As many readers know, I’ve been working with a team of dedicated volunteers on the US www.surfacestations.org project since June 2007. We now have over 50% of the 1221 station network surveyed and new surveys are being added, though slowed somewhat due to winter months.
The project scope was so large that it hasn’t been practical to consider other countries until the USHCN network has been completed. Another issue is that stations in the HadCRUT list for the UK aren’t quite as easy to locate, nor to get access to. One thing that NOAA does better than any other meteorological agency is to provide public access to all records. That level of access is not as common (or missing altogether, requiring FOI actions) in other countries.
I’m happy to report that there is now an effort underway in the UK to survey that network of stations. Pete Rawlinson writes to tell me of this first survey. Kudos to him and his team. I’ll be working with them to help locate stations and to bring you reports. In the meantime, you can learn more about the effort at this link.
The first station does appear at first glance to be well sited, until you see the Google Earth view and realize how close it is to the access road, and how much land area is urbanized north and south of the runway. This concerns me more than the Goliath jet. A good portion of GHCN stations are at airports like this one. Airports, as we know, have grown in size, sprawl, and flights served significantly in the last century to accomodate air travel growth. So when we have a significant portion of the GHCN record coming from airports, what are we actually measuring? – Anthony
Wales’s Record station – or is it? A David and Goliath tale
Hawarden Weather Station
Today we introduce Hawarden weather station, a pristine-looking station that provides hourly observations to the UK’s Met Office. It’s claim to fame is its holding of the maximum temperature ever recorded in the principality of Wales. 35c (95F) was recorded on 2nd August 1990.
Hawarden (more) is a small town situated on the Wales/England border close to the city of Chester. The nearby Deeside industrial conurbation provides most of the power generation for the Merseyside area that contains the large city of Liverpool.
Hawarden Airport has intermittent services, mainly serving the aerospace factories nearby. Airbus manufacture wings of their airliners in the next-door town of Broughton before assembly in Germany. This necessitates the use of bulky cargo planes such as the Beluga (more), generally used to transport large but light items. Speaking of the Beluga…
This is quite an amazing shot and we were lucky to get such an opportunity. It is unfortunate that temperature records are put in doubt when the sensor is placed in the vicinity of a huge heat source. Usually small town airfields like this are used for small passengers planes and leisure flying but to see a behemoth trundling along like this with a Stevenson screen in the foreground is an amazing contrast.
I think it’s only fair that on this occasion the last word is reserved to the Goliath.
Click for interactive view
Paul (03:08:28) :
“From my local paper…
Temperatures fall to lowest for 40 years
Thursday, January 08, 2009, 09:15”
The wife and I had the pleasure of touring Torbay/Torquay with some British friends several years ago. I was very surprised with the palm trees lining the beach. At 50N, I didn’t expect to see palms. Hope the recent cold doesn’t hurt them.
Did you see this… http://icecap.us/images/uploads/Stationdropout.jpg
The sudden rise in temperature corresponds to the suddent drop of rural stations…
Demesure (09:22:21)
“It’s with such sloppy data climatologists know the warming has been “unprecedented”. ”
Obviously. When you have no data, everything is without precident. That way, you can claim it has never happened in ‘recorded’ history.
OT but a must read:
The Big Chill
From the Accuweather page via Druge Report comes this announcement:
“This is about as bad as it gets folks. I don’t think I’ve seen anything like it since 1994. Sure its been very cold at times over the past 14 years, but the total area impacted by this cold wave will be huge. By next Thursday and Friday, extremely cold air will chill the entire area from the Great Plains to the Eastern Seaboard, and the cold is also going to reach the Deep South. Only the far West will be unscathed.
From the central Plains to the Northeast temperatures are going below zero; there is no question about it. Meanwhile, the Upper Midwest and northern New England could experience readings lower than 30 below zero!
One might have to go back to Jan. 1994 to find anything worse. In that bitter outbreak, temperatures went below zero from the central Plains to the East Coast. In New York there is a chance it will go below zero next Thursday or Friday night. The last time New York City experienced a below-zero temperature was Jan. 1994.
Did I mention there could be a snowstorm to boot? Yes, that very well could happen. Low pressure riding the leading edge of the bitter blast could put down a significant amount of snow starting in the Midwest Tuesday then reaching the East on Wednesday.”
http://www.accuweather.com/news-story.asp?partner=accuweather&traveler=1&article=5
Anthony,
I don’t know if this would be overstepping the mission or bounds of Watts, but I was wondering….
Because of many factors, some of us come up with stories before postings for this blog are developed for them. A great many of the OT (off-topic) comments on postings are just that. I just did one myself from Accuweather. Much of the time, again due to various reasons, the stories are never developed into postings for this blog – yet they might still be of interest to readers.
Even so, while these might be of interest to other readers, you’d have to comb through comments on each posting and you could miss a great deal if the particular posting it is under is not of much interest to you. Plus, the extra comments – the OT ones – unnecessarily lengthen the comments of at least some posts. So I thought that maybe the Watts blog could develop a section called something like “Stories of Interest” or maybe, in honor, just “Off Topic.” What it would entail is a form similar to the comments section, except that you would only be allowed a brief description. This way it does not develop into some sort of other blog connected to Watts. You would post your Name and E-mail with only the Name published of course and the link to the story. Guidelines would be that the stories have to fit into the mission and theme of the Watts blog. That way people don’t post just anything since we all have varied interests. It keeps the focus.
I like to think it would be fairly easy to moderate too. Spam and other stuff not relative to this blog could be deleted and the user blocked if necessary just as with Comments. You often say this blog is great because of the many eyes and ears of the Watts community, so why not open up a section of the blog that lets us contribute in a greater way than Comments will allow. Plus, as I said, it would allow Comments itself to remain more focused on the postings at hand.
