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Weiming Sha and Guixing Chen Tohoku University, Japan

1st MAHASRI/AMY WS Yokohama/Tokyo, 2007.1.8-10. Study on Monsoon Onset in South China (Huanan area) with a High-resolution Regional Weather Forecast Model System. Weiming Sha and Guixing Chen Tohoku University, Japan. month pentad. A ug Jul Jun May Apr.

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Weiming Sha and Guixing Chen Tohoku University, Japan

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  1. 1st MAHASRI/AMY WS Yokohama/Tokyo, 2007.1.8-10 Study on Monsoon Onset in South China (Huanan area) with a High-resolution Regional Weather Forecast Model System Weiming Sha and Guixing Chen Tohoku University,Japan

  2. monthpentad Aug Jul Jun May Apr (a) subtropical monsoon onset; (b) after tropical monsoon onset (Chen et al, Cli. Envi. Res., 2000) Beginning dateof rainy season

  3. Heavy flood over South China in June 2005 AWS accumulative precipitation(mm) during 17~26 Jun, 2005

  4. Diurnal variation of the rainfall in coastal region(mm/hr.)

  5. Target/Task Monsoon onset events in South China (Huanan area) Modeling, Understanding & Prediction

  6. We are building up and testing A high-resolution regional weather forecast model system Its name is ・・・ DS3 = Down Scaling Simulation System DS3:a ‘small’ JMA JMA DS3 Model/Resolution Global model （dx=40km） NHM model (dx=15km→4km→1km) Regional model （dx=20km）　　Coupledwith Meso model （dx=5km）CFD・LES model (dx～100m）

  7. Next … *Modeling and validation of the monsoon onset events, diurnal variation of the rainfall in Huanan area, South China (on going,,,) *Understanding its mechanism and prediction

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