Sharpening a Cyclical Shovel

Guest Post by Willis Eschenbach There are a number of lovely folks in this world who know how to use a shovel, but who have never sharpened a shovel. I’m not one of them. I like to keep my tools sharp and to understand their oddities. So I periodically think up and run new tests…

Mauna Loa Daily Meteorology

Guest Post by Willis Eschenbach As a confirmed data junkie, I’m fond of hourly data. The interesting processes in the climate system unfold on the scale of minutes and hours, not years. So I picked up a project I’d started a while ago, but as is too often the case I’d gotten sidetractored by ……

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…

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 on the stove flame, it doesn’t heat up instantly. Instead, the warming process starts instantly, but it takes some amount of time to actually up…

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 to improve hurricane forecasting A new GPS system aboard airplanes tracks key atmospheric conditions. GPS technology has broadly advanced science and society’s ability to pinpoint…

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, however the big debate is whether or not we are causing enough warming to have catastrophic consequences decades from now. The best evidence thus far…

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 Anthropogenic Global Warming (CAGW) Narrative, also know by a litany of increasingly nebulous buzzwords including “Climate Change“, “Climate Disruption”“, “Global Weirding”, “Ocean Acidification”, and “Extreme…

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 work already done in analyzing Cowtan and Way by Steve McIntyre, Judith Curry, Bob Tisdale, David Whitehouse, and Christopher Monckton, I will focus on one…

Cycles Without The Mania

Guest Post by Willis Eschenbach Are there cycles in the sun and its associated electromagnetic phenomena? Assuredly. What are the lengths of the cycles? Well, there’s the question. In the process of writing my recent post about cyclomania, I came across a very interesting paper entitled “Correlation Between the Sunspot Number, the Total Solar Irradiance,…

Historical Sea Surface Temperature Adjustments/Corrections aka “The Bucket Model”…

Image Credit: Bob Tisdale – bobtisdale.wordpress.com By WUWT Regular Just The Facts The recent Adjustments/Corrections to the HadCRUT4 and CRUTEM4 Temperature Data Sets by the Met Office Hadley Centre and Climatic Research Unit got me thinking about the cumulative impact of Adjustments/Corrections on our temperature records. Bob Tisdale then triggered the first vein of this…

Were Late Season Snowstorms and the Long Cold Winter Caused by Anthropogenic Global Warming or a Cold Northern Polar Region?

Image Credit: Remote Sensing Systems (RSS) By WUWT regular “Just The Facts” I recommend that everyone watch this brief Weather Channel segment titled “Blame Climate Change for Long Winter“, the video description states that, “In much of the country this winter has stretched well into spring. The Weather Channel meteorologist Julie Martin asks the experts…

A Big Picture Look At “Earth’s Temperature” – “The Pause” Update

Image Credit: NASA and BP.Blogspot.com By WUWT regular “Just The Facts” Recently there has been significant attention focused on “The Pause” in Earth’s warming, the length of “The Pause” and where “Earth’s Temperature” may go from here, e.g.: “Over the past 15 years air temperatures at the Earth’s surface have been flat while greenhouse-gas emissions…

Global Warming Over Land Is Real: CU-Boulder, NOAA Study

Image Credit: Compo et al., 2013 From the Huffington Post: The thermometers got it right. The Earth is warming, another study is reporting. Climate scientists recognize that changes in weather observation stations’ immediate surroundings — such as neighboring trees being replaced by heat-absorbing concrete — can eventually throw data from such stations into question. But…

Circular Logic not worth a Millikelvin

Guest post by Mike Jonas A few days ago, on Judith Curry’s excellent ClimateEtc blog, Vaughan Pratt wrote a post “Multidecadal climate to within a millikelvin” which provided the content and underlying spreadsheet calculations for a poster presentation at the AGU Fall Conference. I will refer to the work as “VPmK”. VPmK was a stunningly…

Crowdsourcing the WUWT “Extreme Weather” Reference Page

(Photo credits: NOAA) By WUWT regular “Just The Facts” Your help is needed in building the new WUWT “Extreme Weather” Reference Page. My recent article A Big Picture Look At “Earth’s Temperature” – “Extreme Weather” Update appears to have struck a cord with some of our Warmist friends, as I earned an “Extreme Denial” label…

A Big Picture Look At “Earth’s Temperature” – “Extreme Weather” Update

By WUWT regular “Just The Facts” Recently there have been increased efforts to link “Climate Change” and “Extreme Weather” e.g., NOAA links extreme weather to climate change CBS – July 10, 2012, “NASA scientist links climate change, extreme weather” CNN – August 6, 2012 and Get used to ‘extreme’ weather, it’s the new normal The…

A Big Picture Look At “Earth’s Temperature” – 2nd Quarter, 2012 – “What Global Warming Looks Like” Update

By WUWT regular “Just The Facts” In the US we are currently being bombarded with claims that “this summer is ‘what global warming looks like’” from the Associated Press and “summer heat wave an early indication of global warming” from MSNBC, as well as insinuations like “Record heat, derecho storm: Does global warming get blame?”…

WUWT Sea Ice Page Upgrades and Northern Regional Sea Ice Overview

By WUWT regular “Just The Facts” We are pleased to introduce an array of upgrades to the WUWT Sea Ice Page, including: Arctic Sea Ice Thickness: From the Naval Research Laboratory (NRL) – HYCOM Consortium for Data-Assimilative Ocean Modeling links to the Arctic Sea Ice Thickness 30 Day Animation at the head of this article…

A Big Picture Look At “Earth’s Temperature” – Peter Gleick Edition

By WUWT regular “Just The Facts” I recently came across a January 21st, 2012 Peter Gleick article 2011 Climate Change in Pictures and Data: Just the Facts, which appears to mimic the format and approach of my January 1st, 2012 article A Big Picture Look At “Earth’s Temperature”. What I find particularly amusing about Peter’s article…

A Big Picture Look At “Earth’s Temperature” – Quarterly Update

By WUWT regular “Just The Facts” This format received a positive response in the previous article and apparently encouraged Skeptical Science to take A Big Picture Look at Global Warming, thus this article will be updated on a quarterly basis moving forward. In their article, Skeptical Science argued that “the planet is indeed warming rapidly”…

Crowdsourced Climate Complexity – Compiling the WUWT Potential Climatic Variables Reference Page

By WUWT regular “Just The Facts” With the help of an array of WUWT reader comments, which began on this thread on January, 15th 2011, and grew on January 22nd, 2011, February 10th, 2011, February 28th, 2011, June 30th, 2011 and January 21st, 2012, I have been compiling a summary of all potential climatic variables…

Fudging in greenhouse gas stats?

From EMPA Switzerland: Sketchy emission reports revealed by Empa measurements at Jungfraujoch Fluorinated hydrocarbons are potent greenhouse gases, emission of which must be reduced under the Kyoto Protocol. If you rely on the official reports of the participating countries, the output of trifluoromethane (HFC-23) in Western Europe is indeed significantly decreasing. However, pollutant measurements carried…

NIST – more GHG measurement needed

From the National Institute of Standards and Technology (NIST) Greenhouse gases: The measurement challenge The continuing increase in the level of carbon dioxide and other “greenhouse gases” in the Earth’s atmosphere has been identified as a cause for serious concern because it may radically accelerate changes in the Earth’s climate. Developing an effective strategy for…