Current

Sunday, August 03, 2008

Surface stations and data modelling

Posted by Devil's Kitchen at 8/03/2008 09:13:00 PM

Just because I was perusing surfacestations.org—the project to take pictures and assess the suitability of NASA GISS land temperature stations, which has now covered 43.73% of the network—I thought that I would bring you this comparison of two sites.

I would particularly like you to consider the siting of these temperature stations and then observe the temperature graphs associated with the stations.
Here is a well maintained and well sited USHCN station:


Graph is from NASA GISS - see it full size

Click [here and here] for complete site surveys of these stations

Here is a not-so-well maintained or well sited USHCN station:


Graph is from NASA GISS - see it full size

This site in Marysville, CA has been around for about the same amount of time, but has been encroached upon by growth in a most serious way by micro-site effects.

Let us remind ourselves that it is primarily these stations that NASA GISS, led by James Hansen, is using to justify stultifying our civilisation and from which the predications of doom are being extrapolated.

Here are a couple more stations that are on the GISS network. This first is from Lampasas, Texas, and was drawn to my attention by Climate Skeptic.
Via Anthony Watt is this temperature station in Lampassas, Texas, part of the USHCN and GISS data bases (meaning it is part of the official global warming record).


The temperature instrument is in the white louvred cylinder in the center. This installation is wrong in so many ways: in the middle of a urban heat island, near asphalt, next to a building, near car radiators, near airconditiong unit exhausts. Could we possibly expect this unit to read correctly? Well, here is the temperature plot:


The USHCN data base says that this station moved here in the year 2000. Hmmm, do you think that the temperature spike after 2000 is due to this site, or global warming. By the way, the GISS calls it global warming.

Hmmm. Now, surely these clever scientists have corrected for these problems, right? I mean, they would never use what is quite obviously erroneous data without correcting it, right? Because trillions of dollars rest on the advice that James Hansen and his merry men give. Er...
But James Hansen and others at the GISS defend this station and others to the death. In fact, the GISS extrapolates temperature trends not only for Lampasas but for hundreds of kilometers around this location from this one station. Hansen has opposed Anthony Watt's efforts to do a photo-survey of these stations, saying that his sophisticated statistical models can correct for such station biases without even seeing the station. OK, let's see how the adjust this station. Their adjustment is in red:


According to the GISS, the temperatures since 2000 have been just fine and without any bias that needs correcting. However, they seem to think that the temperature measurement in Lampasas in the 1920's and1930's (when Lampasas was a one horse town with no urbanization) was biased upwards somehow. Why? Well, we don't know, but based on this adjustment, the GISS thinks this site has LESS urbanization today in this picture than in 1900. The GISS adjustments have INCREASED the warming seen at this site. Uh, right.

I think there is some bias that needs correcting, and the place to start may be in the GISS management.

OK, does any one of you think that the adjustments that GISS has made here are right? Do you really think that this station has been utterly unaffected since its positioning here in 2000? Does anyone out there really, truly and honestly think that all of the years before 2000 need to be adjusted downward but that the records after 2000 need no adjustment at all? Oh, and anyone think that I am in the pay of the oil industry for showing you these figures?

Anyone? Bueller? Bueller?

And yet these are the numbers that GISS is using to predict this runaway global warming: no wonder that they are the only agency to maintain that there has been a warming trend over the last ten years. It would be a joke if it wasn't so fucking serious.

I know that there are some people out there who still don't get it, so let's keep on piling on the pain; here is a station in Miami that Climate Skeptic surveyed personally.
For #2, [my son] has posted two USHCN temperature measurement site surveys here and here. The fun part for him is that his survey of the Miami, AZ site has already led to a post in response at Climate Audit. It turns out his survey adds data to an ongoing discussion there about GISS temperature "corrections."


Out-of-the-mouth-of-babes moment: My son says, "gee, dad, doesn't that metal building reflect a lot of heat on the thermometer-thing." You can bet it does. This is so obvious even a 14-year-old can see it, but don't tell the RealClimate folks who continue to argue that they can adjust the data for station quality without ever seeing the station.

