Regular correspondent David Stockwell has set up a new blog and has posted an interesting comment on Briffa, about which he says:
Have become interested in checking out dendroclimatology from the ENM point of view – particularly evaluating the model used for functional responses of alpine trees to temperature. All studies in Briffa et al. 2001 (figure below) invariably use a linear model, OLS fit of the proxy to temperature be it tree ring width (TRW) or density (MXD). It is of course not possible for tree growth to increase indefinitely with temperature increases – it has to be limited. The obvious choice for a more accurate model of tree response is a sigmoidal curve.
Drop in on him and say hello
.John A adds: I’ve added David Stockwell’s blog and Luboà…⟠Motl’s Reference Frame to the “Weblogs and Resources” link in the sidebar