Tag Archives: Extent

Watts Up With the Maximum Trend?

The self proclaimed “world’s most viewed site on global warming and climate change”, otherwise known as the “Watts Up With That?” blog, recently published an article entitled “Arctic Sea Ice Appears to Have Reached Maximum And Other Ice Observations”. Since I’ve been speculating about the date of the 2014 maximum Arctic sea ice extent myself I avidly read the article but found myself ultimately somewhat perplexed. There were lots of graphs and charts displayed, but there was no sight or mention of what seems to me the most relevant one of all. The long term trend. Here is an expurgated version of my attempts to bring this oversight to the attention of the Watts Up With Thatters:

Us:

A "dull" comment about Arctic sea ice trends
A “dull” comment about Arctic sea ice trends

Them:

Re: Michael Jennings says:
March 26, 2014 at 7:07 am

[snip . . this is dull. Put some content into your contributions or you are just trolling . . mod]

Us:

At the risk of repeating myself, here’s the latest dull content out of NSIDC:

Do you see the blue line heading for the bottom right?

[snip.. lots of dull references to Antarctic sea ice and “Real Science” removed.. mod]

Them:

Snow White needs to get up to speed on the Scientific Method: skeptics have nothing to prove.

Rather, the onus is on the alarmist crowd to provide scientific evidence showing that their CO2/cAGW conjecture is true. They have failed miserably.

But there is no scientific evidence supporting their belief in manmade global warming. None at all. Every last climate model has failed. They were all wrong.

The alarmist crowd is fixated on Arctic ice, instead of on global ice cover. Why? Because that is their last forlorn hope; every other climate scare has been debunked. Well, it’s time to debunk the ‘disappearing Arctic ice’ scare, too:

Global sea ice is at it’s 30-year average [the red graph – click in chart to embiggen]. We already know about the polar see-saw, in which the NH and SH poles balance each other out. That effect can be clearly seen in the global ice chart above.

There is nothing either unusual or unprecedented happening. What we observe now has happened before, repeatedly, and to a much greater degree. Rational folks understand that. It is called the climate Null Hypothesis, and it has never been falsified. The Null Hypothesis is a corollary of the Scientific Method. So is the fact that the onus is on those who produce the catastrophic CO2/AGW conjecture, to suport their belief with scientific evidence.

But there is no evidence proving that Arctic ice is in unprecedented decline. None at all. There is no evidence to prove that the current Arctic ice fluctuation is anything other than natural climate variability. Occam’s Razor says that natural variability is by far the most likely explanation.

The Arctic ice scare is just the same as all the other climate scares. It is promoted by religious True Believers, who expect everyone to share in their Chicken Little panic.

But that only works on those who are ruled by emotion, and fright is an emotion. Scientific skeptics, OTOH, are logical, and therefore they are unaffected by the silly ‘Arctic ice’ scare.

Us:

So to summarise, you cannot muster a single chart to refute my assertion about Arctic sea ice decline, let alone “hundreds”.

For your edification, and for that of the writer of the original article who for some strange reason neglected to include a graph showing the long term trend in Arctic sea ice maximum extent, here is one I prepared earlier:

Provisional NSIDC annual maximum extent graph for 1979 – 2014
Provisional NSIDC annual maximum Arctic sea ice extent graph for 1979 – 2014

Them:

From a comment on a different thread on WUWT, on April 10, 2014 at 3:33 am (WUWT time)

I’m sorry Snow White (or Mr Hunt, if you prefer), but I think that a little courtesy would be in order. I’ve read every word on the link you’ve provided, and the central theme of your original post was that “there was no sight or mention of what seems to me the most relevant one of all. The long term trend [of Arctic sea ice]“. You described more than one attempt to bring this deficit to the attention of WUWT.

Given that Michael D posted on your page at April 9, 2014 at 4:01 pm, politely pointing out that the WUWT sea ice page has just such data presented, it would seem a basic courtesy to either acknowledge his assistance (in this blog or yours) and either thank him, or explain why graph does not answer your criticisms.

