Correction for MBH98 and MBH99 (27 September 2021)

There appear to have been some minor errors in infilling some grid box temperatures series from the Jones & Briffa (1992) monthly data set in Mann et al (1998) and Mann et al (1999).
We thank Hampus Söderqvist <hasa0038@student.umu.se> for bringing this to our attention. The correct surface temperature data were used in Caspar Ammann & Eugene Wahl’s reproduction of MBH98 and lead to very small differences in overall results. Their data and code can be found here:

https://projects.ral.ucar.edu/rc4a/millennium/WA_supplement.html

Last updated: DJB, 27 September 2021.