Climate Change Analysis on Extreme Precipitation over Three Watersheds in Northern California Based on 137-Year Long-Term Dynamical Downscaling

被引：0

作者：

Ishida, K. ^{[1
]}

Kavvas, M. L. ^{[1
]}

Ceyhan, S. ^{[1
]}

Ohara, N. ^{[2
]}

Chen, Z. Q. ^{[3
]}

机构：

[1] Univ Calif Davis, Dept Civil & Environm Engn, Hydrol Res Lab, Davis, CA 95616 USA

[2] Univ Wyoming, Dept Civil & Architectural Engn, Laramie, WY 82071 USA

[3] Calif Dept Water Resources, Bay Delta Off, Washington, DC USA

来源：

WORLD ENVIRONMENTAL AND WATER RESOURCES CONGRESS 2015: FLOODS, DROUGHTS, AND ECOSYSTEMS | 2015年

关键词：

D O I：

暂无

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Long-term historical precipitation over Northern California was reconstructed for 137 water years from October, 1871 through September, 2008 by dynamical downscaling based on NOAA Twentieth Century Reanalysis version 2 (20CRv2). The annual maximum values of 6-, 12-, 24-, 48-, 72-, and 96-hour basin-average precipitation were obtained from the reconstructed results for three watersheds in Northern California; American River watershed, Yuba River watershed, and Upper Feather River watershed. The reconstructed results for 137 water years are long enough to conduct a moving window analysis. Then, the moving average of annual maximum basin-average precipitation for each duration is calculated based on a 50-year moving window to analyze the trend of annual maximum values of basin-average precipitation. The analysis shows a clear upward trend for the 50-year moving average over all the three watersheds.

引用

页码：983 / 988

页数：6

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