Category Archives: AGW

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

Global Temperature for September 2021 is 0.81C

The average temperature was 0.81 C in September. This was up a little from August (0.76C). However 2021 is turning out to cooler than recent years with an average annual temperature with 3 months remaining of 0.69C. This makes it … Continue reading →

Posted in AGW | Tagged | 6 Comments