Tag Archives: soderqvist

MBH98 Weights – an Update

Nov 26, 2023 – 2:10 PM

In numerous ancient Climate Audit posts, I observed that all MBH98 operations were linear and that the step reconstructions were therefore linear combinations of proxies, the coefficients of which could be calculated directly from the matrix algebra (described in a series of articles.)   Soderqvist’s identification of the actual proxies enables calculation of the AD1400 weights […]

By Stephen McIntyre | Posted in Uncategorized | Also tagged , | Comments (58)

Mann’s Other Nature Trick

Nov 24, 2023 – 2:51 PM

In today’s post, I will report on some excellent work on MBH98 by Hampus Soderqvist, who discovered an important but previously unknown Mike’s Nature Trick: Mann’s list of proxies  for AD1400 and other early steps was partly incorrect (Nature link now dead – but see  NOAA or here).  Mann’s AD1400 list included four series that […]

By Stephen McIntyre | Posted in Uncategorized | Also tagged , | Comments (52)