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SOLA
Vol. 4 (2008) P 105-108

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http://doi.org/10.2151/sola.2008-027


In order to study changes in the regional climate in the vicinity of Japan during the summer rainy season due to global warming, preliminary experiments by a semi-cloud resolving non-hydrostatic model with a horizontal resolution of 5 km (NHM-5km) are conducted from June to October between 2002 and 2006 using 20-km horizontal grid operational regional analysis data of Japan Meteorological Agency (JMA) as the initial and boundary conditions.
The total precipitation amount and appearance frequency for daily precipitation amount simulated by the NHM-5km show notable agreement with those of the surface observation data of Automated Meteorological Data Acquisition System (AMeDAS) of JMA. The temporal and spatial characteristics of maximum daily precipitation amounts (MDPs) from June to October also agree well with the observational results. The regional largest values among MDPs (R-MDPs) for 6 regions of the Japanese Islands are also estimated for the simulation results of the nearest grid points for each AMeDAS station and the AMeDAS observations. Those comparisons conclude the high performance of the NHM-5km for the reproducibility of MDPs and R-MDPs, which are highly related to extreme events.

Copyright © 2008 by the Meteorological Society of Japan

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