Techniques for Sampling and Analysis in Dendrochronology

We now know what dendrochronologists do. They examine tree rings. But precisely how do they do this? How do they collect the data? How do they analyze it? This is a very involved question, but let's try to answer it by investigating the field practices of the dendrochronologist, as well as the analytical techniques they employ, including the computer software that is relevant to this task in the modern age.