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    • Tree-Ring Bulletin, Volume 52 (1992)
    • Tree-Ring Bulletin, Vol. 52 (1992)
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    Giant Sequoia Ring-Width Chronologies from the Central Sierra Nevada, California

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    Author
    Brown, Peter M.
    Hughes, Malcolm K.
    Baisan, Christopher H.
    Swetnam, Thomas W.
    Caprio, Anthony C.
    Affiliation
    Laboratory of Tree-Ring Research, University of Arizona, Tucson, Arizona
    Issue Date
    1992
    Keywords
    Dendrochronology
    Tree Rings
    Dendroclimatology
    Drought
    Forest Fires
    Forest Trees
    Growth Rings
    Trees
    Woody Plants
    
    Metadata
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    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
    Brown, P.M., Hughes, M.K., Baisan, C.H., Swetnam, T.W., Caprio, A.C. 1992. Giant sequoia ring-width chronologies from the central Sierra Nevada, California. Tree-Ring Bulletin 52:1-14.
    Abstract
    Giant sequoia was one of the first species that A. E. Douglass examined in his pioneering tree- ring research. Recent attention to sequoia, stimulated by fire history studies in sequoia groves, has resulted in new ring-width chronologies based on both recently collected tree-ring material and Douglass' original samples. The development and characteristics of four new multimillennial sequoia chronologies are described here. Three of these chronologies are based on tree-ring series from individual sites: Camp Six (347 B.C. to A.D. 1989), Mountain Home (1094 B.C. to A.D. 1989), and Giant Forest (1235 B.C. to A.D. 1988). The fourth is a composite chronology (1235 B.C. to A.D. 1989) that includes radii from the other three chronologies. Sequoia ring series are generally complacent with occasional narrow rings ("signature years"). Ring-width standardization was complicated by growth releases, many of which are known to have been caused by fires. Such growth releases confuse climatic interpretation of low-frequency signals in the time series. Ring- width series were detrended with cubic splines with 50% frequency response function at 40 years to de-emphasize low-frequency variation and were fit with autoregressive time series models to remove persistence. The resulting prewhitened chronologies contain primarily a high frequency climate signal and are useful for assessing the past occurrence of extreme drought events and for dating applications. The dating chronology originally developed by Douglass is confirmed and the annual nature of giant sequoia tree rings unequivocally verified.
    ISSN
    0041-2198
    Additional Links
    http://www.treeringsociety.org
    Collections
    Tree-Ring Bulletin, Vol. 52 (1992)

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