Tag Archives: Global Historical Climatology Network

Central Park in USHCNv2.5 (October 2012) magically becomes cooler in July in the Dust Bowl years

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 … Continue reading

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Posted in Climate data, GHCN, NCDC, NOAA, Weather_stations | Tagged , , , , , | 56 Comments

NCDC’s irreconcilable temperatures in the May 2013 State of the Climate Report

NOAA/NCDC just published their State of the Climate Report for May 2013, and in it, are some claims about global temperature that look just plain wrong when compared to other global data sets. They claim: The combined average temperature over … Continue reading

Posted in Climate data, NCDC, NOAA | Tagged , , , , , , , , | 89 Comments

Japan’s ‘Cool Hand Luke’ moment for surface temperature

At NASA’s Climate 365, there is an interesting story posted with this statement and a graph: Some say scientists can’t agree on Earth’s temperature changes Each year, four international science institutions compile temperature data from thousands of stations around the … Continue reading

Posted in Climate data, NASA GISS, NCDC, NOAA | Tagged , , , , , , , , | 122 Comments

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. … Continue reading

Posted in Climate data, GHCN, Weather_stations | Tagged , , , , , | 137 Comments

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 … Continue reading

Posted in GHCN, Weather_stations | Tagged , , | 65 Comments

Dr. Roger Pielke Sr. on two recent “game changing” climate papers

In case you missed it, on Sunday Dr. Roger Pielke Sr.wrote a statement of support for Watts et al 2012. See: Comments On The Game Changer New Paper “An Area And Distance Weighted Analysis Of The Impacts Of Station Exposure … Continue reading

Posted in Watts et al 2012 | Tagged , , , , | 48 Comments

New study shows half of the global warming in the USA is artificial

PRESS RELEASE – U.S. Temperature trends show a spurious doubling due to NOAA station siting problems and post measurement adjustments. Chico, CA July 29th, 2012 – 12 PM PDT – FOR IMMEDIATE RELEASE A comparison and summary of trends is … Continue reading

Posted in Announcements, Surfacestations paper | Tagged , , , , , , , , , | 1,085 Comments

New paper on the quality of USHCN station siting

Dr. Roger Pielke Sr. draws attention today to a new study that cites Fall et al. 2011 aka the “Surfacestations Paper” that I co-authored, which was a follow up to my original surveys published in Watts 2009. The new paper … Continue reading

Posted in Surfacestations paper | Tagged , , , , | 98 Comments

Weekly Climate and Energy News Roundup

Brought to You by SEPP (www.SEPP.org) The Science and Environmental Policy Project ################################################### Quote of the Week: “In their statement Sunday, Science editors said, “The scientific process is a naturally self-correcting one, as scientists attempt to replicate published results.” WSJ … Continue reading

Posted in Climate News Roundup | Tagged , , , , , , , | 3 Comments

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 … Continue reading

Posted in GHCN, Surfacestations paper, UHI, Weather_stations | Tagged , , , , , , , , | 65 Comments

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, … Continue reading

Posted in GHCN, Weather_stations | Tagged , , , , , , , | 275 Comments

Roy Spencer’s ISH population adjusted discoveries

Readers recall that I carried a guest post from Dr. Roy Spencer on what he learned from analysing the CRUTem3 data: Spencer shows compelling evidence of UHI in CRUTem3 data. Now he has turned his attention to what I consider … Continue reading

Posted in Climate data | Tagged , , , , , , , | 33 Comments

An update on my Climate Reference Network visualization project

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 … Continue reading

Posted in Climate data, Fakegate, GHCN, Michael E. Mann, NASA GISS, NOAA, Weather_stations | Tagged , , , , , , , , | 93 Comments

Another GISS miss: warming in the Arctic – the adjustments are key

GHCN Temperature Adjustments Affect 40% Of The Arctic By Paul Homewood                          Before                                                           After There has been much discussion recently about temperature adjustments made by GHCN in Iceland and Greenland, which have had the effect of reducing historic temperature levels, thereby … Continue reading

Posted in Climate data | Tagged , , , , , , , | 90 Comments

Another GISS miss, this time in Iceland

Ever wonder why NASA’s Jim Hansen (and many others) see red at high northern latitudes? Above 2011 Temperature Anomaly. Source: NASA GISS interactive plotter With all that red up north, you’d think Jimbo, Gore, and Trenberth would want to get … Continue reading

Posted in Uncategorized | Tagged , , , , , , , | 259 Comments

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 … Continue reading

Posted in Climate data, GHCN, Weather_stations | Tagged , , , , , , , , | 205 Comments

An Open Letter to Dr. Phil Jones of the UEA CRU

Guest Post by Willis Eschenbach Dear Dr. Jones: You and I have been interacting, albeit at a distance, since I first asked you for your data some five years ago. I asked for your data in part because I was … Continue reading

Posted in Climategate, Opinion | Tagged , , , , , , , | 317 Comments

What the BEST data actually says

Guest Post by Willis Eschenbach My theory is that the BEST folks must have eaten at a Hollywood Chinese restaurant. You can tell because when you eat there, an hour later you find you’re hungry for stardom. Now that the … Continue reading

Posted in Berkeley Earth Surface Temperature | Tagged , , , , | 191 Comments

Note to Tamino: Cherries are not the only fruit

Guest post by Verity Jones A Tamino rant aimed at Joe D’Aleo’s Arctic ice refreezing after falling short of 2007 record (also at ICECAP) has had me smiling.  Tamino’s accusation against Joe of cherry picking are centred on one of the … Continue reading

Posted in Climate data | Tagged , , | 73 Comments

One data set discontinued, NCDC to offer free daily data access to another

I’m not sure what the motivation for this is, none was given in the announcement. The historical data contained in the 3200 directory will remain on ftp3 for a limited time. This mirrors the removal of other datasets, such as … Continue reading

Posted in Climate data | Tagged , | 17 Comments

The Climate Change Blues

Via Eurekalert, and from the “Department of Population Color Doppler Shift”, comes this story of the bluing. Next comes the violet. After that, well, I don’t even want to talk about it…   Published in the Journal of Animal Ecology … Continue reading

Posted in Climate News, Ridiculae | Tagged , , | 72 Comments

Pielke Sr. on sampling error in BEST 2% preliminary results

Is There A Sampling Bias In The BEST Analysis Reported By Richard Muller? Guest post by Dr. Roger Pielke Senior In his testimony Richard Muller (which I posted on Friday April 2 2011), indicated that he used 2% of the available … Continue reading

Posted in Uncategorized | Tagged , | 30 Comments

New independent surface temperature record in the works

Good news travels fast. I’m a bit surprised to see this get some early coverage, as the project isn’t ready yet. However since it has been announced by press, I can tell you that this project is partly a reaction … Continue reading

Posted in Climate data | Tagged , , , | 205 Comments

CRU’s shifting sands of global surface temperature

Excerpt from The Inconvenient Skeptic by John Kehr The longer I am involved in the global warming debate the more frustrated I am getting with the CRU temperature data.   This is the one of the most commonly cited sources of … Continue reading

Posted in Climate data | Tagged , | 123 Comments

3% of Earth’s landmass is now urbanized

This study, from 2005, is not one I’ve covered here before, but I thought it was relevant to have a look at as a logical followup to the recent announcement from NASA at AGU that satellites have identified strong UHI … Continue reading

Posted in UHI | Tagged , , , , | 55 Comments