By Joseph D’Aleo, CCM Remember this story long ago on New York’s Central Park multiple very different data sets to which Steve McIntyre responded here. McIntyre wrote then: …has the temperature of New York City increased in the past 50 years? Figure 1 below is excerpted from their note, about which they observed. Note the…
http://www.wrh.noaa.gov/vef/deathvalley/ I sent this last Tuesday, I have not seen a response from either individual listed here as press contacts at the press release for the 100th anniversary of the hottest temperature ever. Perhaps the questions are just too difficult. – Anthony From: Anthony Watts Sent: Tuesday, July 02, 2013 8:10 AM To: daniel.berc@noaa.gov Cc:…
Guest essay by Ed Thurstan Abstract The Australian Bureau of Meteorology (BoM) released a new temperature dataset – the “Australian Climate Observations Reference Network – Surface Air Temperature“ (ACORN-SAT) in early 2012, with data to the end of 2011. It is supposedly a ground-breaking daily homogenised dataset. Ground-breaking it certainly is. The BoM has brought…
Guest essay by Steve Goreham Originally published in The Washington Times On Sunday, Death Valley temperatures reached 129oF, a new June record high for the United States, according to the National Weather Service. Temperatures at McCarran International Airport in Las Vegas reached 117oF, tying the previous record set in 1942 and 2005. National Geographic, NBC…
How can two stations less than 1/2 mile apart be so different? How can one set a new record and best it by two degrees while the other doesn’t? I was intrigued by this Record Event Report out of Las Vegas today because of the mercury reading, specifically in the “town” of Mercury: Hmm, smashing.…
About those ‘record’ Death Valley temperatures everybody is waiting for… UPDATE: 128°F today at Death Valley COOP station. See Record Event Report below. It seems the media and the alarmists are cheering on the possibility of an all-time temperature record in Death Valley. There’s lots of hullabaloo over the supposedly tied all time temperature record…
In Anthony’s recent post about the new snowfall records, the record high at Jal, New Mexico caught his eye. I live in New Hampshire, so the lonely red dot in Maine caught my eye. I’ve never been fond of this data, and several of the records I’ve looked into are from sites that are relatively…
UPDATE : The NWS responds about the station issue, see below. – Anthony Almost 60% of the contiguous USA covered in snow. While pundits spin attempts at linking snowfall in the Northeast USA to AGW, much like they do in the summer during heat waves, we find that Nature is just taunting them with snow…
Guest post by Sam I. Outcalt Abstract: The historic record of the mean annual air temperature record at Boulder does not display the major “global” climate transitions detectable in the total annual precipitation record. Hurst ReScaling is demonstrated to be a powerful tool to examine climate change. Background: The citizens of Boulder, Colorado are extremely…
Readers may recall the story Global Warming?……. It was warmer in Sydney in 1790 by Craig Kelly, MP in NSW Australia in response to some of the recent alarmist caterwauling in the press about the hot summer in Australia being a sign of ‘global warming’. He writes in with an update regarding criticisms by Steven…
Guest post by David R.B. Stockwell PhD I read with interest GHCN’s Dodgy Adjustments In Iceland by Paul Homewood on distortions of the mean temperature plots for Stykkisholmur, a small town in the west of Iceland by GHCN homogenization adjustments. The validity of the homogenization process is also being challenged in a talk I am…
Guest post by Paul Homewood Take a look at the two graphs above. They are both mean temperature plots for Stykkisholmur, a small town in the west of Iceland. Now take another look! The top one is the official Icelandic Met Office (IMO) plot, and it clearly shows a gradual upward trend since the early…
They say “imitation is the sincerest form of flattery”, so color me flattered. I’ve been remiss in writing about this effort by Roger Tattersall (aka Tallbloke) and his colleague Tim Channon, but a tip from WUWT reader David Schofield brought me to think this would be good to mention it, so they can make comparisons. …
Dr. Roger Pielke Sr. highlighted this major new paper in JGR yesterday, I consider it important as it relates to the works I’m doing on station siting. The key points of the paper are supportive of what I’ve been saying for years, and show a significant effect on temperature trends, just as we’ve noted in…
NOAA’s impersonation of the two faced god Janus just proved my point about station siting issues with their actions that speak louder than words. While there’s all this caterwauling about my PBS News hour interview, and my statements were apparently so threatening that NOAA itself asked PBS to publish a rebuttal in their apologetic story…
Guest post by Lance Wallace Last week (Aug 30), Anthony Watts posted my analysis of the errors in estimating true mean temperatures due to the use of the (Tmin+Tmax)/2 approach widely used in thousands of temperature measuring stations worldwide: http://wattsupwiththat.com/2012/08/30/errors-in-estimating-temperatures-using-the-average-of-tmax-and-tmin-analysis-of-the-uscrn-temperature-stations/ . The errors were determined using the 125 stations in NOAA’s recently-established US Climate Reference…
Guest post by Lance Wallace Abstract The traditional estimate of temperature at measuring stations has been to average the highest (Tmax) and lowest (Tmin) daily measurements. This leads to error in estimating the true mean temperature. What is the magnitude of this error and how does it depend on geographic and climatic variables? The US…
I’ve noticed there’s a lot of frenetic tweeting and re-tweeting of this “sound bite” sized statement from this Climate Central piece by Andrew Freedman. July was the fourth-warmest such month on record globally, and the 329th consecutive month with a global-average surface temperature above the 20th-century average, according to an analysis released Wednesday by the…
