Chronology Stripping as a Tool for Enhancing the Statistical Quality of Tree-Ring Chronologies
AffiliationSchool of Geography and Environmental Science, The University of Auckland, Auckland, New Zealand
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Collection InformationThis item is part of the Tree-Ring Research (formerly Tree-Ring Bulletin) archive. It was digitized from a physical copy provided by the Laboratory of Tree-Ring Research at The University of Arizona. For more information about this peer-reviewed scholarly journal, please email the Editor of Tree-Ring Research at firstname.lastname@example.org.
CitationFowler, A., Boswijk, G. 2003. Chronology stripping as a tool for enhancing the statistical quality of tree-ring chronologies. Tree-Ring Research 59(2):53-62.
AbstractReplication is a key principle in tree-ring research. Dendrochronologists strive to maximise sample size to enhance the "signal" in tree-ring chronologies, often relying on crossdating to provide an effective quality control filter. However, is crossdating alone a sufficient quality test for incorporating a series into a site chronology? We address this question using an objective and automated "chronology stripping" method designed to maximise the chronology's "Expressed Population Signal" (EPS), by iteratively removing series which lower chronology EPS. A 15-site data set of Agathis australis (D. Don) Lindley is used to demonstrate the method. Results suggest that modest benefits may be gained by chronology stripping, but the quality control implicit in crossdating is indeed effective, at least for Agathis australis.