PCMDI > WCRP CMIP3 Model Output > Diagnostic Subprojects

PI:	Akio Kitoh
Institution:	Meteorological Research Institute, Japan
Abstract:
Baiu-Changma-Meiyu is a rainy period in early summer over East Asia (Japan, Korea and China) and its variability and change is one of major focus in climate change projection in these areas. Until now, there are many studies on changes in seasonal mean climate, but few studies are available on changes on duration of rainy season. Uchiyama and Kitoh (2004) analyzed the MRI-CGCM2 data at 2071-2100 of SRES-A2 scenario and showed a delay in Baiu rain withdrawal and an increased amount of total Baiu rainfall, but little change in onset and intensity. The purpose of the proposed research is to investigate the change of intensity as well as seasonality (onset, withdrawal and duration) of East Asian rainy season and associated circulation changes. The main data to be analyzed is the daily precipitation. Additional data needed are the sea-level pressure, SST and/or 2m temperature and column integrated moisture flux (daily preferable but if not available 5-day or monthly mean will be used instead).
Publications:
Kitoh, A., and T. Uchiyama, 2006: Changes in onset and withdrawal of the East Asian summer rainy season by multi-model global warming experiments. J. Meteor. Soc. Japan, 84. In press. Abstract. Edit. Add Publication