Why are the number of sites used to calculate HadCRUT4 decreasing?
By Paul Homewood
Xmetman Bruce has carried out some detailed analysis of the HADCRUT4 dataset. He has discovered that there has been an alarming drop off in the number of stations used since the 1960’s, but particularly so in the last few years. This is the case both globally and in the UK.
Looking at the UK alone, he finds that the three, high quality stations used in the CET series, Pershore, Stonyhurst and Rothamstead are NOT included, yet Heathrow is.
Well worth a read here.