World Environmental and Water Resources Congress 2018
Reconstruction of Historical Watershed-Scale Precipitation over Ishikari River Basin, Japan, by Means of Dynamical Downscaling
Publication: World Environmental and Water Resources Congress 2018: Groundwater, Sustainability, and Hydro-Climate/Climate Change
ABSTRACT
The purpose of this study is to reconstruct atmospheric conditions over Ishikari River Basin (IRB) in Japan during a historical period. Although observation data of near-surface atmospheric variables including precipitation are available for at least several decades in Japan, they are not sufficient to analyze causes of precipitation over IRB. Therefore, in this study, atmospheric conditions over IRB were reconstructed by means of dynamical downscaling with a regional climate model. As a regional climate model, weather and research forecast (WRF) model was employed. ERA-interim reanalysis data were used for initial and boundary conditions of WRF. As the first step of the reconstruction, the model options of WRF were configured by try-and-error. After the configuration, atmospheric conditions over the IRB were reconstructed during 1980–2011. Then, basin-average precipitation over IRB between the reconstructed results and the corresponding observations for the whole period were compared for the validation. This presentation shows the configuration and validation results as the preliminary results.
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Information & Authors
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Published In
World Environmental and Water Resources Congress 2018: Groundwater, Sustainability, and Hydro-Climate/Climate Change
Pages: 240 - 245
Editor: Sri Kamojjala, Las Vegas Valley Water District
ISBN (Online): 978-0-7844-8141-7
Copyright
© 2018 American Society of Civil Engineers.
History
Published online: May 31, 2018
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