I acknowledge that your arguments seem to have moved on to volume now, but they have been addressed by others, and better than I could have done. As an aside, I suppose I could run a blog with limited data about Antarctic sea ice coverage and volumes. I’m sure that I would be criticised, with comments explaining that I was looking at the mural through a microscope, and that the Antarctic buildup cannot be considered in isolation. I think that such criticism would be valid – your thoughts?

Us:

As you can see from the historical record, I asked on more than one occasion for someone to supply a link to “A long term (let’s say 30 years or more) graph for any measure of Arctic sea ice “quantity” showing anything other than a trend in the direction of the bottom right hand corner.” Nobody did. Nobody suggested looking at the WUWT sea ice page either, presumably because no graphs fitting my description can be found on there.

Q.E.D. ?

Them:

 We’ll keep you posted!

A Conversation With David Rose

Perhaps “conversation” is somewhat too strong a word? We have somehow managed to engage the Mail on Sunday’s top investigative journalist (AKA David Rose) in a debate about sea ice on Twitter. For some strange reason he tried to change the topic from the Arctic to the Antarctic!

Us:

Them:

 

Us:

Meanwhile we gatecrashed another debate that David Rose was gatecrashing, about a topic we have some experience with.

Them:

Us:


We’ll keep you posted!

Our Guardian’s Sleeping on the Job

Here’s a copy of an email I sent to James Randerson et.al. over at The Guardian shortly after my mail to The Mail earlier this week:

Us:

Shock news about Arctic sea ice!

Hello James,

Further to our telephone conversation just now, here is the latest “shock news” from the Arctic, hot off the presses down here at Ivory Towers:

https://greatWhiteCon.info/2014/03/the-arctic-sea-ice-recovery-vanishes/

Particularly in view of the recent inclement weather in this neck of the woods, I thought perhaps you might be interested in taking a closer look at the most recent evidence concerning this “hot topic”?

I hope you enjoy your meeting!

Best wishes,

Jim Hunt
AKA “Snow White”!

Them:

Hi Jim,

Thanks for drawing our attention to the blog. It is not a topic that we’re planning something on imminently, but it is something we are certainly keeping an eye on and will come back to in future.

Many thanks for your interest.

Best wishes,

James

Meanwhile over on Twitter:

Us:

 

Them:
We’ll keep you posted!

Some Sceptical Questions

With the able assistance of some of the regular readers of Steve Goddard’s so called “Real Science” blog I have drawn up a checklist of questions to answer should you (or any “sceptics” you may be aware of) be suffering from the delusion that the sea ice in the Arctic is “recovering” or “rebounding”:

Us:

1. Is the NSIDC daily Arctic sea ice extent number for March 8th 2014 the lowest on record for that day of the year? Yes or No?

2. Is the Cryosphere Today Arctic sea ice area number for March 8th 2014 the lowest on record for that day of the year? Yes or No?

3. Is the IJIS Arctic sea ice extent number for March 9th 2014 the lowest on record for that day of the year? Yes or No?

4. What credible evidence can you provide to show that “The Arctic is getting colder”?

5. In what way has the NSIDC’s data been “contaminated by Mann”?

6. Where might one find “empirical data that hasn’t been contaminated” if not from the likes of NOAA/NASA/JAXA et. al.

7. How do you define “The Arctic”? [2014-3-12 16:53]

8. How much sea ice do you suppose will be left in the Gulf of St. Lawrence by September? [2014-3-12 20:26]

9. Which version of “the [thickness/volume] truth” do you choose to believe? [2014-3-14 09:30]

10. When was it that the DMI “changed the way they read/interrupt coastal features [which] they incorporated into their extent/area numbers”? [2014-3-15 15:08]

11. Why have we been accused of “a lie” and “put on ignore”? [2014-3-16 15:12]

12. Please be so good as to provide us with a link that describes “the modeling used by NSIDC to ‘create’ these numbers” [2014-3-20 13:00]

ftp://sidads.colorado.edu/DATASETS/NOAA/G02135/north/daily/data/NH_seaice_extent_nrt.csv

No reply to any seven eight nine ten eleven of those questions as yet.