Over at Tallbloke’s Talkshop, moderator Tim Channon wondered about this regularly hot station reported in the news: An often appearing name in the BBC news as the hottest place in the country is Gravesend but the true location of the Met Office thermometer is a mystery. By chance I followed up today and discovered a…
Plus answers to yesterday’s Fun puzzle: Name these official stations. Given that California Governor Jerry Brown has recently setup a website at the governor’s office basically telling skeptics to “shut up” I thought this would be a good time to publish this. This is a paper that was presented at a climate conference by Jim…
Here’s a fun little puzzle for you, two older station siting photographs from former California State Climatologist, Jim Goodridge, circa the 1980’s. I had Jim find these because I was recently interviewed for a national network newscast, and when I told the story of them, the reporter wanted these photos. Jim found them attached on…
I decided to do myself something that so far NOAA has refused to do: give a CONUS average temperature for the United States from the new ‘state of the art’ United States Climate Reference Network (USCRN). After spending millions of dollars to put in this new network from 2002 to 2008, they are still giving…
From the told ya so department, comes this recently presented paper at the European Geosciences Union meeting. Authors Steirou and Koutsoyiannis, after taking homogenization errors into account find global warming over the past century was only about one-half [0.42°C] of that claimed by the IPCC [0.7-0.8°C]. Here’s the part I really like: of 67% of…
Climate change readings ‘inaccurate’ TREVOR QUINN A climate change group has taken the National Institute for Atmospheric and Water Research (NIWA) to court over what they say are inaccurate temperature recordings. The New Zealand Climate Education Trust – a branch of the NZ Climate Science Coalition – are challenging NIWA figures which show a rise…
From Dr. Roger Pielke Sr. comes word of an important new paper that shows how the air near the ground (boundary layer) is highly affected by sensitive nighttime dynamics, which show up in the Tmin of weather station data (GHCN stations in this case) but are not captured by climate models. The paper also showed…
This is a combination of two posts elsewhere that illustrate just how much hype and how little substance the MSM and blogs like Grist, Climate Progress. and Capital Weather Gang have been pushing trying to make a run of the mill summer heat wave seem like an event of unprecedented global warming proportions. It isn’t,…
As many people know, weather stations are my specialty. I’ve been busy with inventing a number of things as of late, trying to stay competitive. So thought I’d drop this out there in case anyone has a use for either of these new solar powered weather station systems mentioned below. The US Fish and Wildlife…
Much Ado About Very Little Guest post by Zeke Hausfather and Steve Mosher E.M. Smith has claimed (see full post here: Summary Report on v1 vs v3 GHCN ) to find numerous differences between GHCN version 1 and version 3, differences that, in his words, constitute “a degree of shift of the input data of…
E.M. Smith over at the blog Musings from the Chiefio earlier this month posted an analysis comparing versions 1 and 3 of the GHCN (Global Historical Climate Network) data set. WUWT readers may remember a discussion about GHCN version 3 here. He described why the GHCN data set is important: There are folks who will…
Joanne Nova and Ken Stewart have uncovered some startling findings about the way Australia’s BOM “High Quality” network data is adjusted. Think USHCN here in America. This is well worth a read. – Anthony A team of independent auditors, bloggers and scientists went through the the BOM “High Quality” (HQ) dataset and found significant errors,…
From Marcel Crok at De staat van het klimaat: Phil Jones: ‘Contact NMS’s for raw data’ Over at Climate Audit there is renewed interest in data availability with McIntyre asking whether journals that don’t guarantee data archiving (The Holocene in this case) should be cited in IPCC reports. It happened that yesterday Phil Jones of…
Al Gore, is his usual incompetent persona, is bloviating weapons grade nonsense again. A few prior examples: On TV, Earth’s core is millions of degrees, in AIT, snows of Mt. Kilimanjaro will gone due to global warming, except the snows are growing, and Gore’s 24 hours of Climate Reality “high school science” that is so…
Many readers are familiar with the Central England Temperature Record (CET), now Frank Lansner investigates the Central Netherlands Temperature Record (CNT). Long, but enlightening. – Anthony Guest post by Frank Lansner Instead the KNMI has decided only to make available their “CNT”, the Central Netherland Temperature index. KNMI do make two coastal temperature series available…
WUWT reader BarryW found this on the Huntsville Office of the State Climatologist, operated by our friend, Dr. John Christy and left it in Tips and Notes. First Christy’s article, then the report on the rabbit hole my investigation sent me into. There goes another afternoon chasing a weather station. I’m glad I don’t live…
After reviewing over 1000 USHCN stations in the United States as part of my surfacestations.org project, I have often thought that I can’t find anymore surprises in the train wreck that is our surface observing network. Apparently I’m wrong. Can you spot the problem between these two aerial photographs? Click for a larger image. The…
Dr. Roy Spencer proves what we have been saying for years, the USHCN (U.S. Historical Climatology Network) is a mess compounded by a bigger mess of adjustments. ============================================================== USHCN Surface Temperatures, 1973-2012: Dramatic Warming Adjustments, Noisy Trends Guest post by Dr. Roy Spencer PhD. Since NOAA encourages the use the USHCN station network as the…
This was the view from near my home today. Cows on Bidwell Ranch acting like a weather-vane…all pointed north, due to a strong south wind with stinging rain…and who needs stinging wind in your face?
