Category Archives: Institiutions

Global Temperature update

The latest HadSST4 data release allows me to calculate global temperatures up to March 2022 based on spherical triangulation. HadSST4 results in higher temperatures compared to HadSST3 relative to the baseline of 1961-1990. I combine this with GHCN-V4C station data. … Continue reading

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Homogenisation of temperature data

How accurate is the pair-wise homogenisation algorithm applied to GHCN land temperature measurements and the instrumentation corrections made to sea surface temperatures? Long term station measurements are affected  by a station’s physical relocation, by environmental changes (urban development)  and by … Continue reading

Posted in AGW, Hadley, NOAA, Uncategorized | Tagged | 19 Comments

2021 finishes as 4th Warmest year

The Average temperature anomaly for 2021 was O.80 C above the 1961-1990 average. This is cooler than recent years probably due to La Nina. The warmest year overall was 2020 reaching 0.90 C. These calculations (spherical triangulation) are now based … Continue reading

Posted in climate science, Hadley, NOAA | Tagged | 8 Comments