Of course, they can: these scientists are fucking geniuses, y'know—they can do anything. Hey! I've got a good game—do you wanna guess what the temperature record is like? Yeah?
Update: Here is the temperature history from this station, which moved from a more remote location away from buildings about 10 years ago. I am sure the recent uptick in temperatures has nothing to do with the nearby building and asphalt/black rock ground cover. It must be global warming.


Once again, I would like to remind you that this station is part of the official GISS temperature measurement record. I want you to bear that in mind as you observe the corrections, as supplied, from GISS data, by Climate Audit (which is, incidntally, written by Steve McIntyre, one of the men who kicked the shit out of the Mann et al. "hockey-stick" graph).
HOMGENIZED GISS DATA OVERLAID ON RAW DATA:


Notice that after the GISS homogeneity adjustment, the past temperatures go down, with the present acting as a hinge point, thus making the slope of the temperature trend rise. The new slope is purely artificial, and appears to be an artifact of data adjustment by NASA GISS on this rural station. This is the second instance of this happening, the first being seen in the GISS Lamapasas, TX data adjustment for homogeneity.

In both cases, the abnormal spike coinciding with a station move near the present time remains in the record, and that is what the homogeneity adjustment is supposed to catch and remove as I understand it.

Now, there is, apparently, an explanation for this. And you're going to love it...
In a comment on the subject, Steve Mosher offers an explanation:
In Hansen 2001 Hansen says he uses nightlights to determine if a station is Rural in the US and population everywhere else. Miles city population is less than 10K which makes it rural, BUT, nightlights ( satellite imagery taken in 1995) indicates a brightness factor for Miles of 26! effectively making it urban.

I concur, there appears to be a flaw in the GISS nightlight methodology and adjustment algorithm. I look forward to seeing GISS investigate, and if this problem is indeed verified, a dataset correction.

Yeah, right. Anyone seen those corrections yet?

So, now that everyone's had a look at the pretty pictures, here are a few points to consider: the first is that the "scientists" at GISS are either utterly incompetent or they are lying. In either case, they are not people that we should be taking seriously in any way whatsoever. And yet James Hansen is listened to very seriously—and not just by that great, big charlatan, Al Gore.

The second point to consider—and it's a pretty fucking major one—is that the climate is a complicated—no, very complicated—system and we barely understand all of the interactions as it is; this fact on its own makes all of these climate models pretty suspect.

If you feed false data into those models—and we can see that GISS, at the very least, have been doing so—then those models are absolutely worthless.

And let us further remind ourselves that it is on the outcomes... no, that's too precise, for even the IPCC only calls them "projections"... it is on the projections of these models that we are all getting so very worried about catastrophic anthropogenic climate change.

Now, I'm no scientist and nor am I a statistician, but I can see stupidity and duplicity in the examples that I have posted above: these fuckers are lying and they are stupid to think that they can get away with it (although, of course, ten years ago—before the advent of easy publishing on the web—they would have done so. Indeed, they did do so and they are still trying it on).

Now, can we carry on making our lives better, letting the poor get richer and, in this small nation, forming a sensible policy to ensure that the lights don't go out?

Labels: , , , , , , , ,


Posted by Devil's Kitchen at 8/03/2008 09:13:00 PM


20 Blogger Comments:

Anonymous Budgie said...

With you all the way on this, DK.

8/03/2008 10:33:00 PM  
Blogger DC said...

Good post - although I don't think they are lying - I just think they 'believe' and shape the argument the same way that many religious people do.

8/03/2008 11:14:00 PM  
Blogger Devil's Kitchen said...

"Good post - although I don't think they are lying - I just think they 'believe' and shape the argument the same way that many religious people do."

Although, of course, I would still call that lying...

DK

8/03/2008 11:17:00 PM  
Anonymous LillyMunster (twitter) said...

Look DK, this IS the new religion and you just gotta have faith in it dear. You are supposed to feel guilty and buy indulgen...I mean carbon credits, not post these heretical photos. LOL

Lovin' your excellent blog and tweets, over here in SoCal aka Nannyland.

