Guest Essay by Kip Hansen WARNING: This is not a technical essay. There is almost no science in it. It is not about AGW or any issue involved in the…
Category: measurement
Are We Chasing Imaginary Numbers?
Guest Essay by Kip Hansen Spoiler Alert: This essay is not about the mathematical entity the imaginary number. I do think that an essay here about imaginary numbers of…
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.…
Winners and losers in the GHCN estimation derby
Guest essay by John Goetz As noted in an earlier post here, approximately 66% of the GHCN record is estimated after processing by the GHCN adjustment models. In the current…
Approximately 66% of global surface temperature data consists of estimated values
Summary of GHCN Adjustment-Model Effects on Temperature Data Guest essay by John Goetz As the debate over whether or not this year will be the hottest year ever burns on,…
Lags and Leads
Guest Post by Willis Eschenbach I’ve been thinking about thermal lags in the climate system. Everyone is familiar with thermal lag in everyday life. When you put a cast-iron pan…
Midyear Prognosis For Records in 2014 (Now Includes June Data)
Guest Essay By Werner Brozek, Edited by Just The Facts: It was my intention to include all June data, however the June anomaly for Hadcrut3 is running really late again.…
Can GISS And Other Data Sets Set Records in 2014? (Now Includes April Data)
Guest Post by Werner Brozek (Edited By Just The Facts) GISS and other sets are poised to set new records in 2014, even without an El Nino. The present GISS…
How Would A Super El Niño Affect RSS in 2014? (Now Includes March Data)
Image Credit: WoodForTrees.org Guest Post By Werner Brozek, Edited By Just The Facts I will attempt to answer the question in the title from two different perspectives. First of all,…
July 1912 GISS Anomaly (-0.47) Was Warmer Than January 2007 GISS Anomaly (+0.94) – (Now Includes February Data)
Image Credit: The above graphic was sourced from this article by John Kehr on his blog The Inconvenient Skeptic, and he also authored this interesting article on WUWT. Guest Post…
When Did Anthropogenic Global Warming Begin?
By WUWT Regular “Just The Facts”: Note: This article builds upon a previous article, When Did Global Warming Begin?, which offers highly recommended background for this article. There appears to…
Turning airliners into flying weather stations
From Scripps Institute New Airborne GPS Technology for Weather Conditions Takes Flight First-time demonstration led by Scripps Institution of Oceanography captures key meteorological data from aircraft, along with the potential…
Crowdsourcing A Full Kernel Cascaded Triple Running Mean Low Pass Filter, No Seriously…
Image Credit: Climate Data Blog By Richard Linsley Hood – Edited by Just The Facts The goal of this crowdsourcing thread is to present a 12 month/365 day Cascaded Triple Running Mean…
Will Global Cooling Continue in 2014? (Now Includes January Data)
Image Credit: WoodForTrees.org Guest Post By Werner Brozek, Edited By Just The Facts You may have seen the following recent articles (1, 2 and 3) by Walter Dnes on his…
Another Year, Another Nail in the CAGW Coffin (Now Includes December Data)
Image Credit: WoodForTrees.org Guest Post By Werner Brozek, Edited By Just The Facts CAGW refers to Catastrophic Anthropogenic Global Warming. Few people doubt that humans have some influence on climate,…
2013 Was Not A Good Year For Catastrophic Anthropogenic Global Climate Warming Change Disruption Weirding Ocean Acidification Extreme Weather, etc.
Image Credit: European Space Agency – CryoSat By WUWT regular “Just The Facts” For anyone keeping track, 2013 has not been a good year for those who propagate the Catastrophic…
HadCRUT4 is From Venus, GISS is From Mars (Now Includes November Data)
Image Credit: WoodForTrees.org Guest Post By Werner Brozek, Edited By Just The Facts With apologies to John Gray, it can be seen from the above graph that the two data…
Could the Perspectives of Cowtan and Way Negate RSS's 17 Year Pause? (Now Includes all October Data except Hadcrut)
Image Credit: WoodForTrees.org Guest Post By Werner Brozek, Edited By Just The Facts In reference to my previous article RSS Reaches Santer’s 17 Years, and taking into account the good…
A Big Picture Look At “Earth’s Temperature” – Santer 17 Update
Image Credits: NASA, BP.Blogspot.com, Wikimedia.org By WUWT regular “Just The Facts” NOAA’s State of the Climate In 2008 report found that: The simulations rule out (at the 95% level) zero…
RSS Reaches Santer's 17 Years
Image Credit: WoodForTrees.org Guest Post By Werner Brozek, Edited By Just The Facts RSS stands for Remote Sensing Systems, which is a satellite temperature data set similar to the University…
Statistical Significances – How Long Is "The Pause"? (Now Includes September Data)
Image Credit: WoodForTrees.org Guest Post By Werner Brozek, Edited By Just The Facts, Update/Additional Explanatory Commentary from Nick Stokes UPDATE: RSS for October has just come out and the value…
Antarctic Sea Ice Didn't Get The Memo That It Was Supposed To Melt
Image Credit: Cryosphere Today – University of Illinois – Polar Research Group By WUWT Regular Just The Facts Per the graph above, Antarctic Sea Ice Extent has remained above the…
Global Sea Ice Overview, Walrus Gathering and Northern Regional Sea Ice Retrospective
Image Credit: Cryosphere Today – University of Illinois – Polar Research Group By WUWT Regular Just The Facts For those beating the “imminent Arctic ice death spiral” drum, 2013 has…
RSS Flat For 200 Months (Now Includes July Data)
[NOTE: RSS is a satellite temperature data set much like the UAH dataset from Dr. Roy Spencer and John Christy – Anthony] Image Credit: WoodForTrees.org Guest Post By Werner Brozek,…
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