Them:

In answer to question 7 Steve Goddard “says”

NSIDC visualisation of Arctic sea ice daily extent for March 10th 2014
NSIDC visualisation of Arctic sea ice daily extent for March 10th 2014

Then a “Real Scientist” asks a sensible question:

Do NSIDC and DMI define the Arctic differently? If so, by how much?

Us:

We say:

1. Yes Dave.

2. Here’s a clue:

OSI Arctic sea ice concentration for March 11th 2014
OSI-SAF Arctic sea ice concentration for March 11th 2014

We’ll keep you posted!

New Mail for The Mail

Now seems like an entirely appropriate time to bring the latest “Shock News!” from the Arctic to the attention of the “mass media” here in once Great Britain. Here’s a copy of an email I sent to John Wellington over at The Mail earlier today:

Us:

Re: PCC – Global cooling in an ideal world

Hello again John,

Further to our previous correspondence on this controversial topic here is the latest “shock news” from the Arctic, hot off the presses down here at Ivory Towers:

https://greatWhiteCon.info/2014/03/the-arctic-sea-ice-recovery-vanishes/

In view of the recent inclement weather in this neck of the woods, perhaps you could forward it on to one of your finest investigative reporters for me?

Best wishes,

Jim Hunt

Them:

It’s now March 15th 2014, and this morning I received a “Dear Jim” note from John:

Dear Jim,

Nice to hear from you and I trust you were not hit by the West Country floods, climate-influenced or not.

I have discussed your message with a colleague who is interested in these things and we conclude that March is a little early in the year to be drawing significant conclusions. I have been shown some different graphs that appear to show 2014 is not dissimilar to the last few years. I am attaching these for your information.

Best regards

John

S_stddev_timeseries N_bm_extent cryo_compare_small ssmi1_ice_ext_small

Us:

Dear John,

Thank you for your kind words. We’re situated halfway up Haldon, so we avoided the worst of the inclement weather. The top of the hill took a bit of a battering however.

The entrance to Haldon Forest Park on February 24th 2014
The entrance to Haldon Forest Park on February 24th 2014
Haldon Forest Park on March 8th 2014
Haldon Forest Park on March 8th 2014

Our garden suffered a bit too, but thankfully the house was OK.

A new spring gushes from the side of Haldon Hill on Valentine's day 2014
A new spring gushes from the side of Haldon Hill on Valentine’s Day 2014

Others weren’t quite so fortunate:

http://econnexus.org/the-weather-report-from-soggy-south-west-england/

Regarding your own attachments, perhaps in the first instance you might ask your colleague to explain why he or she chooses to send you a NORSEX Arctic sea ice extent graph rather than one from the NSIDC, which I believe we established last summer is The Mail’s oracle on such matters? Please take a good look at the latest NSIDC equivalent to the Antarctic extent graph you sent me, which I attach for your convenience.

NSIDC Arctic sea ice extent graph for March 13th 2014
NSIDC Arctic sea ice extent graph for March 13th 2014

Whilst you’re at it perhaps you could also ask your colleague to answer at least the first three of these simple questions:

https://greatWhiteCon.info/2014/03/some-sceptical-questions/

You may also wish to pass on to your colleague the shock news that earlier this week the daily atmospheric carbon dioxide readings from Mauna Loa rose above 400 ppm almost 2 months earlier than last year?

https://greatWhiteCon.info/2014/03/our-guardians-sleeping-on-the-job/

Best wishes,

Jim

We’ll keep you posted!

