Dendrochronology cross dating
As far as assumptions go, I couldn't really find much about this. Wdanwatts , (UTC)Surely this is all depends on what's being counted and how. Without knowing that, it's not possible to say that years with '0' values are included to aid comparison and correlation.In 1901, he noticed ring-width variations on a cut log and reasoned that these were controlled by the tree's environment (Fritts, 1976).Douglass (1920) illustrated the relationship between climate and ring width by plotting both against time, and introduced the technique of cross dating by correlating ring-width signatures (sequences of wide and narrow rings) among trees distributed over large areas.After reading, I understand better the concept of tree rings and some of the finer details that complicate the issue (such as alternating poor/favorable conditions and "missing rings"), but I don't understand all of the applications to understanding past climates. Please feel free to edit the article to make these points clear.
The sources used in the article are mostly peer-reviewed and seem relevant for the most part. Jclerman (talk) , 9 November 2008 (UTC) How does dendrochronolgy correlate with C14 dating?
Cronin's textbook mentions that calibration is one of the most important aspects of using proxies, and it is only briefly mentioned in the article. To improve this article, I would have broadened its scope.
Dendrochronology cross dating comments