WUWT readers may recall last week that we had an excellent guest analysis by Bob Tisdale titled:
Ocean Heat Content: Dropping again
Easy come, easy go. The data has been changed. Read on – Anthony
NODC’s CORRECTION TO OHC (0-700m) DATA
Guest Post by Bob Tisdale
I was advised today (Thanks, Fred) that the NODC has revised their Ocean Heat Content data. A quick check of the KNMI Climate Explorer News webpage…
http://climexp.knmi.nl/news.cgi?someone@somewhere
…reveals that it was revised on October 15, 2009 at KNMI.
And a check of the NODC data…
…shows that it was corrected on 10/15/09.
Dr. Geert Jan van Oldenborgh writes, “There was an error in the last 3-month data point of the NODC ocean heat content dataset, as anyone who made a map of the data could see. The problem has been fixed at NODC (thanks Gavin, Tim).”
Apparently the NODC hadn’t bothered to plot the data prior to posting it on September 14, 2009, or hadn’t thought there was a problem until…
Here’s a gif of the correction
http://i36.tinypic.com/2coomlw.gif
NODC CORRECTION
Thanks, Gavin and Tim.
Hmm, I’ll have to go back and update the “ENSO Dominates NODC Ocean Heat Content (0-700 Meters) Data” post to make sure the ENSO-induced step changes are still there and verify the “North Atlantic Ocean Heat Content (0-700 Meters) Is Governed By Natural Variables” hasn’t changed, too.
H/T to Fred.
############
UPDATE (October 15 @ 5:40PM):
After I posted the above, I found that Dr. Geert Jan van Oldenborgh had emailed me to notify me of the correction. I have received his permission to reproduce his email:
Dear Bob Tisdale,
please note that NODC discovered that they had accidentally posted the wrong version of their last file (apr-jun2009), a preliminary version with most data still missing had somehow made it to their web site. A quick look at the map for that quarter showed that there were hardly any anomalies visible and big anomalies in the North Atlantic and Pacific did not persist from the previous quarter, so the data were clearly suspicious. This mix-up has been fixed tonight (Dutch time) at NODC and in the Climate Explorer. A corrected version of the average heat content is attached, the value of apr-jun2009 is now more in line with the values of previous quarters.
Greetings from chilly Holland,
Geert Jan
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Ecotretas: You noted Geert Jan’s weather report. He includes one at the end of each email.
tallbloke: You wrote, “I’m thinking it’s the other way about. Maybe the incorrect preliminary data was put out as a teaser to get the ‘denialosphere’ buzzing, then correction comes and the warmista can take pot shots at us for being unscientific and jumping the gun.”
But that really show shoddy workmanship on their part. Also, it backfires because I get to repost the comparison of the GISS prediction to the observed data.
http://bobtisdale.blogspot.com/2009/10/nodc-corrections-to-ocean-heat-content.html
And that graph doesn’t need a closing comment.
http://i37.tinypic.com/i6xtnl.png
And when things settle down, I’ve got another planned post about the poor GISS prediction. I’ll try to keep it visible.
Regards
Does anybody have a realistic estimate of the margin of error for any of these measurements?
Is the process for gathering, reporting, recording the data well documented? Has it been audited?
Why is it we have more regulations for how business must record and report their data than we seem to have for most scientific and government entities?
jmrSudbury: You wrote, “If they only corrected the last 3 month datum point, then why does the blink comparator gif show a drop in a peak value in early 1980, 1996, 1999, and 2002 among other points?”
There were a few very small earlier changes in some of the basin subsets. It’s an “evolving” dataset, just like GISTEMP and CruTEMP. If you want, you can compare the “before and after” graphs. I’ve just posted the corrections. I’m not going to provide comparisons of each basin, sorry.
