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    Long-term Spatial and Temporal Drought Frequency Analysis in Western United States Utilizing Tree Rings

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    Author
    Stockton, Charles W.
    Affiliation
    Laboratory of Tree-Ring Research, University of Arizona
    Issue Date
    1976-07
    
    Metadata
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    Publisher
    Laboratory of Tree-Ring Research, University of Arizona (Tucson, AZ)
    Description
    Final Report Submitted to the National Science Foundation by University of Arizona / Grant - DES 74-24163, January 1, 1975 to June 30, 1976
    URI
    http://hdl.handle.net/10150/302932
    Abstract
    The main purpose of this project has been to increase our understanding of drought history of the western United States through the use of tree rings. Accordingly, we reconstructed the Palmer Drought Severity Index (PDSI) in the western United States back to A.D. 1700 from 40 tree-ring series. In addition, we studied the joint occurrence of drought in the western United States and sea surface temperatures (SST) anomalies in the eastern North Pacific. To derive a long term SST record we reconstructed SST off Baja California from tree-ring records in Mexico and the southwestern United States. From a comparison of the SST reconstruction with the PDSI reconstruction we found that anomalously cold SST in spring and early summer appears to be related to large scale spring and summer drought in western United States.
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    en_US
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    Natural History Reports

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