, this one…

Sea Ice News Volume 3 Number 3 – Beaucoup Bering Sea Ice

NASA reports in Bering Sea Teeming with Ice that “…the Bering Sea has been choking with sea ice. ” acquired March 19, 2012 download large image (12 MB, JPEG, 6800×8800) acquired…

Sea Ice News Volume 3, #2

In today’s report Arctic Sea Ice on the rise again, presently in the range of normal levels Antarctic Sea Ice is at slightly above normal levels Why is early satellite…

Sea ice variability within and outside the Arctic Circle

The essay below is a result of some collaboration between Jeff Condon and myself. I’ve been wondering for quite some time if there was any trend difference between the truly…

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