Mark Johnson, Chief Meteorologist of WEWS in Cleveland writes: A friend of mine, Justin Berk, a local TV Met in Baltimore, MD had this story to tell today: “There’s something fishy going on at BWI (Baltimore International Airport),” he says. Hourly obs at BWI airport (April 12, 2012) never went higher than 59 degrees. (See…
Readers may recall that when Peter Gleick first sent out the stolen Heartland board documents and the fake document to give the story “legs”, there was a mention in there of a project that I asked Heartland to help me fund. They found a private donor who was interested in my idea, and agreed to…
Via Jo Nova, an Australian Surface Stations Project has just reported its results. The BOM say their temperature records are high quality. An independent audit team has just produced a report showing that as many as 85 -95% of all Australian sites in the pre-Celsius era (before 1972) did not comply with the BOM’s own…
From Tom Nelson Email 600, Sept 2007: Watts expose makes NOAA want to change entire USA method Email 600
Jim River, AK closed in on the all time record coldest temperature of -80°F set in 1971, which is not only the Alaska all-time record, but the record for the entire United States. Unfortunately, it seems the battery died in the weather station just at the critical moment. While the continental USA has a mild…
Guest post by Jens Raunsø Jensen Preamble Inspired by a statement by Dr. Kevin Trenberth in the e-mails referred to as Climategate 2.0 (#3946 discussed here), it is hoped that climate scientists will have “an open enough mind to even consider” that the global warming of the 20th century could have occurred mainly as abrupt…
by Zeke Hausfather , Steven Mosher, Matthew Menne , Claude Williams , and Nick Stokes [Note: this is an AGU poster displayed at the annual meeting, available here as a PDF. I’ve converted it to plain text and images for your reading pleasure. I’m providing it without comment except to say that Steven Mosher has…
Former California State Climatologist Jim Goodridge sent this along yesterday. This interesting letter from 1892 is a letter from Sergeant James A. Barwick to cooperative weather observers in California. He was concerned about the station siting and exposure conditions and wanted full reports back. The US Army Signal Corp was the original impetus for the…
From Dr. Roger Pielke Sr.’s Climate Science blog, a story of a poorly sited weather station, followed by leaving in the bad data when it is known to be bad. I’ve located the Laredo airport AWIS, more photos below. Guest Post By Richard Berler Chief Meteorologist KGNS TV Laredo, TX With his permission, Richard Berler who…
Eric Berger writes (excerpt below) at the Houston Chronicle “SciGuy” blog about the wicked hot record breaking temperatures people were getting in Houston on their iPhones. Turns out the whole issue is over station siting. While he located the station, doing some further investigation, I’ve got shots of the actual equipment and error analysis. The…
Yes, it’s back. Dr. Roger Pielke Sr. and I have started looking at the GHCN to document the siting quality of surface stations that measure climate in the Global Historical Climatological Network (GHCN), the darling of NCDC’s Dr. Thomas Peterson who has recently added another level of processing to the mix. I’ll be offering some…
Co-author Dr. John Nielsen-Gammon (and subbed at the last minute by John Christy) presents the results of the SurfaceStations project to the 19th Conference on Applied Climatology 18–20 July 2011, Asheville, North Carolina. AMS just posted these presentations (h/t to Zeke at Lucia’s) and I’m providing them here also after converting from the AMS flv…
