Category Archives: Climate data

Is the Climate SELL Signal Imminent?

What a simple statistical investment tool can tell us about the climate Guest essay by Eric Worrall One of the simplest statistical tools used by investors is a moving average plot. If you plot the average share price of a … Continue reading

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Posted in Climate data, Climate News | Tagged , , , , | 114 Comments

Important study on temperature adjustments: ‘homogenization…can lead to a significant overestimate of rising trends of surface air temperature.’

From the “we told you so” department comes this paper out of China that quantifies many of the very problems with the US and global surface temperature record we have been discussing for years: the adjustments add more warming than … Continue reading

Posted in Adjustments/Corrections, Climate data, GHCN, Weather_stations | 195 Comments

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 … Continue reading

Posted in Climate data, NASA GISS, NCDC, UKMO HADCRUT4 | 132 Comments

NASA revises Earth’s Radiation Budget, diminishing some of Trenberth’s claims in the process

From the “settled science” department comes this new revision of Earth’s entire radiation budget. Many WUWT readers can recall seeing this radiation budget graphic from Kenneth Trenberth in 2009: Source: Trenberth et al. 2009 http://echorock.cgd.ucar.edu/cas/Staff/Fasullo/my_pubs/Trenberth2009etalBAMS.pdf That figure in a slightly … Continue reading

Posted in Climate data, Climate News, Climate sensitivity, Earth, IPCC | 211 Comments

Upwelling Solar, Upwelling Longwave

Guest Post by Willis Eschenbach The CERES dataset contains three main parts—downwelling solar radiation, upwelling solar radiation, and upwelling longwave radiation. With the exception of leap-year variations, the solar dataset does not change from year to year over a few … Continue reading

Posted in Climate data, Radiative Imbalance, Solar | Tagged , , | 348 Comments

On The Stability and Symmetry Of The Climate System

Guest Post by Willis Eschenbach The CERES data has its problems, because the three datasets (incoming solar, outgoing longwave, and reflected shortwave) don’t add up to anything near zero. So the keepers of the keys adjusted them to an artificial … Continue reading

Posted in Climate data, Radiative Imbalance, Solar | Tagged , , , , | 306 Comments

The Original Temperatures Project

Guest essay by Frank Lansner Presentation of the Original Temperatures project. Contents: 1. Introduction 2. Methods 3. Adjustments of temperature data 3.1. Adjustments: HISTALP – by the Austrian ZAMG 3.2. Adjustments: ECA&D – by the Dutch KNMI 3.3. Adjustments: The BEST project 3.3.1 BEST / Austria … Continue reading

Posted in Climate data, Temperature | Tagged , , , , , | 196 Comments

Global Temperature Report: December 2013

2013 was 4th warmest year in the satellite era From University of Alabama, Hunstville. Global climate trend since Nov. 16, 1978: +0.14 C per decade December temperatures (preliminary) Global composite temp.: +0.27 C (about 0.49 degrees Fahrenheit) above 30-year average … Continue reading

Posted in Climate data | Tagged , | 417 Comments

First time in 20 years – more daily record lows than daily highs that were either tied or set in 2013

2013 was a cool year in many ways. Most interestingly, the last year this split between highs and lows happened in the USA, in 1993, we had the eruption from Mt. Pinatubo the prior year which ejected so much aerosol … Continue reading

Posted in Aerosols, Climate data, records, Temperature, Volcanoes, Weather | Tagged , , | 52 Comments

Claim: November 2013 is the ‘warmest ever’ – but will the real November 2013 temperature please stand up?

Lots of clima-hullaballo this week in the media thanks NOAA and this announcement in NOAA’s “State of the Climate” report seen here: http://www.ncdc.noaa.gov/sotc/global/ They state: The combined average temperature over global land and ocean surfaces for November 2013 was record … Continue reading

Posted in Climate data, Temperature | Tagged , , , , | 135 Comments

WUWT Video – Zeke Hausfather explains the new BEST surface data set at AGU 2013

I mentioned the poster earlier here. Now I have the video interview and the poster in high detail. See below.

Posted in Climate data, WUWT-TV | Tagged , , , | 122 Comments

Whither went the warmer weather?

17 years, 3 months with no global warming By Christopher Monckton of Brenchley The Long Pause just got three months longer. Last month, the RSS monthly global mean lower-troposphere temperature anomalies showed no global warming for exactly 204 months – … Continue reading

Posted in Climate data | Tagged , | 336 Comments

UAH Global temperature, down slightly, “the pause” continues

UAH v5.6 Global Temperature Update for Nov. 2013: +0.19 deg. C by Roy W. Spencer, Ph. D. The Version 5.6 global average lower tropospheric temperature (LT) anomaly for November, 2013 is +0.19 deg. C, down from +0.29 deg. C in … Continue reading

Posted in Climate data | Tagged , , , , , , | 98 Comments

Cowtan and Way’s ‘pausebuster’, still flat compared to models

Steve McIntyre writes: In the context of IPCC SOD FIgure 1.5 (or similar comparison of models and observations), CW13 is slightly warmer than HadCRUT4 but the difference is small relative to the discrepancy between models and observations; the CW13 variation … Continue reading

Posted in Arctic, Climate data, Modeling | Tagged , , , , , | 95 Comments

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 trends for intervals of 15 yr or more, suggesting that … Continue reading

Posted in Climate data, measurement, Temperature | Tagged , , , | 175 Comments

UAH October temperatures, part 2

Note that the original October report on WUWT from a press release issued accidentally by UAH is superseded by this report. – Anthony UAH v5.6 Global Temperature Update for October, 2013: +0.29 deg. C By Dr. Roy Spencer We finally … Continue reading

Posted in Climate data | Tagged | 34 Comments

Virginia is for warmers? Data says no.

A new tool for climate data visualization is showcased David Walton writes to tell us about a satirical piece by Mark Steyn – titled Virginia is for Warmers I was blessedly out of the country on Tuesday, so I’m belatedly catching up … Continue reading

Posted in Climate data | Tagged , , , , , , | 53 Comments

UAH global temperature for October, down significantly

Down from 0.37 in September. Global Temperature Report: October 2013

Posted in Climate data | Tagged , | 47 Comments

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 … Continue reading

Posted in Climate data, Hiatus in Global Warming, NASA GISS, NCDC, Temperature, UKMO HADCRUT4 | 26 Comments

How long before we reach the catastrophic 2°C warming?

Guest essay by Neil Catto The other day I conducted a presentation using the UK CET, like I have on several occasions. Along with explaining it as the longest recognised instrumental record of historical temperature anywhere on Earth, it is … Continue reading

Posted in Climate data | Tagged , , | 128 Comments