Modelling the global ocean tides: modern insights from FES2004
Modelling the global ocean tides: modern insights from FES2004
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DOI：
10.1007/s10236-006-0086-x
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发表时间：
2006-12-01
期刊：
影响因子：
2.3
通讯作者：
Francis, Olivier
中科院分区：
文献类型：
--
作者：
Lyard, Florent;Lefevre, Fabien;Francis, Olivier
在1990年代期间，开发了大量新的潮汐地图集，主要是为卫星测高应用提供精确的潮汐校正。在这十年中，以C. Le Provost等编制了一系列有限元潮汐解（FES）图集，其中FES 2004是最新发布的，它是根据潮汐流体动力学方程和数据同化计算的。本文的目的是回顾潮汐模拟的艺术状态和在过去十年中取得的进展。第一部分总结了模拟全球潮汐的一般FTG方法。在接下来的章节中，我们将介绍FES 2004潮汐图集，并根据现场和卫星数据验证模型。我们证明，与早期的FES潮汐地图集相比，FES 2004发布的准确性更高，我们建议将其用于潮汐应用。最后一节着重讨论了方程中新增加的耗散项，它的目的是考虑正压能量向内部潮汐能量的转换。当考虑这一项时，得到的水动力潮汐解和能量收支有了很大的改进。
During the 1990s, a large number of new tidal atlases were developed, primarily to provide accurate tidal corrections for satellite altimetry applications. During this decade, the French tidal group (FTG), led by C. Le Provost, produced a series of finite element solutions (FES) tidal atlases, among which FES2004 is the latest release, computed from the tidal hydrodynamic equations and data assimilation. The aim of this paper is to review the state of the art of tidal modelling and the progress achieved during this past decade. The first sections summarise the general FTG approach to modelling the global tides. In the following sections, we introduce the FES2004 tidal atlas and validate the model against in situ and satellite data. We demonstrate the higher accuracy of the FES2004 release compared to earlier FES tidal atlases, and we recommend its use in tidal applications. The final section focuses on the new dissipation term added to the equations, which aims to account for the conversion of barotropic energy into internal tidal energy. There is a huge improvement in the hydrodynamic tidal solution and energy budget obtained when this term is taken into account.