International Tree-Ring Data Bank

The International Tree-Ring Data Bank (ITRDB) is a data repository for tree ring measurements that has been maintained since 1990 by the United States' National Oceanic and Atmospheric Administration 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, with a grant from the US National Science Foundation, following the First International Workshop on Dendrochronology 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.

References

"National Centers for Environmental Information -- Tree Ring". NOAA. Retrieved 11 April 2022.
"Cash shortage threatens tree-ring lab". New Scientist. 89 (1241): 462. February 1981.
Speer, James H. (2010). Fundamentals of Tree-ring Research. University of Arizona Press. p. 41. ISBN 978-0-8165-2684-0.
Fritts, H.C. (1976). "The Statistics of Ring-Width and Climatic Data". Tree Rings and Climate. pp. 246–311. doi:10.1016/B978-0-12-268450-0.50011-2. ISBN 978-0-12-268450-0. OCLC 645882099.
"Old Wood in a New Light: An Online Dendrochronological Database". International Journal of Wood Culture. 3 (2023): 442–463. 2023-05-16. doi:10.1163/27723194-bja10009. ISSN 2772-3186.
Hughes, Malcolm (23 February 1978). "European tree rings and climate". New Scientist. 77 (1091): 500–502.

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