Broadcasting House’s Million Square Kilometre Blunder

It has just been brought to my attention that the topic of Arctic sea ice was raised by Angela Rippon on the edition of “Broadcasting House” that aired on BBC Radio 4 on the morning of Sunday September 29th. In her review of that Sunday’s papers Angela had the following to say:

Them:

Tucked away at the bottom of a page in the Mail on Sunday is a piece saying that “The Arctic ice experts have made a million kilometer blunder“, and this is again using computers, and apparently the official source of information on polar ice caps have got it’s figures for the recovery of the Arctic cap wrong by a million square miles, and they say that this was actually a typo, it was a typographical error, and there are no plans to make a statement on the change because it was just an error in the data. So what data CAN we believe?

Us:

Obviously that’s my own transcript rather than an official one from the BBC. By all means listen to the programme yourself, and let me know if I’ve inadvertently got something wrong. According to the BBC’s “BH” page it will be available for download there for another 25 days.

Now obviously as soon as I’ve finished writing this article I’m going to amble over to the BBC web site to lodge a formal complaint, in which I shall suggest that Angela and the BBC’s “BH” team read this website from cover to cover, starting with this very article.

As a preliminary answer to Angela’s final question I would like to suggest:

Certainly not the Mail on Sunday’s, and not the British Broadcasting Corporation’s either, unless they correct this particular blunder quicker than you can say “Global COOLING!” whilst simultaneously sipping a piña colada by the side of Santa’s super new low albedo summer swimming pool!

Will The Telegraph Print the Truth in the Cold Light of Day?

I just received an emailed letter from the Telegraph’s Head of News, part of which reads as follows:

The Telegraph has looked into the matters you raise. As far as the points concerning ice extent are concerned, the incorrect information was derived from data published by the National Snow and Ice Data Center (NSIDC). The mistaken information was due to a typographical error, which the NSIDC only corrected after the article that incorporated it was published. We have since updated the online versions of the article and explained why this was necessary.

There is no mention in the letter of any “updates” or “corrections” being put into print. The Telegraph are thus telling much the same story as the Mail, which is of course wholly unsatisfactory when it comes to correcting the long list of “inaccuracies and misrepresentations” they have recently published regarding the sorry state of sea ice in the Arctic. This is how they’ve done it:

Them:

Hayley Dixon’s article entitled “Global warming? No, actually we’re cooling, claim scientists” from September 8th now starts as follows:

There has been a 29 per cent increase in the amount of ocean covered with ice compared to this time last year, the equivalent of 533,000 square miles.

In a rebound from 2012’s record low, an unbroken ice sheet more than half the size of Europe already stretches from the Canadian islands to Russia’s northern shores, days before the annual re-freeze is even set to begin.

The Northwest Passage from the Atlantic to the Pacific had remained blocked by pack-ice all year, forcing some ships to change their routes.

One ship has now managed to pass through, completing its journey on September 27.

with the following additional “explanation” at the end:

Update: As at the date the article was first posted it relied on information about ice extent from the Nasa-funded National Snow and Ice Data Centre (NSIDC). This information contained a typographical error which the NSIDC subsequently corrected. The article has been amended in line with the correct information.

In addition, we have amended our reference to the Northwest Passage following the successful traverse, completed on September 27 after our article was published, of the Danish bulk carrier Nordic Orion.

Us:

Should The Telegraph’s Head of News be interested in some slightly stale Northwest Passage news, here’s a picture published on econnexus.org on September 4th in an article linked to below, which takes a close look at the “pack ice” supposedly “blocking the North West Passage” on that date:

Sea ice concentration in the Northwest Passage on September 4th 2013, according to AMSR2
Sea ice concentration in the Northwest Passage on September 4th 2013, according to AMSR2

Them:

Geoffrey Lean’s article entitled “Global warming: Will the truth brave the cold light of day?” from September 13th now carries the following “explanation” at the bottom:

Update: After this article was published, a bulk carrier – the MV Nordic Orion – was able to pass through the Northwest Passage on its way from Vancouver to Finland.

