Monthly Archives: November 2019

CRUTEM4 is cooler than GHCN-V4

The October 2019 global temperature anomaly that I calculate based on the latest CRUTEM4 station data is 0.15C cooler than that using GHCN-V4 (0.79C asĀ  compared to 0.96C). The temperature series are calculated in exactly the same way and both … Continue reading

Posted in AGW, Climate Change, climate science, CRU, Hadley, NOAA | Tagged | 7 Comments

October temperatures rise 0.18C

October saw a large increase of 0.18C in the global average temperature (anomaly) since September. These results use a spherical triangulation of land (GHCN-V4) and ocean (HadSST3) temperature data with a baseline of 1961-1990. The methodology is described in this … Continue reading

Posted in AGW, Climate Change, climate science, GCM, Hadley, NOAA | 1 Comment

A comparison of HadCRUT4.6 using Icosahedral binning

The classic HadCRUT processing calculates average surface temperatures on a 5×5 grid in Latitude and Longitude. To calculate the global average a spatial weighting of cos(Lat) must be applied. The main advantage of using a more complex 3D Icosahedral grid … Continue reading

Posted in AGW, Climate Change, climate science, CRU, Hadley | 5 Comments