Tag Archives: deformation

Briffa Condemns Mann Reconstructions

Jun 16, 2013 – 3:26 PM

Not in so many words, of course. However, Briffa et al 2013 took a position on the use of radially deformed tree ring cores that would prohibit the use of strip bark bristlecones in temperature reconstructions, thereby emasculating Mann’s reconstructions. And not just the Mann reconstructions, but the majority of the IPCC reconstructions used by […]

By Stephen McIntyre | Posted in Briffa, Multiproxy Studies, Uncategorized | Also tagged , , , , , , | Comments (114)

Strip Bark Growth Pulses

Nov 11, 2010 – 12:12 PM

CA readers know that virtually all of the “independent” IPCC reconstructions purporting to compare modern and MWP temperatures use Graybill strip bark chronologies and/or Yamal. In various posts, problems with strip bark chronologies have been discussed, including discussion of Pete Holzmann’s observation based on our sampling at Almagre that strip bark trees seemed to show […]

By Stephen McIntyre | Posted in Uncategorized | Also tagged , , , , , | Comments (48)

Miracles and Strip Bark Standardization

Nov 16, 2009 – 12:16 PM

A CA reader has provided a link to an extremely interesting presentation by dendro Brian Luckman of U of Western Ontario (Rob Wilson’s thesis supervisor) at the 2008 Canadian Society of Petroleum Geologists. Reader Erasmus de Frigid draws attention to the inhomogeneity in the tree ring record created when the tree was scarred by a […]

By Stephen McIntyre | Posted in Multiproxy Studies, Noamer Treeline | Also tagged , , , , , | Comments (231)