cc: Nick McKay , Caspar Ammann , Bradley Ray , Keith Briffa , Miller Giff , Otto-Bleisner Bette , Overpeck Jonathan , Bo Vinther date: Wed, 3 Jun 2009 18:23:38 -0600 from: David Schneider subject: Re: spatial pattern to: Darrell Kaufman I don't think we should go there. Any PC analysis on proxy data will be picked apart by the skeptics, even if it yields some useful insight, and I don't recall there being anything too exciting in the pattern given the limited amount of data. Dave On Wed, Jun 3, 2009 at 5:42 PM, Darrell Kaufman <[1]Darrell.Kaufman@nau.edu> wrote: Dave and Nick: I've been thinking about the remaining holes in the manuscript. Spatial patterns are important. At one point we explored the spatial pattern of the PC scores. I think it would be good to bring this up in the SOM. I could make a dot map showing the site locations and their correlations with PC1. The upshot would be that the proxy types are not uniformly distributed, and there are too few records to discern any spatial patterns from any geographical or proxy-type bias (e.g., high-elevation ice cores). Thoughts? Darrell