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 in a tree. As well as dating them, this can give data for dendroclimatology, the study of climate ...
measurements that has been maintained since 1990 by the United States'
National Oceanic and Atmospheric Administration
The National Oceanic and Atmospheric Administration (NOAA ) is an American scientific and regulatory agency charged with Weather forecasting, forecasting weather, monitoring oceanic and atmospheric conditions, Hydrography, charting the seas, ...
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 university, public Land-grant university, land-grant research university in Tucson, Arizona, United States. Founded in 1885 by the 13th Arizona Territorial Legislature, it ...
, with a grant from the US
National Science Foundation
The U.S. National Science Foundation (NSF) is an Independent agencies of the United States government#Examples of independent agencies, independent agency of the Federal government of the United States, United States federal government that su ...
, following the First International Workshop on
Dendrochronology
Dendrochronology (or tree-ring dating) is the scientific method of chronological dating, dating tree rings (also called growth rings) to the exact year they were formed in a tree. As well as dating them, this can give data for dendroclimatology, ...
in 1974. The ITRDB accepts all tree ring data with sufficient metadata to be uploaded, but its founding focus was on tree ring measurements intended for
climatic studies.
Specific information is required for uploading data to the database, such as the raw tree ring measurements, an indication of the type of measurement (full ring widths, earlywood, latewood), and the location. However, 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 NOAA or any other governing organization.
See also
*
Dendrochronology
Dendrochronology (or tree-ring dating) is the scientific method of chronological dating, dating tree rings (also called growth rings) to the exact year they were formed in a tree. As well as dating them, this can give data for dendroclimatology, ...
References
External links
International Tree-Ring Data Bank Ultimate Tree-Ring Web Pages
Laboratory of Tree-Ring Research University of Arizona
{{Chronology
Archaeological databases
Dating methodologies in archaeology
Incremental dating
Scientific databases
Geochronological institutions and organizations
Dendrology