Tree ring cross dating
The first of these chronologies was based on all visually crossdated radii and the other on radii for which crossdating had been independently verified.
Signal strength was higher in the verified chronologies.
The program is small enough to be used on a routine basis with a large number of trees.
As the chronologies must be free from errors, the program is more suited to the study of oaks than coniferous trees.
As soil water declines through the summer, the cells become thicker-walled and more dense.
Thus each annual ring consists of early (light) and late (dark) wood. Douglass, the 'father' of dendrochronology was interested in the affect of sunspots on the earths climate.
Archaeologists sometimes study the ring patterns in beams or other pieces of wood from archaeological sites to help date the sites; they may also study the ring patterns to infer the local climatic history.
Potential physiological explanations for these results are discussed.
Crossdating success differed between radial azimuth appears to affect crossdating success.
We developed two chronologies for each of the species studied.
The banding patterns on the cores correspond to a close-up view of the cross section of a tree.
This item is part of the Tree-Ring Research (formerly Tree-Ring Bulletin) archive.