Chapter
Jul 8, 2013
How Realistic Are the GCM Climate Projections in Simulating the Recent Past over Northern California?
Authors: S. Jang, M. L. Kavvas, N. Ohara, S. Kure, K. Ishida, G. B. Matanga, and K. E. NelsonAuthor Affiliations
Publication: World Environmental and Water Resources Congress 2013: Showcasing the Future
Abstract
In this study, the precipitation was dynamically downscaled from two GCM outputs (CCSM3 and ECHAM5) to a finer grid scale (9 km) at hourly intervals and then was spatially evaluated against observations (PRISM precipitation) over the Northern California region. Six precipitation projections (A1B1, A2, B1, A1FI, Ensemble1, and Ensemble2) were used for this study. In general, the case of Ensemble2 shows the most realistic precipitation simulations against PRISM precipitation based on the comparisons of recent 11-year average precipitation fields. However, it is important to note that the case of A1FI also shows realistic trends in mountainous watersheds. This means that precipitation under the A1FI scenario is also important for future climate change impact studies.
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Published In
World Environmental and Water Resources Congress 2013: Showcasing the Future
Pages: 1164 - 1167
Copyright
© 2013 American Society of Civil Engineers.
History
Published online: Jul 8, 2013
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Authors
Affiliations
S. Jang
Hydrologic Research Laboratory, Dept. of Civil and Environmental Engineering University of California, Davis, CA 95616, USA
M. L. Kavvas
Hydrologic Research Laboratory, Dept. of Civil and Environmental Engineering University of California, Davis, CA 95616, USA
N. Ohara
Civil and Architectural Engineering, University of Wyoming, Laramie, WY 82071, USA
S. Kure
International Research Institute of Disaster Science, Tohoku University, Sendai, Japan
K. Ishida
Hydrologic Research Laboratory, Dept. of Civil and Environmental Engineering University of California, Davis, CA 95616, USA
G. B. Matanga
US Bureau of Reclamation, Sacramento, California, U.S.A.
K. E. Nelson
US Bureau of Reclamation, Sacramento, California, U.S.A.
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