8/03/2008 11:35:00 PM  
Anonymous Al said...

Seeing this post has reminded me of one thing that I think is often forgotten about - air conditioning.

Pretty much every building in every city is cooled. Now, as any fool should know, if you make something colder, you do this by moving the heat elsewhere.

Every building is belching out massive amounts of heat these days. Sure, many buildings use water to cool it again (often in the shape of water features) but in dense cities, especially those in the US, you are constantly being bombarded by hot air from buildings.

A big part of the temperature statistics? I think so. I wonder if we could get statistics about the take-up of air conditioning... and in particular, if that happens to match up with certain temperature stats - including the slowdown a few years ago?

8/04/2008 12:03:00 AM  
Blogger Devil's Kitchen said...

Al,

If you visit surfacestations.org, you will find that a number of the stations are situated close to the heat exhausts of air conditioners, e.g. Miami and Sacaton.

DK

8/04/2008 12:17:00 AM  
Blogger TheFatBigot said...

I've said it before and I'll say it again. Climate models are like sausage machines. If you pour condemned meat into the hopper at one end you cannot extract an edible sausage from the other.

Occasionally I dip my metaphorical toe into into the alarmist waters and am absolutely staggered by what I read. To many in that camp the latest IPCC report is like the Bible to a fundamentalist Baptist from Alabama. If you question the data or the models the answer is "you need to read the good book". So you respond "I have read the good book and I doubt Section X because ..." They press the burn-the-heretic button. It really is quite scary.

There is nothing surprising about this, of course. All they are doing is what the likes of Tony Benn do. Whatever question is put, his answer is "we need more socialism". There is no arguing with religious fanatics.

Interestingly, all those I have talked to on this issue, from High Court Judges to bin men, have responded the same way - "it all seems a bit far-fetched to me".

8/04/2008 12:48:00 AM  
Anonymous Zenobia said...

Hmmm Any one remember Y2K? The similarity is quite amazing.

8/04/2008 01:08:00 AM  
Blogger John A said...

Get a copy of any "computer model" reported by IPCC.

Feed it as much data as you can, but stop at 1946. Nothing later.

Then have it model weather 1950-2000.

Show it to the modelers and stand back quickly so as to avoid the excreta of male bovines rapidly filling the room.

If any modeler survives, point out that modern Chaos Theory was developed by a Dr. Lorenz - a climate researcher who showed computer modeling as known (then or now, despite progression of "power" in computers) CANNOT handle weather.

If there are still survivors, congratulations: you have found True Believers of the type who, if they thought cars assembled themselves, would go on believing after touring a Mitsubishi factory.

8/04/2008 02:58:00 AM  
Blogger Pogo said...

DK.. You may not consider yourself a "scientist" or "statistician", but, having been a reader of your blog for some considerable while, I can assure you that you're far more qualified than the vast majority of "environmental correspondents" in the MSM!

8/04/2008 11:08:00 AM  
Anonymous Umbongo said...

Actually you don't have to be a scientist to do "science". For instance, Roger Harrabin - the climate analyst of the BBC - has a degree in English. This should be sufficient for him to read and understand the point that this thread - and Steve MacIntyre - is making: that some of the data on which the IPCC and Hansen are basing their projections are probably faulty and that if some of the data are faulty then maybe the whole construct developed by Hansen and friends might be, well, a tad uncertain. This is the minimum that the AGW sceptics are claiming. It is enlightening that the warmists are rarely, if ever, prepared to admit that there may be weaknesses in the basic data (as demonstrated in this post's quotes). But, there again, if the scientific consensus is that AGW (or ACC) is real - and reversible - why bother to look at the data underlying the consensus?

8/04/2008 12:57:00 PM  
Blogger dirty dingus said...

I wrote an essay recently that takes this basis and then points out that it isn't just the data that is flawed. The whole scheme has holes in it from data to proposed remdies

http://www.di2.nu/200807/29.htm

8/04/2008 04:21:00 PM  
Anonymous Budgie said...

