Is NOAA About to Crack? ‘Pausebuster’ study under intense scrutiny

Guest essay by Eric Worrall According to House Science Committee Chairman Lamar Smith (R-Tex.), who is leading a Congressional investigation into the infamous Karl et al 2015 “Pausebuster” study, NOAA whistleblowers have come forward, with information which cast doubt on the scientific integrity of NOAA’s global temperature reconstructions. According to the Washington Post; Smith told…

NOAA/NCDC’s new ‘pause-buster’ paper: a laughable attempt to create warming by adjusting past data

Did SNL’s Tommy Flanagan Oversee the New Surface Temperature Data? By Bob Tisdale and Anthony Watts, commentary from Dr. Judith Curry follows There is a new paper published the journal Science about the recent slowdown in global surface warming (released from embargo today at 2PM eastern).  It is from Tom Karl and others at NOAA’s newly…

Can Temperature Adjustments Right a Wrong?

Guest Post by John Goetz Adjustments to temperature data continue to receive attention in the mainstream media and science blogs. Zeke Hausfather wrote an instructive post on the Climate Etc. blog last month explaining the rationale behind the Time of Observation (TOBS) adjustment. Mr. Hausfather pointed to the U.S. Climate Reference Network (CRN) as a…

On the Elusive Absolute Global Mean Surface Temperature – A Model-Data Comparison

Guest Post by Bob Tisdale With the publication of the IPCC 5th Synthesis Report, I thought there might be some interest in a presentation of how well (actually poorly) climate models simulate global mean surface temperatures in absolute terms. That is, most climate model outputs are presented in terms of anomalies, with data shown as…

September 2014 Global Surface (Land+Ocean) and Lower Troposphere Temperature Anomaly Update

Guest Post by Bob Tisdale This post provides an update of the data for the three primary suppliers of global land+ocean surface temperature data—GISS through September 2014 and HADCRUT4 and NCDC through August 2014—and of the two suppliers of satellite-based lower troposphere temperature data (RSS and UAH) through September 2014. The three surface data suppliers…

August 2014 Global Surface (Land+Ocean) and Lower Troposphere Temperature Anomaly Update

Guest Post by Bob Tisdale This post provides an update of the data for the three primary suppliers of global land+ocean surface temperature data—GISS through August 2014 and HADCRUT4 and NCDC through July 2014—and of the two suppliers of satellite-based lower troposphere temperature data (RSS and UAH) through August 2014. Initial Notes: GISS LOTI, and…

July 2014 Global Surface (Land+Ocean) and Lower Troposphere Temperature Anomaly Update

This post provides an update of the data for the three primary suppliers of global land+ocean surface temperature data—GISS through July 2014 and HADCRUT4 and NCDC through June 2014—and of the two suppliers of satellite-based lower troposphere temperature data (RSS and UAH) through July 2014. The map to the above right shows the July 2014…

NCDC: ‘our algorithm is working as designed’

In a statement to Polifact today, NCDC made the following statement: “… our algorithm is working as designed” One wonders though, about these sorts of things that have been found wrong in their data file for USHCN, which is represented to the public as “high quality”. Here are few other things that worked as designed:

On the Differences and Similarities between Global Surface Temperature and Lower Troposphere Temperature Anomaly Datasets

UPDATE: See the correction at the end of the post, which pertained to the discussion of the trend maps in Figures 13 and 14. I’ve crossed out the paragraph between those illustrations that was incorrect. And I’ve corrected a good number of typos in the text and illustrations. Thanks to all who found them. #…

Why Aren’t Global Surface Temperature Data Produced in Absolute Form?

The title question often appears during discussions of global surface temperatures. That is, GISS, Hadley Centre and NCDC only present their global land+ocean surface temperatures products as anomalies. The questions is: why don’t they produce the global surface temperature products in absolute form? In this post, I’ve included the answers provided by the three suppliers.…

Also-Rans: NCDC and GISS Global Surface Temperatures Finish 4th and 7th for 2013

Not a win, place or show between them. In other words, global surface temperatures are still stalled in the post-1997/98-El-Niño era. They are patiently waiting for another strong El Niño to release a batch of sunlight-created warm water from below the surface of the tropical Pacific before they resume their step-like climb in Trenberth-declared “big…

September 2013 Global Surface (Land+Ocean) Temperature Anomaly Update

Sorry this is so late. The NCDC and GISS updates were delayed by the government shutdown. Because it is so late, it includes the September 2013 HADCRUT4 data from the UKMO. It’s so late I’ve already published the Preliminary October 2013 sea surface temperature update here. Initial Notes: This post contains graphs of running trends…

A Curious Climate Analogy – Badly Reported by the NYT

Guest essay by Kip Hansen, St Thomas, USVI The AMERICAN METEOROLOGICAL SOCIETY just published a Special Supplement to the Bulletin of the American Meteorological Society titled: EXPLAINING EXTREME EVENTS OF 2012 FROM A CLIMATE PERSPECTIVE edited by Thomas C. Peterson, Martin P. Hoerling, Peter A. Stott, and Stephanie C. Herring. [hereafter EEE2012]. Kenneth Chang at…

NOAA’s Ever-Changing Definition of La Niña Years

UPDATE: I’ve added two illustrations to the end of the post. At the request of blogger “Kurt in Switzerland”, I plotted a comparison of the new and old versions of the Oceanic NINO Index data and posted it in a comment. I also plotted the difference, which is much more interesting. Both graphs have been…

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 world and make independent judgments about whether the year was warmer or cooler than average. “The…

Another glitch on the NCDC State of the Climate report

Is NOAA Misleading the Public by Including Tropical Cyclones in its 2012 Climate Extremes Index Ranking? by Bob Tisdale IF NOT, THE PRESS AND PUBLIC WILL CERTAINLY GET THE WRONG IDEA The Summary Information of the NOAA State of the Climate report reads with respect to extremes: The U.S. Climate Extremes Index indicated that 2012 was…

The ‘secret’ IPCC Stocker WG1 memo – found!

You may recall that WUWT reported this on Sepetember 6th, 2012: Game on – NOAA’s refusal of documents earns them a lawsuit Over the last couple of days, CEI’s Chris Horner has been emailing me news of a FOIA request he made earlier in the year. The FOI request is for correspondence between NOAA’s Dr. Thomas…