Tag Archives: Temperature record

Claim: How the IPCC arrived at climate sensitivity of about 3 deg C instead of 1.2 deg C.

Posted on May 18, 2013 by

Guest essay by Girma Orssengo, PhD 1) IPCC’s 0.2 deg C/decade warming rate gives a change in temperature of dT = 0.6 deg C in 30 years IPCC: “Since IPCC’s first report in 1990, assessed projections have suggested global average … Continue reading →

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Posted in Climate sensitivity, IPCC | Tagged , , , , , , , | 109 Comments

An analysis of night time cooling based on NCDC station record data

Posted on May 17, 2013 by

Guest post by Mike Crow Figure 1 Night time temperature profile of a clear sky night in NE Ohio. 8:28pm Sunset/6:16am Sunrise Climate science is all about surface temperature trends. The problem with this is that the CAGW is a … Continue reading →

Posted in Climate data | Tagged , , , | 96 Comments

Periodic climate oscillations

Posted on May 4, 2013 by

Guest essay by: Horst-Joachim Lüdecke, EIKE, Jena, Germany Alexander Hempelmann, Hamburg Observatory, Hamburg, Germany Carl Otto Weiss, Physikalisch-Technische Bundesanstalt Braunschweig, Germany In a recent paper [1] we Fourier-analyzed central-european temperature records dating back to 1780. Contrary to expectations the Fourier … Continue reading →

Posted in Climate data | Tagged , | 101 Comments

Temperature change in perspective

Posted on April 25, 2013 by

Guest post by Ed Hoskins The UK Met Office long term Central England Temperature record[1] has kept a continuous and consistent data set since the 1660s. It appears to be reliable and to have maintained its quality. It has not … Continue reading →

Posted in Temperature | Tagged , , , , , , , | 49 Comments

Cold and snow wave grips the USA, nearly 10,000 cold and snow records set in the last six weeks

Posted on April 23, 2013 by

Paging Seth Borenstein! 9787 new cold and snow records since March 13th If this were a month of a heatwave across thus USA, like last July, you can bet it would be MSM headlines all over the place and breathless … Continue reading →

Posted in records, Weather | Tagged , | 87 Comments

Marcott issues a FAQ on their paper

Posted on March 31, 2013 by

This is from Real Climate, who played the “he who must not be named” game again in not pointing out criticisms. Gavin dissapoints. UPDATE: McIntyre responded earlier today with The Marcott Filibuster Marcott et al have posted their long-promised FAQ at … Continue reading →

Posted in Marcott et al proxy paper | Tagged , | 60 Comments

February 2013 global surface temperature – at normal

Posted on February 28, 2013 by

Dr. Ryan Maue posted one of his WeatherBell analysis maps on Twitter today, and the result is no Headline maker, it is simply “normal”. He writes (image follows):

Posted in Climate data | Tagged , | 108 Comments

Boulder Escapes Global Warming

Posted on February 19, 2013 by

Guest post by Sam I. Outcalt Abstract: The historic record of the mean annual air temperature record at Boulder does not display the major “global” climate transitions detectable in the total annual precipitation record. Hurst ReScaling is demonstrated to be … Continue reading →

Posted in Climate data, Weather_stations | Tagged , , , , , | 32 Comments

Preliminary comments on Hausfather et al 2013

Posted on February 13, 2013 by

There’s a new paper out today, highlighted at RealClimate by Hausfather et al titled Quantifying the Effect of Urbanization on U.S. Historical Climatology Network Temperature Records and published (in press) in JGR Atmospheres. I recommend everyone go have a look … Continue reading →

Posted in Climate data, UHI, Watts et al 2012 | Tagged , , , | 106 Comments

Hansen’s NASA GISS – cooling the past, warming the present

Posted on January 18, 2013 by

The Climate of Gavin: How GISS Have Changed The Temperature Record Since 2008 Guest post by Paul Homewood I ran a post yesterday, showing how the latest version of GISSTEMP had changed from using Hadley/Reynolds to ERSST for ocean temperatures, with … Continue reading →

Posted in Gavin Schmidt, James Hansen, NASA GISS | Tagged , , , , , , , | 67 Comments

