Spatial deterministic wave forecasting for nonlinear sea-states
Spatial deterministic wave forecasting for nonlinear sea-states
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DOI：
10.1063/5.0068866
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发表时间：
2021-10-01
影响因子：
4.6
通讯作者：
Stuhlmeier, R.
中科院分区：
文献类型：
--
作者：
Galvagno, M.;Eeltink, D.;Stuhlmeier, R.
我们推导出一个简单的代数形式的非线性波数校正的单向表面重力波在深水中，基于时间测量的水面和空间Zakharov方程。这使我们能够制定一个改进的线性确定性波预测，没有额外的计算成本。我们的新配方是用来预测合成生成的，以及实验测量的海洋和线性理论显示出显着的改善。
We derive a simple algebraic form of the nonlinear wavenumber correction of unidirectional surface gravity waves in deep water, based on temporal measurements of the water surface and the spatial Zakharov equation. This allows us to formulate an improvement over linear deterministic wave forecasting with no additional computational cost. Our new formulation is used to forecast both synthetically generated as well as experimentally measured seas and shows marked improvements over the linear theory.