Optimizing open boundary conditions of nonlinear tidal model using adjoint method Ⅰ.The establishment of ad joint model and twin-experiment

Han Guijun; He Bairong; Ma Jirui; Liu Kexiu; Li Dong

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Article Navigation > Haiyang Xuebao > 2000 > 22(6): 27-33

Han Guijun, He Bairong, Ma Jirui, Liu Kexiu, Li Dong. Optimizing open boundary conditions of nonlinear tidal model using adjoint method Ⅰ.The establishment of ad joint model and twin-experiment[J]. Haiyang Xuebao, 2000, 22(6): 27-33.

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Optimizing open boundary conditions of nonlinear tidal model using adjoint method Ⅰ.The establishment of ad joint model and twin-experiment

1.
National Marine Data and Information Service, State Oceanic Administration, Tianjin300171;Institute of Oceanology, Chiness Academy of Sciences, Qingdao 266071
2.
College of Mathematic Science, Nankai University, Tianjin 300071
3.
National Marine Data and Information Service, State Oceanic Administration, Tianjin300171

Received Date: 1999-10-14
Rev Recd Date: 2000-03-20

Abstract

Abstract

In order to improve the prediction of numerical tidal model in continental shelf,the open boundary conditions are optimized by assimilating the observed data into the model in which the adjoint method,based on optimal control theory,is used.The nonlinear shallow water equations are considered in which horizontal kinematicnonlinearities,nonlinear bottom friction and horizontal eddy diffusion are included.The adjoint model is obtained byusing Lagrange multipliers.This study contains two parts: Part Ⅰ (this paper)─the establishment of the adjointmodel and twin-experiment,and part Ⅱ (another paper)─the numerical results which are incorporated the datafrom tide stations with/without TOPEX/POSEIDON altimeter data for optimizing the open boundary conditions ofthe model.
- Adjoint equations,
- numerical tidal model,
- nonlinearities,
- open boundary

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References(13)

References

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