A 440-Year Reconstruction of Heavy Precipitation in California from Blue Oak Tree Rings
A 440-Year Reconstruction of Heavy Precipitation in California from Blue Oak Tree Rings
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DOI:
10.1175/jhm-d-22-0062.1
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发表时间:
2023-03-01
影响因子:
3.8
通讯作者:
Gershunov, Alexander
中科院分区:
文献类型:
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作者:
Howard, Ian M.;Stahle, David W.;Gershunov, Alexander
The variability of water year precipitation and selected blue oak tree-ring chronologies in California are both dominated by heavy precipitation delivered during just a few days each year. These heavy precipitation events can spell the difference between surplus or deficit water supply and elevated flood risk. Some blue oak chronologies are highly correlated with water year precipitation (r = 0.84) but are equally well correlated (r = 0.82) with heavy precipitation totals >= 25.4 mm (1 in., '95th percentile of daily totals, 1949-2004). The blue oak correlation with nonheavy daily totals is much weaker (