Tag Archives: wilson

A Belated SI for D’Arrigo et al 2006

The other day, I noticed that the long dormant WDCP supplementary information (and here) for D’Arrigo et al 2006, of which Rob Wilson is a coauthor, had been updated on April 30, 2012. In 2005, D’Arrigo et al (then under review at JGR) had been cited by IPCC AR4. At the time, as an IPCC […]

Wilson in Kyrgyzstan

Wilson et al 2007 (previously discussed here) considers a Kyrgyzstan series that has numerous issues – the usual provenance problems unfortunately occur once again. But over and above that, it uses multiple inverse regression, a procedure used all too casually by dendros. In this case, the procedure flips over one of the ring width series […]

Rob Wilson and the Yamal Divergence

The archived information for Wilson et al 2007 contains interesting new information on an unpublished West Siberian series (Putorama, 70 31 N, 92 57E). In this case, I was actually able to obtain a better correlation to gridcell temperature than the one reported by Rob by using a gridcell closer to the actual location. This […]

"Correlates well (r = 0.70) with gridded June–July temperatures"

I’ve been re-visiting some proxy data; I noted last summer that Rob Wilson had archived a considerable amount of B.C. data in Aug 2007 and noticed that he subsequently archived the data versions as used in Wilson et al 2007 at NCDC here in Sept 2007. (Not all of Rob’s data is archived as he […]

Rob Wilson Archives Data

On July 17, 2007, Rob Wilson archived British Columbia measurement data obtained in 1997-1998 and used in Wilson and Luckman 2002, 2003 (20 ring width; 7 mxd series). The data is here: ftp://ftp.ncdc.noaa.gov/pub/data/paleo/treering/updates. Wilson et al (JGR 2007), a new article, reports on a new tree ring reconstruction from 1750 on, which Rob claims to […]

North American Upper Treeline #3

The next installment in our search for upper treeline proxies evidencing the AR4 SPM claim that : “Studies since the TAR draw increased confidence from additional data showing coherent behaviour across multiple indicators in different parts of the world” takes us to the Canadian Rocky Mountains, to a study mentioned in the Wilson and Luckman […]

IPCC and Data Access

One of the most important IPCC representations is the supposedly tremendous quality control of its review process. I’ve mentioned in passing on a number of occasions that, when I sought to obtain supporting data for then unpublished articles, IPCC threatened to expel me as a reviewer. I’ve had a few requests to recount my experience […]

Wilson et al 2007

Rob Wilson has referred us to Wilson et al 2007. In addition to being an example of site selection, Wilson et al 2007 uses a type of principal components on a tree ring network – something that should be of interest to many CA readers – and an interesting illustration of non-Mannian statistical methods within […]

Wilson, Pisaric and Gaspé

Two respected dendrochronologists wrote in criticizing my recent post averaging new white spruce chronology contributions to the ITRDB data bank. [Update: see post here with further thoughts on the location of this site. Next post in category] Rob Wilson wrote, using an uncharacteristic Gavin-esque sigh, as follows:

Wilson on Yamal Substitution

Rob Wilson has written in sharply criticizing me (Yamal Substitution #3) for a lack of a balanced presentation on the Yamal substitution, and, in particular, for not acknowledging the "clear statistical reasons (related to variance changes through time)" that he had provided me offline for why D’Arrigo et al 2006 made the Yamal substitution. Also […]

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