Vous avez cherché: tree ring planters (Espagnol - Anglais)

an introduction to tree ring dating.
an introduction to tree ring dating.

http://skepticalscience.com/tree-ring-proxies-divergence-problem.htm
http://skepticalscience.com/roy-spencers-great-blunder-part-3.html

http://www.skepticalscience.com//tree-ring-proxies-divergence-problem.htm
http://www.skepticalscience.com/satellite-measurements-warming-troposphere.htm

time, trees, and prehistory: tree-ring dating and the development of north american archaeology 1914-1950.
time, trees, and prehistory: tree-ring dating and the development of northamerican archaeology 1914-1950.

considerable care must be taken in the averaging process; for example, if a certain region has a large number of tree ring records, a simple average of all the data would strongly over-weight that region.
considerable care must be taken in the averaging process; for example, if a certain region has a large number of tree ring records, a simple average of all the data would strongly over-weight that region, and statistical techniques are used to avoid such over-weighting.