Research Topics
Scientific Interests (as of Jan 2009)
Stable water isotopes circulation
- Numerical modeling of global and regional isotope circulation.
- Minutes to interannual variations of stable water isotopes ratio in precipitation and vapor, and their quantitative interpretation as proxies.
- Estimation and analysis of precipitation source regions
- Relationship between isotopes and climate, and mechanism of appearance of the past climates’ isotopic proxies
- In-situ and remote-sensing observation.
Dynamical downscaling
- Development and improvement of AGCM and RCM
- Methodology development of the dynamical downscaling.
- Past and future changes in meso-scale climate and extremes.
- Application studies on current and future water and energy issues.
Data assimilation
- "Isotope Reanalysis".
- Ensemble Kalman filtering.
- Data assimilation of vapor isotopes observed by the satellite and ground-based spectroscopy sensors.
Terrestrial hydrologic cycles and impact assessment
- Land surface modeling, a macro scale rain-runoff mechanism in particular.
- Development of a river discharge simulation model with anthropogenic activity.
- Prediction of river discharge and other terrestrial hydrologic variables for prevention of hazard and early warning.
- Risk analysis of water-related hazards in the global warming scenarios.
- A case study of a water-related hazard
Biogeochemical cycle
- Modeling and data assimilation for global CO2 cycle.
- Estimation of pollution source with biogeochemical tracers
- Modeling of atmospheric transport with chemical process.