As reported by the BBC:
- first it was global warming caused by man made CO2;
- then it was climate change caused by man made CO2;
- then it was climate change caused by man made greenhouse gases.

In a few years time old Aunty will catch up and actually consider natural phenomena like sunspots.

8/04/2008 07:24:00 PM  
Anonymous dearieme said...

What would you call a trend whereby a bunch of "scientists", who to begin with were perhaps only remarkably inept, eventually resorted to full-scale fabrication to defend their careers?

Global Vermining?

Thank goodness it couldn't happen.

8/04/2008 08:27:00 PM  
Anonymous Anonymous said...

What is this supposed to prove? A couple of surface stations in the US do not impact at all on global temperature calculations. Did you miss that glaring hole in your insightful analysis?

9/02/2008 05:43:00 PM  
Blogger Devil's Kitchen said...

Anon,

If you knew anything at all about this, you would know that it does matter.

The temperature readings for these stations will impact over the whole area and, indeed, the whole reading set for the US.

Further, had you bothered to check surfacestations.org then you would have seen that these are just two examples in a significant proportion of badly-sighted stations.

DK

9/03/2008 09:16:00 AM  
Anonymous Anonymous said...

DK,

You are linking to a site that encourages the public to rate surface stations. Therefore, the ones that are close to the public will be rated first. These will be the "worst" ones under their rating systems, as they are in easily accessible urban areas.

Secondly, although the each station itslef has imperfections, as a whole, the dataset can recognise and account for these flaws, by the sheer number of the stations there are. This is for two reasons. The stations around about a malfunctioning station will highlight one that is in grevious error. Ie. you might have one several degrees higher than 5 in close proximity - therefore you know that it is faulty, or should at least be checked out. Secondly, the errors aren't biased in one direction. Some may be anomalously hot, others will be anomalously cool. The errors balance each other out.

Therefore as a point of fact you aren't correct. The temperature readings do not impact over a whole area, they are contained. The temperature of northern america does not dictate the warming trend seen - where is your proof that it does?

9/10/2008 10:23:00 AM  
Anonymous Evan Jones said...

Anonymous:

1.) "Therefore" fishfeathers.

I have personally surveyed either by direct ground photographs or virtual means (via satellite-plus interviews with the curators) over 150 stations.

I have been actively pursuing a "rural bias", making sure that a large (disproportionate) majority of my surveys are rural.

The fact is that rural stations are hardly any better sited than urban. You simply have no idea what you are talking about. This is not your fault, and easily remedied. (Do so.)

Over 70% of the network has been surveyed. My surveys have not changed the ratings percentages one whit (except maybe make them a little worse).

2.) The vast majority of the bias (over 95% at a generous guess) is warming bias. The errors balance each other out, my foot.

Therefore, as a point in fact, you are simply not up to speed. This is not your fault, of course, and easily remedied. (Ramp it up.)

2/28/2009 04:36:00 AM  
Anonymous Evan Jones said...

Note that there are Urban heat Island issues that are not related to microsite violations. A well sited station in a city is not likely to yield accurate data.

But neither is a badly sited rural station.

Only 11% of all stations are well sited (i.e., have a warming bias of under 1ºC).

Pointing out a bad station is not cherrypicking.

Pointing out a good station is.

2/28/2009 04:46:00 AM  
Anonymous Anonymous said...

I totally agree with what you are saying- I think "Climate Change" is a scam and Hansen, Gore, Mann and co. are opportunistic charlatans.
However I also think that your peppering of your argument with F-words demeans the values what you are saying.

