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An intercomparison of simulations of the East-Asian summer climate and its change
| PI: |
Masahide Kimoto |
| Institution: |
University of Tokyo |
| Abstract: |
This subproject intends to intercompare the present-day and climate change simulations of summertime East Asian climate, with focus on Baiu/Meiyu/Changma front and associated rain-producing disturbances and two large-scale circulation components that affect much the maintenance and variability of the Baiu frontal activity: the subtropical northwestern Pacific High and the Okhotsk High. Currently, many GCMs have difficulties in reproducing the observed Baiu-frontal rainband, but its importance on the East Asian climate cannot be overemphasized. Models with increased resolution have started capturing the frontal structure mode realistically, and it is of considerable interest to see how the state-of-the-art AR4 models perform in this regard. The credibility of East Asian summertime climate change projection should be enhanced through this intercomparison.
Required experiments and model outputs:
Experiments:
a. AMIP simulations
b. Present-day control with CGCMs
c. 1% CO2 increase with CGCMs
d. 2xCO2 equilibrium with slab ocean
e. Other runs may be referred to in order to confirm results obtained with the above runs
Outputs:
Monthly mean 2D atmosphere data
1. air_pressure_at_sea_level
2. precipitation_flux
3. air_temperature
4. surface_temperature |
| Publications: |
- Kimoto, M., 2005: Simulated change of the east Asian circulation under global warming scenario.. Geophys. Res. Lett., 32, L16701, doi:10.1029/2005GL023383. Abstract. Edit.
- Tsushima, Y., S. Emori, T. Ogura, M. Kimoto, M. J. Webb, K. D. Williams, M. A. Ringer, B. J. Soden, B. Li, and N. Andronova, 2007: A multi-model analysis of the distribution of mixed-phase clouds in AGCMs, for control and doubled carbon dioxide simulations. Clim. Dyn., doi:10.1007/s00382-006-0127-7. Abstract. Edit.
- Yokohata, T., S. Emori, T. Nozawa, T. Ogura, M. Kawamiya, Y. Tsushima, Ta. Suzuki, S. Yukimoto, A. Abe-Ouchi, H. Hasumi, A. Sumi, and M. Kimoto,, 2008: Comparison of equilibrium and transient responses to CO2 increase in eight state-of-the-art climate models. Tellus, doi: 10.1111/j.1600-0870.2008.00345.x. Abstract. Edit.
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