Christopher Booker’s article entitled “The ice is not melting, yet still the scaremongers blunder on” from September 21st appears to be completely unmodified.

Us:

Here’s some extracts from my own (repeated) email to The Telegraph, to which they have also failed to respond satisfactorily (in my humble opinion!):

a) “An unbroken ice sheet more than half the size of Europe already stretches from the Canadian islands to Russia’s northern shores,”

Inaccurate – See: https://greatWhiteCon.info/2013/09/an-unbroken-ice-sheet/ for plenty of visual evidence of that.

b) “The Northwest Passage from the Atlantic to the Pacific has remained blocked by pack-ice all year, forcing some ships to change their routes.”

Inaccurate – See: http://econnexus.org/the-northwest-passage-in-2013/

c) “That has been enough to make a mockery of a much-publicised prediction, six years ago, by Prof Wieslaw Maslowski, of the Naval Postgraduate School in Monterey, California, that the Arctic would be entirely ice-free by 2013”

Inaccurate – See (and hear) https://greatWhiteCon.info/2013/09/shock-news-why-isnt-the-arctic-ice-free/ for visual and aural evidence of that.

d) “The ice is not melting, yet still the scaremongers blunder on”

Inaccurate – The ice is melting. See Geoffrey Lean’s article!

I can see that this particular story is going to run and run!

60 Per Cent of Nothing?

Our title today is an allusion to Bill Bruford’s “Five Percent For Nothing”, from the 1971 album “Fragile” by Yes. Here’s what the cover looks like:

Fragile cover art, by Roger Dean (image Wikipedia)

Them:

A chilly Arctic summer has left nearly a million more square miles of ocean covered with ice than at the same time last year – an increase of 60 per cent.

Us:

According to the NSIDC once again the numbers look like this:

NSIDC daily Arctic sea ice extent chart, highlighting September 7th 2013
NSIDC daily Arctic sea ice extent chart, highlighting September 7th 2013

The sums are obviously rather tricky, so we’ve enlisted the aid of a spreadsheet. Here’s what it reveals to us:

Metric Date 2012 2013 Increase
NSIDC Daily Extent (million km²) Day 249 3.558 5.236 47.2%
NSIDC Daily Extent (million km²) Sep 8th 3.523 5.179 47.0%
NSIDC Daily Extent (million km²) Aug 27th 3.94 5.632 42.9%
NSIDC Daily Extent (million km²) Aug 15th 4.845 6.159 27.1%
NSIDC Monthly Extent (million km²) August 4.71 6.09 29.3%

Verdict:

Whichever way you look at things, on a “same time last year” basis at least, the magic number of 60% seems to be out of reach. Whatever the arithmetic David Rose actually performed, whether mentally or on his pocket calculator, it would appear not to involve comparing like with like. We have asked David and the Mail on a number of occasions what numbers he started from and what calculations he performed. We have received no answers as yet.

Getting back to our title, when you start to look at Arctic sea ice volume instead of extent, 160% of almost nothing is still almost nothing:

Video courtesy of Andy Lee Robinson

Small print: We have yet to double check all the numbers in our simple spreadsheet. The NSIDC web site is still down today.

A Million Square Miles?

Let’s start at the very beginning. A very good place to start!

Them:

A chilly Arctic summer has left nearly a million more square miles of ocean covered with ice than at the same time last year – an increase of 60 per cent.

Us:

NSIDC Arctic Sea Ice News report for August 2012
NSIDC Arctic Sea Ice News report for August 2013

Verdict:

The Mail et. al. say “Nearly a million square miles”. When the floods in Boulder have receded the NSIDC will once again say “Just over half a million square miles”. Is that discrepancy sufficient to satisfy the Press Complaints Commission’s definition of “inaccurate, misleading or distorted information”?