Just an idea.
I’ve lived in Devon for more than forty years. It was colder (as in lowest minima) in winters 1997, 1987, 1985, 1984, 1981 and 1979 than this year. So, where this ‘coldest for forty years’ comes from I don’t know.
‘Coldest for at least ten years’ would put it better.
Paul
Where about are you? My local paper is the Herald Express too and I often write to it about AGW
TonyB
Anthony (and others): I have examined thermometers in retail stores and find discrepancies in their readings. This is not surprising as they are of dubious quality. This brings to mind 2 questions beyond siting:
1. Are thermometers used at surface stations ever checked for accuracy?
2. Are they ever calibrated if they are in error?
And who is responsible?( I know. this is a 3rd question)
It seems tome that this could be as serious a problem as siting.
jack m:
I worked in a calibration/metrology lab, so I can answer question #2: Once a glass/mercury thermometer is properly calibrated, it really doesn’t need re-calibration [unlike digital thermometers, which drift and are usually much less accurate than mercury thermometers].
If you find a good mercury thermometer [lots of places sell them], a quick-and-dirty way to check accuracy [for a thermometer with a wide enough range] is to make an ice bath with 1/2 distilled water, and 1/2 distilled ice, crushed.
Mix the ice/water bath thoroughly for 30 seconds, put the thermometer in and carefully stir it in the bath for a minute.
After one minute, while holding the very top and keeping the bulb and the lower part of the thermometer in the water as much as possible [never touching the sides], you should read exactly 0 degrees C [or 32 degrees F if it’s in Fahrenheit].
If the thermometer has the range, verify linearity by bringing a pot of distilled water to a boil, and repeating the reading. It should read 100 degrees C or 212 F, depending on type. Tests must be done at sea level.
The better scientific mercury thermometers are shipped factory calibrated, but you can do a search for a very inexpensive one by using the keywords “thermometer, mercury” and do your own calibration.
It’s fun keeping a daily log of temps using an accurate thermometer and comparing the result with your local GISS and NOAA record.
You can also buy a temperature datalogger from Anthony for under $60, which does automatic temp recording and downloads it into your computer: click
[Finally, don’t forget to vote! click here. Thanks.]
TonyB
Where about are you? My local paper is the Herald Express too and I often write to it about AGW
Tony mail me on stargazer@planet3earth.co.uk
Michael J Bentley:-)
Green used to mean naive & gullible or inexperienced in the old days, now it means messianic! Also the sailing expression “a bit green around the gills” used to refer to someone not used to sea travel, & was about to throw up! Was it not Cleopatra who said to Anthony in Shakespeare’s Anthony & Cleopatra, “ah, my salad days, when I was green in judgement”! Says it all really.
Generally, I work in the west country, Devon/Cornwall/Somerset/Dorset. If there is a list of stations available I would be happy to notify someone about any site visits I may be making so that I can be given a list of any nearby surface stations that could be photographed.
atb
re. De Bilt,
spot the step change:
http://data.giss.nasa.gov/work/gistemp/STATIONS//tmp.633062600000.0.1/station.gif
how do you get the unadjusted data?
OK, I’ve worked it out…
Raw data
http://data.giss.nasa.gov/work/gistemp/STATIONS//tmp.633062600003.1.1/station.gif
Data after Hansomatic adjustments
http://data.giss.nasa.gov/work/gistemp/STATIONS//tmp.633062600003.2.1/station.gif
Note the creation of a non-existent trend in 1880-1950.
So that’s the Netherlands artificially warmed then…
OK, the metadata for de bilt are:
pre-16/05/1950 – thermograph in large pagoda cabin 2.2m over a mown field
17/05/1950-28/06/1961 – thermograph in stevenson screen 2.2m above mown field (note downward step change in data)
29/06/1961-25/06/1993 – resistance measurement in stevenson screen 1.5m above mown field
26/03/1993-present day – electric sensor in dish cabin 1.5m above mown field (note step up).
So, how did the Hansomatic do?
-1950 step not adjusted
-1961 change is not visible in data
-1993 step not adjusted
-artificial trend introduced
I’ll try to do an adjustment graph a la Steve McI…
OK, done it…
Ladies and Gentlemen, the Netherlands is globally warmed by the Hansomatic AlGoreithm thusly:
[URL=http://img249.imageshack.us/my.php?image=debiltadjustmentsic1.gif][IMG]http://img249.imageshack.us/img249/3707/debiltadjustmentsic1.th.gif[/IMG][/URL]
Let’s try again:
Raw and Adjusted : http://img440.imageshack.us/my.php?image=debiltyj4.jpg
Adjustments (adj-raw) : http://img249.imageshack.us/my.php?image=debiltadjustmentsic1.gif
an attempt at embedding:
Ray
That graph on station dropout is very illuminating, hopefully Anthony can do a post on it if he gets a spare minute. I think its very worthy of bringing to further attention, as Icecap obviously have. In this day an age you would have thought we would have been adding more stations to the worldwide network rather than dropping them off. Especially the mostly rural stations that have been dropped. Its a scandal!
Neil
RE CET and ARMAGH
Re Phillip Bratby’s comment.
I need to do some research but I think you will find that the CET is not continuous that is read from the same stations that have remained in the same places without change. It has been spliced from different “continuous” records over time.
Whilst it is improbable that the Armagh record is also from exactly the same station, I think it has remained in the same place.
No doubt other readers can comment.
Regards
Anyone know what has happened to the web site?
Domain is registered, has plenty of time to go but wacv.co.uk has been 404 or security for some time now.
good question still as above on 9th feb.