Tag Archives: GHCN

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

Posted in AGW, Climate Change, climate science, NOAA | Tagged , | 39 Comments

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