HADCRUT4 for 2013: Almost a DNF in Top Ten Warmest

More Year-End Results

The UKMO-Hadley Centre presented its annual HADCRUT4 data a few days ago.  The HADCRUT4 annual global land+ocean surface temperature anomalies for 2013 ranked 8th.   That’s not much of a showing in a world where manmade greenhouse gases are assumed to be the control knob that regulates global surface temperatures.

Figure 1 presents a comparison of GISS LOTI, NCDC and HADCRUT4 annual global land+ocean surface temperature anomalies for the period of 1979 to 2013. Because all three suppliers use different base years, I’ve shifted them to 1981 to 2010 (base years recommended by the WMO) for the comparison.  The halt in global warming is becoming more evident in the annual data.  But the cessation of surface warming stands out like a sore thumb in the comparison of the monthly data, Figure 2.

01 Annual Comparison

Figure 1

# # # # # # # #

02 Monthly Comparison

Figure 2

Figure 3 presents the monthly HADCRUT4 data from January 1979 through December 2013 with its standard base years of 1961 to 1990.  The value for December was approximately +0.49 deg C, which is a drop of about -0.1 deg C since November.

03 HADCRUT 1979 Start

Figure 3

For further information about the three datasets, refer to the most recent monthly update.

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About Bob Tisdale

Research interest: the long-term aftereffects of El Niño and La Nina events on global sea surface temperature and ocean heat content. Author of the ebook Who Turned on the Heat? and regular contributor at WattsUpWithThat.
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One Response to HADCRUT4 for 2013: Almost a DNF in Top Ten Warmest

  1. Thanks Bob. Good graphs are always welcome.
    I see the warmest global temperature databases showing no warming since 2002 and the hiatus continuing. Still waiting for ENSO to say something.

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