Persistent Link:
http://hdl.handle.net/10150/260420
Title:
The X-Ray Technique as Applied to Dendroclimatology
Author:
Schweingruber, F. H.; Fritts, H. C.; Bräker, O. U.; Drew, L. G.; Schär, E.
Affiliation:
Eidgenössische Anstalt, für das forstliche Versuchswesen, Birmensdorf, Switzerland; Laboratory of Tree-Ring Research, The University of Arizona
Issue Date:
1978
Rights:
Copyright © Tree-Ring Society. All rights reserved.
Collection Information:
This 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.
Publisher:
Tree-Ring Society
Journal:
Tree-Ring Bulletin
Citation:
Schweingruber, F.H., Fritts, H.C., Bräker, O.U., Drew, L.G., Schär, E. 1978. The X-ray technique as applied to dendroclimatology. Tree-Ring Bulletin 38:61-91.
Note:
Measurements of maximum and minimum density as well as earlywood and latewood thickness are measured on Swiss alpine trees using the x-ray densitometry facilities at the Eidgenössische Anstalt für das forstliche Versuchswesen, Birmensdorf, Switzerland. Methods for assuring accurate estimates of absolute density are described. The characteristics of each type of ring measurement are discussed, and their relationships to monthly temperature and precipitation data are analysed by means of Gleichläufigkeit percentages and response function techniques. The temperature during the growing season is directly correlated with the various parameters, especially with maximum density, but temperature at other times during the year and precipitation also have some influence. Four transfer functions were obtained between the treering data and temperature at four meteorological stations from July through September. Maximum density was the single tree-ring characteristic most highly related to climatic data, but a calibration using all four tree-ring variables for the growth year concurrent with climate and for the year following the occurrence of climate gave the most reliable result. In the latter case, 70.6% of the temperature variance was calibrated, and 62.4% of the variance was verified using independent climatic data from the same climatic stations. Excellent climatic reconstructions are obtained using the four tree-ring parameters derived from the densitometric measurements.
Keywords:
Dendrochronology; Tree Rings; Dendroclimatology
ISSN:
0041-2198
Additional Links:
http://www.treeringsociety.org

Full metadata record

DC FieldValue Language
dc.language.isoen_USen_US
dc.titleThe X-Ray Technique as Applied to Dendroclimatologyen_US
dc.contributor.authorSchweingruber, F. H.en_US
dc.contributor.authorFritts, H. C.en_US
dc.contributor.authorBräker, O. U.en_US
dc.contributor.authorDrew, L. G.en_US
dc.contributor.authorSchär, E.en_US
dc.contributor.departmentEidgenössische Anstalt, für das forstliche Versuchswesen, Birmensdorf, Switzerlanden_US
dc.contributor.departmentLaboratory of Tree-Ring Research, The University of Arizonaen_US
dc.date.issued1978-
dc.rightsCopyright © Tree-Ring Society. All rights reserved.en_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
dc.publisherTree-Ring Societyen_US
dc.identifier.journalTree-Ring Bulletinen_US
dc.identifier.citationSchweingruber, F.H., Fritts, H.C., Bräker, O.U., Drew, L.G., Schär, E. 1978. The X-ray technique as applied to dendroclimatology. Tree-Ring Bulletin 38:61-91.en_US
dc.description.noteMeasurements of maximum and minimum density as well as earlywood and latewood thickness are measured on Swiss alpine trees using the x-ray densitometry facilities at the Eidgenössische Anstalt für das forstliche Versuchswesen, Birmensdorf, Switzerland. Methods for assuring accurate estimates of absolute density are described. The characteristics of each type of ring measurement are discussed, and their relationships to monthly temperature and precipitation data are analysed by means of Gleichläufigkeit percentages and response function techniques. The temperature during the growing season is directly correlated with the various parameters, especially with maximum density, but temperature at other times during the year and precipitation also have some influence. Four transfer functions were obtained between the treering data and temperature at four meteorological stations from July through September. Maximum density was the single tree-ring characteristic most highly related to climatic data, but a calibration using all four tree-ring variables for the growth year concurrent with climate and for the year following the occurrence of climate gave the most reliable result. In the latter case, 70.6% of the temperature variance was calibrated, and 62.4% of the variance was verified using independent climatic data from the same climatic stations. Excellent climatic reconstructions are obtained using the four tree-ring parameters derived from the densitometric measurements.en_US
dc.subjectDendrochronologyen_US
dc.subjectTree Ringsen_US
dc.subjectDendroclimatologyen_US
dc.identifier.citationSchweingruber, F.H., Fritts, H.C., Bräker, O.U., Drew, L.G., Schär, E. 1978. The X-ray technique as applied to dendroclimatology. Tree-Ring Bulletin 38:61-91.en_US
dc.identifier.issn0041-2198-
dc.identifier.urihttp://hdl.handle.net/10150/260420-
dc.identifier.journalTree-Ring Bulletinen_US
dc.typeArticleen_US
dc.relation.urlhttp://www.treeringsociety.orgen_US
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