Tag Archives: GHCN

April H4.5-ST = 0.80C

The average anomaly for April 2017 of HADCRUT4.5 ¬†using Spherical Triangulation (ST) is 0.80C. This is 0.06C higher than the standard 5 degree gridded result (0.74C). It is the years which have high Arctic anomalies which differ the most. Here … Continue reading

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Nights warm faster

NOAA’s Global Historical Climatology Network (GHCN) publishes 3 different monthly temperature sets for each of the ~7000 weather stations. 1) Average Temperatures 2) Minimum Temperatures 3) Maximum Temperatures. Seasonal variations are averaged out over a 30 year normalisation period to … Continue reading

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Temperature data averaged 3 ways

How should you calculate annual global temperature data? We start with Hadcrut4.5 gridded monthly data defined on a 5×5 degree grid and then form the global area weighted average in 3 different ways. Integrate the annual anomaly ¬†over month,lat & … Continue reading

Posted in AGW, Climate Change, climate science, NOAA, UK Met Office | Tagged , | 9 Comments