The International Tree-Ring Data Bank (ITRDB) is a data repository for
tree ring
Dendrochronology (or tree-ring dating) is the scientific method of dating tree rings (also called growth rings) to the exact year they were formed. As well as dating them, this can give data for dendroclimatology, the study of climate and at ...
measurements that has been maintained since 1990 by the United States'
National Oceanic and Atmospheric Administration
The National Oceanic and Atmospheric Administration (abbreviated as NOAA ) is an United States scientific and regulatory agency within the United States Department of Commerce that forecasts weather, monitors oceanic and atmospheric conditio ...
Paleoclimatology Program and World Data Center for Paleoclimatology. The ITRDB was initially established by
Hal Fritts through the
Laboratory of Tree-Ring Research at the
University of Arizona
The University of Arizona (Arizona, U of A, UArizona, or UA) is a public land-grant research university in Tucson, Arizona. Founded in 1885 by the 13th Arizona Territorial Legislature, it was the first university in the Arizona Territory.
Th ...
through a grant from the US
National Science Foundation
The National Science Foundation (NSF) is an independent agency of the United States government that supports fundamental research and education in all the non-medical fields of science and engineering. Its medical counterpart is the National ...
after the First International Workshop on
Dendrochronology
Dendrochronology (or tree-ring dating) is the scientific method of dating tree rings (also called growth rings) to the exact year they were formed. As well as dating them, this can give data for dendroclimatology, the study of climate and atmos ...
in 1974. The ITRDB accepts all tree ring data with sufficient metadata to be uploaded, but was founded with a focus on tree ring measurements intended for
climatic studies. Specific information is required for uploading data to the data base, such as the raw tree ring measurements, an indication of the type of measurement (full ring widths, earlywood, latewood), and the location, but the types of data and the rules for accuracy and precision of the primary data, tree-ring width measurements, are decided by the dendrochronologists who are contributing the data rather than by the NOAA or another governing organization.
See also
*
Dendrochronology
Dendrochronology (or tree-ring dating) is the scientific method of dating tree rings (also called growth rings) to the exact year they were formed. As well as dating them, this can give data for dendroclimatology, the study of climate and atmos ...
References
External links
International Tree-Ring Data Bank Ultimate Tree-Ring Web PagesLaboratory of Tree-Ring Research University of Arizona
{{Chronology
Archaeological databases
Dating methodologies in archaeology
Incremental dating
Scientific databases
Geochronological institutions and organizations
Dendrology