Category Archives: AGW

Nights warm faster than days.

When we are told that temperatures have risen by 1.2C since  pre-industrial times, most of us assume this simple means that daytime temperatures are increasing. So summers are getting hotter and droughts are getting more extreme, but this is not … Continue reading

Posted in AGW, Climate Change, climate science | 21 Comments

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

Posted in AGW, Climate Change, climate science, Hadley, NOAA | Leave a comment

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