Here’s the BEFORE post:
http://bobtisdale.blogspot.com/2009/10/update-of-nodc-levitus-et-al-2009-ohc.html
And here’s the AFTER post:
http://bobtisdale.blogspot.com/2009/10/nodc-corrections-to-ocean-heat-content_16.html
0-700m is not the best set of data to get a sense of short term fluctuations as there are oceanographic arguments in the literature that suggest the first 200m is the key depth where the global warming signal is locked in – with little exchange at depths greater than this (am I right?) – if you take the data down to 700m you are going to get a signal from deeper ocean mixing and dilute the ‘warming’ or ‘cooling’ signal from the top 200m – does anyone know if the top 200m data is available separately?
I’m not sure what pomulgated this change. By the wording it sounds as if they used a value from a different time period in the first result. But some posters seem to be implying that the data has been “adjusted”. That is a very different thing.
Anyone got any idea what exactly is going on?
Peter Taylor (06:03:33) :
0-700m is not the best set of data to get a sense of short term fluctuations as there are oceanographic arguments in the literature that suggest the first 200m is the key depth where the global warming signal is locked in
Peter, I ran some calcs which show that the average temperature rise of the top 700m is consistent with the increase in SST 1993-2003. However, the figure I arrived at for the total excess energy retained in the ocean for the period, which I calculated from the satellite altimetry and the estimated steric contribution, is in excess of the Levitus et al figure. It is my belief that they have currently underestimated the energy content to downplay solar contribution and come up with a figure close to the 1.7W/m^2 forcing for co2. Levitus et al 2000 is a lot nearer the mark. You have my email address if you want more details.
Moving from sea to land, snow’s hit someof Europe’s resorts early (Again!)
http://www.telegraph.co.uk/travel/snowandski/6338140/Snow-arrives-in-Europes-Alpine-resorts.html
The paper copy of today’s The Daily Telegraph, notes
“Unseasonably early snow storms have blanketed much of central Europe..”
“Austria’s Alps have had as much as 35 inches of snow in the past two days, prompting several ski resorts to open their slopes for the earliest season start on record>
Well have you noticed that we “arm chair” scientists who are merely applying our fundamental science skills to a problem area where the same physical laws still apply; are constasntly berated; or is that derated, by those who have been formally trained in the ancient religious ritual called “Climatology”.
We are not qualified to comment, since we have been baptised with the dogma.
So how come it is these same formally trained experts who are constantly screwing up, and issuing reports at taxpayer’s expense, containing false data.
It seems that about half of the issues that seem to come up on Anthony’s blog here are related to official government sanctioned screwups.
Any minimum wage earner can read a thermometer; well you don’t even have to read a thermometer anymore; they can read themselves, and directly report the correct temperature; and they can be manufactured by the gazillion for a few pennies.
But then of course comes the AlGorythm. Those temperatures have to be “treated”; it’s about like the tax code. Workers keep adding on layer after layer of bandaids to get the data to “perform” tot their liking.
Take the Hubble Space telescope for example; containing one of the most accuately manufactured optical elements; if not the most, ever built. Except it was built with great exactitude to the wrong shape; and the company that built it knows who they are.
Subsequent missions to Hubble have layered on band-aids to try to correct for that snafu; and with considerable success. The instrument gives spectacular results.
But! Like the Mona Lisa in the Louvre; the Hubble Telescope Primary mirror has a twin. Except this one was built by the Eastman Kodak Company; except they had the temerity to build it to the correct shape instead of the wrong shape. So Hubble’s twin languishes somewhere, gathering dust while a usurper functions in a half pi shadow of the original intent. Yes modern instruments have been added to increase the capability; but that original piece of optical junk should have been replaced by the twin years ago. Maybe the ersatz mirror could be used for a bird bath; perhaps outside the corporate headquarters of the company that made it.
And let’s not forget the space craft that crashed on Mars, because somebody who is an accredited expert in his field (peer reviewed no doubt), used his wife’s Tailer’s tape to measure some critical component.
