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利用岸边潮位资料来估计潮汐模式的开边界条件的问题进行了讨论和一些数值试验研究.所用方法是基于最优控制理论的伴随算子法.利用模拟的“资料”来求最优的模式开边界条件,使模式结果与“资料”在最小二乘的意义下拟合的最好.数值试验考虑了两个理想化的模式区域.模式是IAP浅水方程模式.通过数值试验可对方法的有效性和局限性进行检验.结果表明伴随算子法在许多情况下可很好估计出潮汐模式开边界条件,并较之传统的方法,有潜力提高潮汐模拟和计算的精度.
The use of the shore tide data to estimate the open boundary conditions of the tidal model is discussed and some numerical experiments are carried out.The method used is based on the concomitant operator theory of the optimal control theory.Using the “data” of the simulation to find the optimal model Open boundary conditions, the model results and the “data” in the least squares fit the best. Numerical experiments consider two idealized mode region. Mode is the IAP shallow water equation model. Through numerical tests of the method Validity and limitations of the tidal model.The results show that the concomitant operator method can well estimate the tidal model open boundary conditions in many cases and has the potential to improve the accuracy of tidal simulation and calculation compared with the traditional methods.