date: Tue Jun  3 12:58:48 2008
from: Tom Melvin <t.m.melvin@uea.ac.uk>
subject: Divergence
to: Kurt

Kurt,

I criticised Walter Oberhuber's methods during his talk. He found divergence using curve-fitting methods. He gave me a copy of his paper (2008 - Trees). He has a good set of trees, suitable for demonstrating the absence of divergence. Do you work with/know his group? 

Also I tried a transform with simple RCS method. The latest 140 years of tree growth do not fit the lower growth levels of the previous millennia. See attached. I will try other standardisation e.g. multiple curves etc and also try and find lower climate values to produce a wider distribution.

Tom  
