UK Regional Rainfall Analysis 1873 – 2024 (part 2)
Encouraged by readers I set about analysing HadUKP monthly rainfall records for all eight regions of the UK mainland. Today I look at variance within the regional rainfall record
Well-seasoned readers will know that when I reach for the phrase ‘variance’ I am inevitably going to be pushing this as a quantitative measure of the rather woolly notion that has come to be known as climate change. This cunning idea with extra raisins was first floated in this article.
Over the last couple of decades alarmism has flipped from pushing the monotone message of global warming to a colourful one of climate change such that anything out of the ordinary - and I mean absolutely anything - can be rubber stamped with the extraordinarily bizarre CO2-is-a-death-gas ideology.
Statisticians are used to handling things that are changing over time, or that pop up as being unusual in some way, and this variation is formalised as a computed statistic called variance (being a close cousin of standard deviation). If things are getting wilder then the variance/standard deviation of a data series will start to inflate over time. It’s that simple. The very keen might also want to bone-up o…