SOLA
Online ISSN : 1349-6476
ISSN-L : 1349-6476
Dynamical Downscaling of JRA-25 Precipitation over Japan Using the MRI-Regional Climate Model
Kazuyo MurazakiKazuo KuriharaHidetaka Sasaki
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Supplementary material

2010 Volume 6 Pages 141-144

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Abstract

To study regional climate change over Japan, we conducted continuous 26-year dynamical downscaling of JRA-25 (Japanese Re-Analysis 25 years) data using a 20 km-mesh Regional Climate Model (RCM20). The accuracy of the results of downscaling were examined using the observed precipitation data. We found that the downscaled precipitation data reproduce well at both monthly and daily time scales, as well as for extreme events. The data also correlate well with observed inter-annual variability of daily precipitation frequencies for heavy rain events over Japan. These results demonstrate that RCM20's ability for dynamical downscaling is quite strong and that the data are useful for investigating regional climate change.

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© 2010 by the Meteorological Society of Japan
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