Spectral Analysis Of The Central England Temperature Record (part 2)
I utilise an engineering tool to investigate periodicity with the central England temperature record over the period 1659 - 2022
Whilst brewing part 2 of this miniseries an astute reader asked what causes ‘artefact’ within spectral plots. The simple answer to this is the distribution of values over time. In theory a truly random time series presents a wall of white noise but when you start to contract a series down to a few hundred observations that wall of noise becomes like a s…