Juckes has archived 64 reconstruction variations in the file mitrie_new_reconstructions_v01.csv (mirrored in mitrie_new_reconstructions_v01.nc). The 9th platter in the jukebox is mr_mbh_1000_cvm_nht_01.02.001_pc – which is some kind of composite-variance-match version of MBH (whle he has 1 CVM version each for Esper, Hegerl, Jones and Moberg, he has no fewer than 7 different versions for MBH and […]
I vaguely remember an English joke about how certain Oxford colleges qualified prospective fellows. They’d invite them to a garden party and serve them a bowl of cherries and see how they disposed of the pits. I forget what the candidates were supposed to do. In the Team Euro Moberg composite, Team Euro has constructed […]
The Euro Hockey Team (EHT) present a variety of results using CVM methods on proxies from 5 canonical Team studies: Jones Briffa 1998; MBH99; Esper 2002; Moberg 2005 and Hegerl 2006. CVM (take the average of scaled proxies and re-scale the average to match the instrumental record) seems to me to be a less dangerous […]
Team Euro’s CPD submission online here has done a commendable job archiving data in their supplementary information online here . It’s by no means perfect, but it’s a big improvement in practices in the field. So while they’ve chosen to unfairly disparage my own efforts in respect to source code, perhaps one can construe the […]
This is not going to be an especially interesting post for most (probably any) of you, but I want to document a couple of points mostly as an aide-memoire for myself so I don’t forget. I actually learned something new about the Jones et al reconstruction from the Euro Team study. I’ve been able to […]
I raise here a troubling issue pertaining to potential academic misconduct by the Euro Hockey Team. They stated: The code used by MM2005 [the GRL article] is not, at the time of writing, available, …. First, this statement is obviously untrue. The code used in McIntyre and McKitrick 2005 is available at the SI to […]
Principal components do not necessarily have an orientation. However, when you are making principal components from networks of tree ring widths, it’s a good idea to try to think about physical interpretations. Here’s a funny example where the Euro Hockey Team has lost its way. They observe the following: for the proxy principal components in […]
Readers of this blog are familiar with the Yamal subsitution. Briefly, Briffa et al 1995 reported in Nature that 1032 was the coldest year of the millennium based on no more than 3 poorly dated and short cores in the 11th century. Subsequently new cores were dated to the 11th century by Schweingruber, resulting in […]
Here is the paper from MITRIE on climate reconstructions M. N. Juckes, M. R. Allen, K. R. Briffa, J. Esper, G. C. Hegerl, A. Moberg, T. J. Osborn, S. L. Weber, E. Zorita, Millennial temperature reconstruction intercomparison and evaluation, Climate of the Past Discussions, 2, 1001-1049, 2006 There has been considerable recent interest in paleoclimate […]
Climate Audit 