Category Archives: UK Met Office

Spherical triangulation of Hadcrut4.5 = Cowtan & Way

The spatial integration of irregular temperature data (CRUTEM4) using spherical triangulation removes any coverage bias.  I have made a spherical triangulation of the CRUTEM4 station data combined with HSST3 ocean temperature data. This is essentially Hadcrut4.5, but instead of using a (lat,lon) … Continue reading

Posted in AGW, Climate Change, climate science, Institiutions, Science, UK Met Office | Tagged | 6 Comments

Kriging biases in global temperature data

I have made a new calculation of global temperatures using 7300 NOAA/NCDC V3c station data combined with HadSST3 ocean temperature. For the ocean data I use cell locations only where measurements exist for a given month.  I then make a (lat,lon) triangulation … Continue reading

Posted in AGW, Climate Change, climate science, NOAA, UK Met Office | Tagged | 12 Comments

Kriging of Hadcrut4.5 data

Here  is the result of a Gaussian ‘kriging’ of  Hadcrut4.5 temperature anomalies for February 2016. This is essentially what Cowtan & Way do. This clearly shows why the global average of the kriged data gives larger values than Hadcrut4.5 when anomalies at … Continue reading

Posted in AGW, Climate Change, climate science, UK Met Office | Tagged | 13 Comments