Tag Archives: mechanical deformation

Bristlecone Addiction in Shi et al 2013

Nov 28, 2013 – 11:34 PM

Recently, Robert Way drew attention to Shi et al 2013 (online here), a multiproxy study cited in AR5, but not yet discussed at CA. The paper by Shi et al (2013) is fairly convincing as to at least the last 1,000 years in the Northern Hemisphere. I am actually surprised that paper has not been […]

By Stephen McIntyre | Posted in Uncategorized | Also tagged , , | Comments (138)

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)