When comparing radiocarbon dates with dates derived from tree rings, known as dendrochronological dating, the dates only agree accurately as far back as A.D. 640, and only generally well back to the time of Christ. ❋ Unknown (2010)
Correctly identifying the point at which an otherwise useful dendrochronological temperature proxy model goes off the rails, so they can stop using it as part of their derived model, is also perfectly correct; that's what you're supposed to do with informational proxies. ❋ Unknown (2010)
Another important result of dendrochronological dating of large samples of subfossil wood is the ability to calculate the relative abundance of Siberian spruce in forest stands of the area, which is an index or proxy for the degree of continentality of the climate. ❋ Unknown (2009)
All the current dendrochronological verification tests except the CE statistic are described in Fritts 1976, which uses the term Reduction of Error RE. ❋ Unknown (2007)
What would it mean if there was a close matching between the dendrochronological work and the uncorrected temperature record? ❋ Unknown (2007)
Lindl.…first dendrochronological investigation of yellow-cedar trees at montane sites on Vancouver Island and considers the effects of climate on the radial growth of yellow-cedar… ❋ Unknown (2007)
The assumption, which is part of the dendrochronological **theory** that is in play, is an assumption of sufficiently similar past conditions. ❋ Unknown (2006)
Remarkably DWJ06 make the same point: thus we have the remarkable situation of two dendrochronological studies published in the same week, making completely opposite claims about the correlation of bristlecones and foxtails to gridcell temperature. ❋ Unknown (2006)
Let us set aside for the moment contentious dendrochronological, ice core and diatom proxies. ❋ Unknown (2006)
This, however, requires experience with dendrochronological samplings and chronology development. ❋ Unknown (2006)
The draw-back is that we cannot represent the real world that realistically– we cannot grow bristle cone pines inside the computer, so we have to simplify the problem and get something that could look like a dendrochronological -or other proxy, time series. ❋ Unknown (2006)
I said that that factor alone doomed the “science” of dendrochronological temperature reconstruction using the current methods. ❋ Unknown (2006)
The assumption of invariant conditions is a falsifiable assumption embedded within dendrochronological **theory**. ❋ Unknown (2006)
It was ill-equipped to deal with issues of ethics, audit, statistical robustness, dendrochronological proxy robustness or multiproxy combinations. ❋ Unknown (2006)
That assumption of invariance and the resulting theory that leads to dendrochronological temperature reconstructions, makes the prediction that such reconstructions must needs be in accord with other details we know about the past. ❋ Unknown (2006)
When, a while ago, you started the thread about the upside-down quadratic nature of the temperature-ring width relationship, I said that that factor alone doomed the “science” of dendrochronological temperature reconstruction using the current methods. ❋ Unknown (2006)