Unique paper looks for natural factors in station data–shows significant probabilities of natural signal

Posted on January 10, 2013 by

Since we have been paying a lot of attention to the surface record given the recent revelations surrounding the adjustments to data and NOAA’s release of the State of the Climate  Report claiming that the USA had the hottest year … Continue reading →

Posted in Climate data, UHI | Tagged , , , , , , | 51 Comments

Circularity of homogenization methods

Posted on October 15, 2012 by

Guest post by David R.B. Stockwell PhD I read with interest GHCN’s Dodgy Adjustments In Iceland by Paul Homewood on distortions of the mean temperature plots for Stykkisholmur, a small town in the west of Iceland by GHCN homogenization adjustments. … Continue reading →

Posted in Climate data, GHCN, Weather_stations | Tagged , , , , , | 137 Comments

Is this what global warming looks like? Over 2000 new low temperature records set in October

Posted on October 14, 2012 by

In the continental USA, there were 137 high temperature type records versus 857 low temperature type records this past week , a 6-1 difference. Last week there were 1154 low temperature type records putting the two week total for October at 2011. There … Continue reading →

Posted in records, snowfall, Temperature, Weather | Tagged , , | 55 Comments

Dr Jeff Masters shows why siting (and instrumentation) matters – Death Valley steals all time temperature record from Libya

Posted on September 13, 2012 by

I had to chuckle when I read this. Dr. Jeff Masters writes about the newly discovered siting and instrumentation issues that takes away the all time temperature record from Libya. Let’s hope it doesn’t cause any riots. Masters writes: As … Continue reading →

Posted in records, Temperature | Tagged , , , , , , , , , | 100 Comments

Lies, Damn Lies, and Anoma-Lies

Posted on August 26, 2012 by

Anomalies are unsuitable measure of global temperature trends Guest post by David M. Hoffer An anomaly is simply a value that is arrived at by comparing the current measurement to some average measurement.  So, if the average temperature over the … Continue reading →

Posted in Climate data | Tagged , , | 159 Comments

July was also the 329th consecutive month of positive upwards adjustment to the U.S. temperature record by NOAA/NCDC

Posted on August 19, 2012 by

I’ve noticed there’s a lot of frenetic tweeting and re-tweeting of this “sound bite” sized statement from this Climate Central piece by Andrew Freedman. July was the fourth-warmest such month on record globally, and the 329th consecutive month with a … Continue reading →

Posted in Climate data, Weather_stations | Tagged , , , , , , | 154 Comments

Detecting regime shifts in climate data – the modern warming regime ended in 1997

Posted on July 3, 2012 by

The Analysis of the Global Change using Hurst Re Scaling S.I.Outcalt : Emeritus Professor of Physical Geography, University of Michigan Abstract: Three data sets used to document the case for anthropogenic global warming were analyzed using Hurst Rescaling. The analysis … Continue reading →

Posted in Climate data | Tagged , , | 92 Comments

May UAH Global Temperature – unchanged

Posted on June 4, 2012 by

UAH Global Temperature Update for May 2012: +0.29°C By Dr. Roy Spencer The global average lower tropospheric temperature anomaly for May 2012 (+0.29 °C) changed little from April (+0.30 °C), with some warming to near-average temperatures in the tropics being … Continue reading →

Posted in Climate data | Tagged , , , , , , , | 56 Comments

An analysis of the Central Netherlands Temperature record

Posted on May 17, 2012 by

Many readers are familiar with the Central England Temperature Record (CET), now Frank Lansner investigates the Central Netherlands Temperature Record (CNT). Long, but enlightening. – Anthony Guest post by Frank Lansner Instead the KNMI has decided only to make available … Continue reading →

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

UAH Global temperature, up in April

Posted on May 10, 2012 by

UAH Global Temperature Update for April 2012: +0.30°C By Dr. Roy Spencer The global average lower tropospheric temperature anomaly increased again in April, 2012, to +0.30°C., with warming in both Northern and Southern Hemispheres, but slightly cool conditions persisting in … Continue reading →

Posted in Climate data | Tagged , , , , , , , | 101 Comments