International Tree-Ring Data Bank: Difference between revisions

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The '''International Tree-Ring Data Bank''' ('''ITRDB''') is a data repository for [[Tree_ring#Growth_rings|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.<ref>{{cite web|title=National Climatic Data Center -- Tree Ring|url=http://www.ncdc.noaa.gov/paleo/treering.html|publisher=NOAA|accessdate=26 April 2013}}</ref> The ITRDB was initially established by [[Hal Fritts]] through the [[Laboratory of Tree-Ring Research]] at the [[University of Arizona]] through a grant from the US [[National Science Foundation]] after the First International Workshop on Dendrochronology in 1974.<ref>{{cite journal|title=Cash shortage threatens tree-ring lab|journal=New Scientist|year=1981|month=February|pages=462}}</ref><ref>{{cite book|last=Speer|first=James H.|title=Fundamentals of Tree-Ring Research|year=2010|publisher=University of Arizona Press|___location=Tucson|isbn=0816526842|pages=41}}</ref> The ITRDB accepts all tree ring data with sufficient metadata to be uploaded, but was originally founded with a focus on tree ring measurements intended for [[paleoclimatology|climatic studies]].<ref>{{cite book|last=Fitts|first=H.C.|title=Tree Rings and Climate|year=1976|isbn=978-0124142121}}</ref> 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.<ref>{{cite journal|last=Hughes|first=Malcom|title=European tree rings and climate|journal=New Scientist|date=23|year=1978|month=February|volume=77|issue=1091|pages=500–502}}</ref>