Estimating Long-Term Statistics for Annual Precipitation for Six Regions of the United States from Tree-Ring Data

Persistent Link:
http://hdl.handle.net/10150/303446
Title:
Estimating Long-Term Statistics for Annual Precipitation for Six Regions of the United States from Tree-Ring Data
Author:
Fritts, Harold C.; DeWitt, Emily; Gordon, Geoffrey A.; Hunt, John H.; Lofgren, G. Robert
Affiliation:
Laboratory of Tree-Ring Research, University of Arizona; Laboratory of Tree-Ring Research, University of Arizona; Laboratory of Tree-Ring Research, University of Arizona; Laboratory of Tree-Ring Research, University of Arizona; Laboratory of Tree-Ring Research, University of Arizona
Publisher:
Laboratory of Tree-Ring Research, University of Arizona (Tucson, AZ)
Issue Date:
Dec-1979
Description:
Lawrence Livermore Laboratory Contract No. 3216209, December, 1979.
URI:
http://hdl.handle.net/10150/303446
Abstract:
Spatial anomalies of seasonal precipitation for the United States and southwestern Canada have been reconstructed from 1602 through 1961 using dendrochronologicai and multivariate techniques on 65 arid-site tree-ring chronologies from western North America. Seasonal reconstructions are averaged to obtain mean annual precipitation values for six regions of importance to the Nuclear Regulatory Commission (NRC) Nuclear Waste Management Program (NWMP). Statistics calculated from the regionally averaged annual values for 25-year and longer intervals show annual precipitation in the seventeenth through nineteenth centuries to be lower than in the twentieth century for three regions in the American Southwest and higher for one region in the Northwest and two regions in the East. The variability of precipitation generally was higher in the past three centuries than in the present century. Twenty-five-year intervals with noteworthy statistics are identified and important results are summarized and tabulated for use in the hydrologic modeling of the NWMP. Additional research is recommended to incorporate temperature and precipitation into a single hydrologic parameter.
Language:
en_US

Full metadata record

DC FieldValue Language
dc.contributor.authorFritts, Harold C.en_US
dc.contributor.authorDeWitt, Emilyen_US
dc.contributor.authorGordon, Geoffrey A.en_US
dc.contributor.authorHunt, John H.en_US
dc.contributor.authorLofgren, G. Roberten_US
dc.date.accessioned2013-10-15T02:13:41Z-
dc.date.available2013-10-15T02:13:41Z-
dc.date.issued1979-12-
dc.identifier.urihttp://hdl.handle.net/10150/303446-
dc.descriptionLawrence Livermore Laboratory Contract No. 3216209, December, 1979.en_US
dc.description.abstractSpatial anomalies of seasonal precipitation for the United States and southwestern Canada have been reconstructed from 1602 through 1961 using dendrochronologicai and multivariate techniques on 65 arid-site tree-ring chronologies from western North America. Seasonal reconstructions are averaged to obtain mean annual precipitation values for six regions of importance to the Nuclear Regulatory Commission (NRC) Nuclear Waste Management Program (NWMP). Statistics calculated from the regionally averaged annual values for 25-year and longer intervals show annual precipitation in the seventeenth through nineteenth centuries to be lower than in the twentieth century for three regions in the American Southwest and higher for one region in the Northwest and two regions in the East. The variability of precipitation generally was higher in the past three centuries than in the present century. Twenty-five-year intervals with noteworthy statistics are identified and important results are summarized and tabulated for use in the hydrologic modeling of the NWMP. Additional research is recommended to incorporate temperature and precipitation into a single hydrologic parameter.en_US
dc.language.isoen_USen_US
dc.publisherLaboratory of Tree-Ring Research, University of Arizona (Tucson, AZ)en_US
dc.rightsCopyright © Arizona Board of Regents. The University of Arizona.en_US
dc.sourceLaboratory of Tree-Ring Research Archives. The University of Arizona.en_US
dc.titleEstimating Long-Term Statistics for Annual Precipitation for Six Regions of the United States from Tree-Ring Dataen_US
dc.contributor.departmentLaboratory of Tree-Ring Research, University of Arizonaen_US
dc.contributor.departmentLaboratory of Tree-Ring Research, University of Arizonaen_US
dc.contributor.departmentLaboratory of Tree-Ring Research, University of Arizonaen_US
dc.contributor.departmentLaboratory of Tree-Ring Research, University of Arizonaen_US
dc.contributor.departmentLaboratory of Tree-Ring Research, University of Arizonaen_US
dc.description.collectioninformationThis item is part of the Natural History Reports collection. It was digitized from a physical copy provided by the Laboratory of Tree-Ring Research at The University of Arizona. For more information about items in this collection, please contact the Lab's Curator, (520) 621-1608 or see http://ltrr.arizona.edu/collection.en_US
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