I once heard of some pieces of an alien space craft that were handed down from father to son; made out of 99.99% pure Aluminium, in the form of squares and circles. A PhD “Scientist” reported that the pieces were “Exactly” 6 x 6 x 1 mm and the round ones were 6 mm diameter (exactly). Well I told the reporter who was running with this story, that no scientist worth his salt would say the pieces were exactly 6 x 6 x 1 mm, without giving some error tolerance; and why would space aliens be using our completely arbitrary metric system of units. The mystery aluminum was also much “stronger” than normal, since you couldn’t bend the pieces with your fingers, and Alcoa Scientists said you should be able to if they were 6 x 6 x 1 mm. So clearly it wasn’t terrestrial aluminium, even though mass spec could find almost not impurities in the material.
So the reporter (lady) checked back with the PhD with my objections; and he finally admitted that he had “measured” the pieces with his ELECTRON MICROSCOPE ! So his yard stick was dependent on the gain of amplifiers and such like. He finally took my suggestion and tried an ordinary micrometer good to one hundredth of a mm; and reported the joyous revelation that the mystery spacecraft pieces were now EXACTLY 6.35 x 6.35 x 1.59 mm.
Well to within the 1/100 mm precision of the micrometer. The Reporter and the “Scientist” were now overjoyed to have the correct dimensions, and see they no longer intimately linked to our arbitrary metric system; proving they really were from outer space.
Well no not really I pointed out to them. Your space junk parts are now (almost exactly) 1/4 x 1/4 x 1/16 inches; and what’s more instead of having a 6 : 1 length to thickness ratio; they were now only 4 : 1 and now much stiffer than if they had been six to one ratio. So now all of a sudden the anomalous aluminium propertioes are removed, and the materials is now just ordinary 0.062 inch 1100 alloy Aluminum sheet; that you can buy in any harware store.
And the pieces themselves were most likely made in America; last bastion of the rod/stone/fortnight system; and probably simply squares and round holes puched out of a sheet to make a grill for the back of a refrigerator or something; the round holes being for some mounting bolts.
But this reporter and her “scientist” had a large (worldwide) audience convinced she was holding some alien space craft parts. Really ! who in their right mind building an interstellar spacecraft is going to make any part of that machine out of 1100 alloy aluminum; a material of such poor mechanical strength properties, that you wouldn’t allow a molecule of it to contaminate your spacecraft, where weight is a major issue.
Well I could write a whole encyclopedia of such snafus by accredited scientists. I won’t embarrass the chap by naming him; he actually does have a good reputation in his past career; and he got roped into a pig in a poke exercise.
So to all of those readers and posters here; who get upset when these constant revelations of dropping the ball turn up; keep on trusting your instincts, and don’t take everthing for granted that is presented to you with the air of authority.
And to the Tisdales, and Macintyres who keep their ears to the rail to hear what’s coming down the track; we spectators appreciate your efforts to keep them honest. (well this one does anyway)
“””” We are not qualified to comment, since we have been baptised with the dogma. “””
>>> not <<<
Peter Taylor: You asked, “does anyone know if the top 200m data is available separately?”
Not in a simple format.
Vincent: You asked, “Anyone got any idea what exactly is going on?”
They posted the wrong data. According to Geert Jan at KNMI, it was very incomplete. And there are some minor updates taking place in the older data. Nothing earthshattering. The big item was that they posted the wrong April to June 2009 data.
John Galt: You asked, “Does anybody have a realistic estimate of the margin of error for any of these measurements?”
The standard errors for the global and individual ocean datasets are listed at with the data at the NODC website:
http://www.nodc.noaa.gov/OC5/3M_HEAT_CONTENT/basin_data.html
Bob Tisdale (09:27:15) :
I’m not looking for their estimate of their errors, but an independent review. Please see my entire post for details.
Thank you
John Galt: You wrote, “I’m not looking for their estimate of their errors, but an independent review.”
