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Storm Surge Forecasting Model in Ocean University of Qingdao

The Second OMISAR Workshop on Ocean Models October 1999, Beijing. Storm Surge Forecasting Model in Ocean University of Qingdao. Wensheng Jiang, Shizuo Feng, Wenxin Sun, Jingyong Wang Institute of Physical Oceanography, Ocean University of Qingdao 266003, Qingdao, P. R. China.

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Storm Surge Forecasting Model in Ocean University of Qingdao

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  1. The Second OMISAR Workshop on Ocean Models October 1999, Beijing Storm Surge Forecasting Model in Ocean University of Qingdao Wensheng Jiang, Shizuo Feng, Wenxin Sun, Jingyong Wang Institute of Physical Oceanography, Ocean University of Qingdao 266003, Qingdao, P. R. China

  2. 1. Introduction 2. Brief review of the storm surge study in OUQD 2.1 Pioneering period (1971--1976) * Establish storm surge research group * Round-the-Bohai-Sea survey and data collection * Empirical methods, the ultra-shallow sea storm surge theory 2.2 Developing period (1977--1985) Fully participate in the following research activities * Establish several organizations of storm surges research * Dynamical mechanism and numerical simulation * The first monograph on storm surge 2.3 Harvesting period (1986-- ) * The first generation of numerical forecasting model * The second generation of numerical forecasting model * The application in marine engineering. 3. Typhoon surge model and its application 4. Cylindrical coordinates moving boundary model 5. Conclusions

  3. 1. Introduction Storm surge is a serious natural disaster coming from the sea. The storm surge is usually caused by sub-tropical or tropical storm. In China Bohai Sea there is a special kind of storm surge--wind surge which is caused by cold front and strong wind.

  4. 3. Typhoon surge model and its application 3.1 The description of the model Two sets of grids are used: fine one and the coarse one The hydrodynamic equation The boundary conditions Fixed boundary: Vn=0 Open boundary: 1 Coarse grid: 2 Fine grid:Dirichlet boundary condition

  5. The meteorological forcing 3.2 The numerical scheme

  6. Typhoon 7303 Typhoon 5612 Typhoon 7613

  7. The time series of the water elevation during Typhoon 5612 solid line: observed dashed line: simulated

  8. 4. Cylindrical coordinates moving boundary model 4.1 The idea of determination of the moving boundary The fluid kinematics is strictly followed H(xb ,yb ,t)=0 4.2 The description of the model

  9. 4.3 The numerical scheme 4.4 The model results The comparison between different models The U, V profile at the coast at the extreme flooding time

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