Questions for NOAA and NPS Death Valley that have gone unanswered related to the 100 year celebration of the ‘hottest ever temperature’

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:…

The Australian Bureau of Meteorology Gets it Wrong

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…

Hot weather and climate change – a mountain from a molehill?

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…

It seems NOAA has ‘de-modernized’ the official Death Valley station to use older equipment to make a record more likely

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…

Boulder Escapes Global Warming

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…

Circularity of homogenization methods

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…

GHCN’s Dodgy Adjustments In Iceland

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…

The heat is on: the UK SurfaceStations effort

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. …

A new paper showing how UHI and energy consumption are linked to long-term temperature change in China

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 ‘Janus moment’ – while claiming ‘The American public can be confident in NOAA’s long-standing surface temperature record’, they fund an experiment to investigate the effects of station siting and heat sinks/sources on temperature data

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…

Errors in Estimating Mean Temperature – Part II

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…

Errors in Estimating Temperatures Using the Average of Tmax and Tmin—Analysis of the USCRN Temperature Stations

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…

July was also the 329th consecutive month of positive upwards adjustment to the U.S. temperature record by NOAA/NCDC

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…

How not to measure temperature, part 93: the hottest weather station in the UK cited by the BBC has some interesting exposure

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…

Fun puzzle: Name these official stations

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…

An ‘inconvenient result’ – July 2012 not a record breaker according to data from the new NOAA/NCDC U.S. Climate Reference Network

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…

New paper blames about half of global warming on weather station data homogenization

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…

Kiwi weather station data shenanigins going to court

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…

Important New Paper on the Nocturnal Boundary Layer, Mixing, and Radiative Forcing as it applies to GHCN weather stations

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…

Comparing GHCN V1 and V3

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…

Phil Jones gives a talk at KNMI in De Bilt – meanwhile temperature and paleo researchers are still blowing off data requests

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…

Facepalm! Gore’s “dirty energy = dirty weather” claims about the US are laughable in the context of other countries

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…

An analysis of the Central Netherlands Temperature record

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…

Warming in the USHCN is mainly an artifact of adjustments

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…

Weather cows

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?

Abrupt changes in GHCN station-level temperature records contradict the anthropogenic global warming (AGW) claims.

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…

NOAA: leaving bad data stand in Laredo

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…

Houston, we have a temperature problem

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…

How not to measure temperature in the GHCN, part 1

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…

My surfacestations project at the AMS conference

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…