| 海浪同化预报模型理论基础 |
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| 引用本文： | 杨永增,张杰,潘增弟.海浪同化预报模型理论基础[J].海洋科学进展,2001,19(3):26-38. |
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| 作者姓名： | 杨永增 张杰 潘增弟 |
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| 作者单位： | 1. 国家海洋局第一海洋研究所,中国科学院海洋研究所,
2. 国家海洋局第一海洋研究所, |
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| 摘 要： | 将共轭变分同化方法应用于 LAGFD- WAM海浪数值模式 ,导出了海浪谱能量平衡方程的共轭方程以及风输入、破碎、底摩擦、波波非线性相互作用和波流相互作用的相应共轭源函数 ,建立了海浪同化模型 ,数值计算仍采用特征线嵌入计算格式 ,为合成孔径雷达波谱反演资料和卫星高度计有效波高资料同化奠定理论基础
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| 关 键 词： | 共轭变分方法 资料同化 海浪数值预报 |
Fundamental Theory of Wave Assimilation Prediction Model |
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| Abstract.Fundamental Theory of Wave Assimilation Prediction Model[J].Advances in Marine Science,2001,19(3):26-38. |
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| Authors: | Abstract |
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| Abstract: | The adjoint variational method applied to wave data assimilation in the LAGFD WAM wave model is proposed. Since the SAR imaging mechanism is now well understood, wave directional spectra can be retrieved from the SAR image spectra. An assimilation system based on the wave number energy spectrum balance equation is developed here. The adjoint equation, which is of great importance in the system is derived from the wave number energy spectrum balance equation, and the complicated characteristic inlaid computational scheme applied to the adjoint wave spectrum equation is also discussed for practical numerical simulation. |
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| Keywords: | adjoint variational method data assimilation wave numerical prediction |
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