Kon Deeler

2/28/2009 03:52:00 PM  

Post a Comment

Links to this post:

Create a Link

<< Home

Testimonials

  • "The best British political/libertarian blog on the web. Consistently excellent but not for the squeamish."—Christopher Snowdon
  • "[He] runs the infamous and fantastically sweary Devil’s Kitchen blog, and because he’s one of the naughtiest geeks (second only to the incredibly, incredibly naughty Guido Fawkes) he’s right at the top of the evil dork hierarchy."—Charlotte Gore
  • "I met the Devil's Kitchen the other night. What a charming young man he is, and considerably modest too..."—Peter Briffa
  • "The Devil's Kitchen exposes hypocrisy everywhere, no holds barred."—Wrinkled Weasel
  • "People can still be controversial and influential whilst retaining integrity—Devil's Kitchen springs to mind—and attract frequent but intelligent comment."—Steve Shark, at B&D
  • "Sometimes too much, sometimes wrong, sometimes just too much but always worth a read. Not so much a blog as a force of nature."—The Nameless Libertarian
  • "The Devil's Kitchen—a terrifying blog that covers an astonishing range of subjects with an informed passion and a rage against the machine that leaves me in awe..."—Polaris
  • "He rants like no one else in the blogosphere. But it's ranting in an eloquent, if sweary, kind of way. Eton taught him a lot."—Iain Dale
  • "But for all that, he is a brilliant writer—incisive, fisker- extraordinaire and with an over developed sense of humour... And he can back up his sometimes extraordinary views with some good old fashioned intellectual rigour... I'm promoting him on my blogroll to a daily read."—Iain Dale
  • "... an intelligent guy and a brilliant writer..."—A Very British Dude
  • "... the glorious Devil's Kitchen blog—it's not for the squeamish or easily offended..."—Samizdata
  • "... a very, smart article... takes a pretty firm libertarian line on the matter."—Samizdata
  • "By the way, DK seems to be on fucking good form at the moment."—Brian Mickelthwait
  • "Perhaps the best paragraph ever written in the history of human creation. It's our Devil on fine form."—Vindico
  • "Devil's Kitchen is the big name on the free-market libertarian strand of the British blogosphere... Profane rants are the immediate stand-out feature of DK's blog, but the ranting is backed up by some formidable argument on a wide range of issues particularly relating to British and European parliamentary politics, economics, and civil liberties."—Question That
  • "... an excellent, intelligent UK political blog which includes a great deal of swearing."—Dr Aubrey Blumsohn
  • "I like the Devil's Kitchen. I think it's one of the best written and funniest blogs in the business."—Conservative Party Reptile
  • "The. Top. UK. Blogger."—My Vast Right-Wing Conspiracy
  • "For sheer intelligence, erudition and fun, Iain Dale's Diary, Cranmer and Devil's Kitchen are so far ahead of the rest I don't see how they can figure in a top ten. They are the Beatles, Stones and Who of the blog world; the Astair, Bogart and Marlon Brando of the blog world; the Gerswin, Porter and Novello of the blog world; the Dot Cotton, Pat Butcher, Bette Lynch of the blog world..."—Wrinkled Weasel
  • "It's the blogging equivalent of someone eating Ostrich Vindaloo, washed down by ten bottles of Jamaican hot pepper sauce and then proceeding to breathe very close to your face while talking about how lovely our politicians are... But there's much more to his writing than four letter words."—Tom Tyler
  • "God bless the Devil's Kitchen... Colourful as his invective is, I cannot fault his accuracy."—Tom Paine
  • "The Devil's Kitchen is a life-affirming, life-enhancing blog ... This particular post will also lead you to some of the best soldiers in the army of swearbloggers of which he is Field Marshal."—The Last Ditch
  • "... underneath all the ranting and swearing [DK]'s a very intelligent and thoughtful writer whom many people ... take seriously, despite disagreeing with much of what he says."—Not Saussure
  • "... the most foul-mouthed of bloggers, Devils Kitchen, was always likely to provoke (sometimes disgust, but more often admiration)."—The Times Online
  • "The always entertaining Mr Devil's Kitchen..."—The Times's Comment Central
