Dendrochronology is a science of precise dating, by the accurate counting of annual tree growth-rings, which allows dating wooden items to the year. The pattern of annual tree-rings differs each year, depending upon the growing conditions at the time. Dendrochronology uses the variations in the thickness of annual growth rings in living trees as well as old timbers to date wooden objects and buildings, by counting tree-rings back from the present on very old trees and then by successively overlapping even older timbers further back through time. The American botanist, Douglas, established the first tree-ring chronology in with a pine chronology for the south-west of America extending back to AD. Generally speaking the milder the weather the larger the tree-ring.
Technology at MSU - Andrew File System Retirement | Michigan State University
Contact seller. Seller Rating:. Used Condition: Good. Within U. Former Library book. Shows some signs of wear, and may have some markings on the inside.
The Bay Tree
Rubino , Trade Paperback. Binding: Paperback Language: english. Will be clean, not soiled or stained. Written by two long-time practitioners in the field of dendrochronology, the research is grounded in the fieldwork data of approximately structures and landscapes.
He discovered a correlation between tree rings and the sunspot cycle , and founded the discipline of dendrochronology , which is a method of dating wood by analyzing the growth ring pattern. He started his discoveries in this field in when he was working at the Lowell Observatory. During this time he was an assistant to Percival Lowell , but fell out with him when his experiments made him doubt the existence of artificial " canals " on Mars and visible cusps on Venus. Craters on the Moon and Mars are named in his honor.