UPDATED: Do the Adjustments to Land Surface Temperature Data Increase the Reported Global Warming Rate?

Guest Post by Bob Tisdale This is an update of the post published a week ago here (WattsUpWithThat cross post is here). That earlier post included “raw” unadjusted data based on an outdated version of the NOAA GHCN dataset. This updated post includes annual land surface air temperature data through 2015 and uses the current…

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"Thorough, not thoroughly fabricated: The truth about global temperature data"… Well, not *thoroughly* fabricated.

Guest post by David Middleton Featured image borrowed from here. If you can set aside the smug, snide remarks of the author, this article does a fairly good job in explaining why the surface station temperature data have to be adjusted and homogenized. There is just one huge problem…   Without the adjustments and homogenization,…

The Oddities in NOAA’s New “Pause-Buster” Sea Surface Temperature Product – An Overview of Past Posts

Guest Post by Bob Tisdale NOAA revised their global surface temperature product in June 2015 to show more global warming during the post-1998 period. Those data manipulations supposedly ended the slowdown in global warming over that period. The changes to NOAA’s global ocean surface temperature product were the primary cause of the NOAA’s hiatus-disappearing act.…

Approximately 92% (or 99%) of USHCN surface temperature data consists of estimated values

An analysis of the U.S. Historical Climatological Network (USHCN) shows that only about 8%-1% (depending on the stage of processing) of the data survives in the climate record as unaltered/estimated data. Guest essay by John Goetz A previous post showed that the adjustment models applied to the GHCN data produce estimated values for  approximately 66% of…

Inquiry Launched Into Global Temperature Data Integrity

The International Temperature Data Review Project London, 26 April 2015 – The London-based think-tank the Global Warming Policy Foundation is today launching a major inquiry into the integrity of the official global surface temperature records. An international team of eminent climatologists, physicists and statisticians has been assembled under the chairmanship of Professor Terence Kealey, the…

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…

New Paper Confirms the Hiatus Is Not Occurring at the Poles, Undermining the Efforts of Cowtan and Way

Guest Post by Bob Tisdale Pierre Gosselin of NoTrickZone reports on a paper that confirms the slowdown in global surface warming has not been occurring at the poles. See Pierre’s post German Experts: New Paper By Gleisner Shows 2013 Cowtan And Way Arctic Data Hole Paper Was A Lemon. You’ll recall that Cowtan and Way…