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dc.contributor.authorGrissino-Mayer, Henri D.
dc.date.accessioned2012-12-13T00:09:44Z
dc.date.available2012-12-13T00:09:44Z
dc.date.issued1997
dc.identifier.citationGrissino-Mayer, H.D. 1997. Computer assisted, independent observer verification of tree-ring measurements. Tree-Ring Bulletin 54:29-41.en_US
dc.identifier.issn0041-2198
dc.identifier.urihttp://hdl.handle.net/10150/262380
dc.description.abstractThe importance of tree-ring analyses to forestry and other disciplines (e.g., climate and ecology) requires that tree-ring measurements be as accurate as possible. Accuracy of tree-ring measurement, although often emphasized, may not be stressed as much as other areas of the research. Nonetheless, poor quality measurement data compromise the reliability of interpretations. Possible errors include individual ring mismeasurement errors, consecutive ring errors, multiple ring misdating errors, and multiple ring systematic errors. Verification of measurements can be accomplished by an independent observer who remeasures certain segments from randomly selected cores or cross sections and then uses the computer program VERIFY5 to quantitatively and qualitatively compare both sets of measurements. This program features analyses-such as comparative statistics, least squares analysis, and outlier detection-that can isolate specific measurement errors. Such errors can be minimized by: (1) proper training in the hardware and software used; (2) training in certain rudimentary dendrochronological skills; (3) developing a deliberate measuring pace; (4) consistently using VERIFY5 by an independent observer; (5) using a quality control program (such as COFECHA) to further check measurements and crossdating.
dc.language.isoen_USen_US
dc.publisherTree-Ring Societyen_US
dc.relation.urlhttp://www.treeringsociety.orgen_US
dc.rightsCopyright © Tree-Ring Society. All rights reserved.en_US
dc.subjectDendrochronologyen_US
dc.subjectTree Ringsen_US
dc.subjectComputer Softwareen_US
dc.subjectComputer Techniquesen_US
dc.subjectMeasurementen_US
dc.subjectTechniquesen_US
dc.titleComputer Assisted, Independent Observer Verification of Tree-Ring Measurementsen_US
dc.typeArticleen_US
dc.contributor.departmentLaboratory of Tree-Ring Research, The University of Arizona, Tucson, Arizonaen_US
dc.identifier.journalTree-Ring Bulletinen_US
dc.description.collectioninformationThis 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 editor@treeringsociety.org.en_US
refterms.dateFOA2018-06-11T13:46:47Z
html.description.abstractThe importance of tree-ring analyses to forestry and other disciplines (e.g., climate and ecology) requires that tree-ring measurements be as accurate as possible. Accuracy of tree-ring measurement, although often emphasized, may not be stressed as much as other areas of the research. Nonetheless, poor quality measurement data compromise the reliability of interpretations. Possible errors include individual ring mismeasurement errors, consecutive ring errors, multiple ring misdating errors, and multiple ring systematic errors. Verification of measurements can be accomplished by an independent observer who remeasures certain segments from randomly selected cores or cross sections and then uses the computer program VERIFY5 to quantitatively and qualitatively compare both sets of measurements. This program features analyses-such as comparative statistics, least squares analysis, and outlier detection-that can isolate specific measurement errors. Such errors can be minimized by: (1) proper training in the hardware and software used; (2) training in certain rudimentary dendrochronological skills; (3) developing a deliberate measuring pace; (4) consistently using VERIFY5 by an independent observer; (5) using a quality control program (such as COFECHA) to further check measurements and crossdating.


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