A Primer on the Vertical Lagrangian‐Remap Method in Ocean Models Based on Finite Volume Generalized Vertical Coordinates

A Primer on the Vertical Lagrangian‐Remap Method in Ocean Models Based on Finite Volume Generalized Vertical Coordinates
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基于有限体积广义垂直坐标的海洋模型垂直拉格朗日重映射方法入门

DOI:
10.1029/2019ms001954
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发表时间:
2020
影响因子:
6.8
通讯作者:
R. Hallberg
R. Hallberg
中科院分区:
地球科学2区
文献类型:
--
作者:
S. Griffies;A. Adcroft;R. Hallberg

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本文提供了海洋模型的数学、物理和数值基础的入门知识,这些模型使用有限体积广义垂直坐标方程制定,并使用垂直拉格朗日重映射方法来演化海洋状态。我们通过强公式(偏微分方程)和弱公式(有限体积积分方程)来考虑控制海洋方程的数学结构,从而能够理解其物理内容并提供物理数学框架来开发数值算法。在拉格朗日重映射方法和使用有限体积广义垂直预算编写的海洋方程之间建立了联系。提供思想实验来举例说明垂直拉格朗日重映射方法的机制,并与用于海洋模型算法的其他方法进行比较。
This paper provides a primer on the mathematical, physical, and numerical foundations of ocean models that are formulated using finite volume generalized vertical coordinate equations and that use the vertical Lagrangian‐remap method to evolve the ocean state. We consider the mathematical structure of the governing ocean equations in both their strong formulation (partial differential equations) and weak formulation (finite volume integral equations), thus enabling an understanding of their physical content and providing a physical‐mathematical framework to develop numerical algorithms. A connection is made between the Lagrangian‐remap method and the ocean equations as written using finite volume generalized vertical budgets. Thought experiments are offered to exemplify the mechanics of the vertical Lagrangian‐remap method and to compare with other methods used for ocean model algorithms.
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