  • "Frankly, this is ranting of the very highest calibre."—The Nameless Libertarian
  • "I don't mean it literally, or even metaphorically. I just find that his atheism aside, I agree with everything the Devil (of Kitchen fame...) says. I particularly enjoy his well crafted and sharp swearing, especially when addressed at self righteous lefties..."—The Tin Drummer
  • "Spot on accurate and delightful in its simplicity, Devil's Kitchen is one of the reasons that we're not ready to write off EUroweenie-land just yet. At least not until we get done evacuating the ones with brains."—Anti-Idiotarian Rottweiler
  • "This hugely entertaining, articulate, witty Scottish commentator is also one of the most foul-mouthed bloggers around. Gird up your loins and have a look. Essential reading."—Doctor Crippen
  • "The Devil's Kitchen is one of the foremost blogs in the UK. The DK is bawdy, foul-mouthed, tasteless, vulgar, offensive and frequently goes beyond all boundaries of taste and decency. So why on earth does Dr Crippen read the DK? Because he reduces me to a state of quivering, helpless laughter."—Doctor Crippen's Grand Rounds
  • "DK is a take-no-prisoners sort of libertarian. His blog is renowned for its propensity for foul-mouthed invective, which can be both amusing and tiresome by turns. Nevertheless, he is usually lucid, often scintillating and sometimes illuminating."—Dr Syn
  • "If you enjoy a superior anti-Left rant, albeit one with a heavy dash of cursing, you could do worse than visit the Devil's Kitchen. The Devil is an astute observer of the evils of NuLabour, that's for sure. I for one stand converted to the Devil and all his works."—Istanbul Tory
  • "... a sick individual."—Peter Briffa
  • "This fellow is sharp as a tack, funny as hell, and—when something pisses him off—meaner than a badger with a case of the bullhead clap."—Green Hell
  • "Foul-mouthed eloquence of the highest standard. In bad taste, offensive, immoderate and slanderous. F***ing brilliant!—Guest, No2ID Forum
  • "a powerfully written right-of-center blog..."—Mangan's Miscellany
  • "I tend to enjoy Devil's Kitchen not only because I disagree with him quite a lot of the time but because I actually have to use my brain to articulate why."—Rhetorically Speaking
  • "This blog is currently slamming. Politics certainly ain't all my own. But style and prose is tight, fierce, provocative. And funny. OK, I am a child—swear words still crack a laugh."—Qwan
  • "hedonistic, abrasive but usually good-natured..."—The G-Gnome
  • "10,000 words per hour blogging output... prolific or obsessive compulsive I have yet to decide..."—Europhobia
  • "a more favoured blog from the sensible Right..."—Great Britain...
  • "Devils Kitchen, a right thinking man indeed..."—EU Serf
  • "an excellent blog..."—Rottweiler Puppy
  • "Anyone can cuss. But to curse in an imaginative fashion takes work."—Liftport Staff Blog
  • "The Devil's Kitchen: really very funny political blog."—Ink & Incapability
  • "I've been laffing fit to burst at the unashamed sweariness of the Devil's Kitchen ~ certainly my favourite place recently."—SoupDragon
  • "You can't beat the writing and general I-may-not-know-about-being-polite-but-I-know-what-I-like attitude."—SoupDragon
  • "Best. Fisking. Ever. I'm still laughing."—LC Wes, Imperial Mohel
  • "Art."—Bob
  • "It made me laugh out loud, and laugh so hard—and I don't even get all the references... I hope his politics don't offend you, but he is very funny."—Furious, WoT Forum
  • "DK himself is unashamedly right-wing, vitriolic and foul mouthed, liberally scattering his posts with four-letter-words... Not to be read if you're easily offended, but highly entertaining and very much tongue in cheek..."—Everything Is Electric
  • "This blog is absolutely wasted here and should be on the front page of one of the broadsheets..."—Commenter at The Kitchen
  • "[This Labour government] is the most mendacious, dishonest, endemically corrupt, power-hungry, incompetent, illiberal fucking shower of shits that has ruled this country..."—DK

Blogroll

Campaign Links

All: Daily Reads (in no particular order)

Politics (in no particular order)

Climate Change (in no particular order)

General & Humour (in no particular order)

Mac,Design Tech & IT (in no particular order)