Never heard of one. Never heard of an independent audit of other climate databases such as ERSST.v2 or ERSST.v3b SST data.
Oh yeah… and don’t forget that the NOAA recently began adjusting all satellite temperature measurements for an “innate cold bias.” They are now relying on land based observations… from 50 year old weather stations that sit in/near 15 year old parking lots… and statistics (figures lie and liars figure) to correct state of the art space based measurements of OCEAN TEMPERATURES.
The mind boggles
DaveE.
Sorry mate but you’re probably wrong. The World has certainly cooled over the last 10 years!
Darn: You wrote, “Oh yeah… and don’t forget that the NOAA recently began adjusting all satellite temperature measurements for an ‘innate cold bias.'”
A NOAA link for that, please. Thanks.
Once again we see that the data is not credible. When unusual readings (colder that expected) keep getting purged from the data and missing data is filled in (made up) by computer programs we cannot claim to know anything very well. this means that all of the aggregate constructions need to be dumped as scientifically invalid and go back to looking at local temperatures to see what they tell us about the changes that are impacting people in various areas.
But when we do that we find that people in urban areas are experiencing warmer temperatures, particularly in winter and at night. We see plants inside the city limits bloom several days or weeks than those outside of the suburbs. We see open water in inner city areas allow for some birds to avoid flying south for the winter. Over most of North America we see that temperatures have warmed up since the PDO flipped into a warm phase in the late 1970s but that they are not as warm as the 1930s. We see Alaska experiencing a stepwise increase in temperature in the late 1970s after being brutally cold in the previous three decades. And if we look to the record temperatures we do not see all that many highs in the most recent decade but quite a few in the 1920s, 1930s and 1940s.
What we do not see is catastrophic warming, dangers to polar bear populations (which have increased), major problems with global ice cover, etc. The fact that the AGW hype is a scam perpetuated by people who make their living off of it should be obvious to most people by now. I suspect that eventually even the politicians will get it.
I think that this is one of the most important features of the blogosphere that the MSM is missing. If you stop and think for a moment to compare the resources of the two groups it is a no contest situation in favor of the bloggers.
A major media news room might have 2 -3 people that focus on a given issue, they have at their disposal a small research staff who in turn have a Rolodex of “expert” sources that they contact on the topic numbering in the 1- 10 range.
A highly visible blog page might have 10,000 – 1,000,000 readers. By simple force of numbers, a fraction of those readers will be highly experienced in dozens or hundreds of specialties that have a bearing on the question at hand.
Regular contributors here on wattsupwiththat see it on a daily basis, where some guy who spent 25 years working in some obscure specialty, chimes in on a topic and points out a reference, or a historical fact that the MSM would need to invest a thousand man hours of research to uncover. Obviously if they had no clue the fact existed, they would have no incentive to look for it, simply due to the deadline imperatives of their business. If they cannot turn up an important fact or resource in a few hours of searching, the editor will probably direct them to drop that line of investigation and look elsewhere for support of their story.
On the other hand a blog by its very nature draws a crowd of folks who by their very nature are interested in the topics discussed, and many of them devote enormous amounts of time digging through obscure papers, and following faint trails of information.
The modern blog is more and more resembling the “borg collective” model where all knowledge is known by someone some where, and the simple geometric growth of contacts and experience of a blog followed by thousands of interested observers means there is a very high likelihood that someone on this blog knows on a first hand basis, almost everyone in the computer literate world.
Sort of the six degrees of separation game where you are probably only a few personal associations away from anyone in the world.
It is simply a very straight forward application of geometrical growth. If everyone on this blog knows a hundred people, than the readership of this blog has a direct connection to :
(blog readership x 100 – duplicates) on only the first layer associations
Multiply that by one or two layers and you probably have a connection to every college educated person in the world.
Larry
” MattN (16:32:50) :
Still not warming….
”
Yeah… there is definitely not an upward trend in that graph….
..sigh..