Tag Archives: Mann

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 Steve McIntyre | Posted in Uncategorized | Also tagged , , , | Comments (74)

Antarctic RegEM

Jan 21, 2009 – 8:00 PM

Image by mark van de wouw via Flickr For discussion of new study. by Steig (Mann) et al 2009. Data: Data sets used in this study include the READER and AWS data from the British Antarctic Survey. SI Tables 1 and 2 provide listings. They leave out station identifications (a practice that “peer” reviewers, even […]

By Steve McIntyre | Posted in Steig at al 2009, Surface Record | Also tagged , , , , | Comments (175)

More on Voodoo Correlations

Jan 21, 2009 – 12:18 AM

Mann said: Although 484 (~40%) pass the temperature screening process over the full (1850–1995) calibration interval, one would expect that no more than ~150 (13%) of the proxy series would pass the screening procedure described above by chance alone. Reader DC said: Of the 484 proxies passing the 1850-1995 significance test, 342 also passed both […]

By Steve McIntyre | Posted in Data, Mann et al 2008, Proxies, Spurious | Also tagged , , , | Comments (161)

Five Monsoon O18 Series

Dec 4, 2008 – 11:00 AM

Jud Partin observed yesterday that a “fantastic new record” had been recently (early Nov 2008) published from Wanxiang, China. Zhang et al report that their new record is “broadly similar” to the reconstructions of Esper, Mann and Jones 2003 and Moberg as follows: The Wanxiang record, with a d18O range of ~1.3 per mil (‰) […]

By Steve McIntyre | Posted in Mann et al 2008, Proxies, Speleothem, Thompson | Also tagged , , , , , | Comments (107)
Follow

Get every new post delivered to your Inbox.

Join 453 other followers