In July 2003, Tim Osborn advised Tom Crowley that there were multiple versions of Yamal (and Tornetrask) and that he needed to contact Briffa prior to using: The other files are “tornad.rcs” and “yamal.rcs” which are RCS-standardised tree-ring width series. I would really strongly suggest that you contact Keith Briffa about exactly what these series … Continue reading Difference in Yamal Versions “Not Insignificant”