论文标题
边缘冰区波传播的耗散非线性schrödinger模型
A dissipative Nonlinear Schrödinger model for wave propagation in the marginal ice zone
论文作者
论文摘要
海冰削弱了从开海中传播的海浪。在这里，我们用非线性schrödinger方程在边缘冰区中的能量单向随机波的演变建模，其频率依赖性耗散项与当前模型范式和最近的现场观测一致。高频分量的优先耗散导致光谱峰的同时降档，这会导致小于指数能量衰减，但与相应的线性模型相比，速率较低。衰减和降档对比度非线性以及边缘的非线性波统计倾向于较远地进入边缘冰区。
Sea ice attenuates waves propagating from the open ocean. Here we model the evolution of energetic unidirectional random waves in the marginal ice zone with a nonlinear Schrödinger equation, with a frequency dependent dissipative term consistent with current model paradigms and recent field observations. The preferential dissipation of high frequency components results in a concurrent downshift of the spectral peak that leads to a less than exponential energy decay, but at a lower rate compared to a corresponding linear model. Attenuation and downshift contrast nonlinearity, and nonlinear wave statistics at the edge tend to Gaussianity farther into the marginal ice zone.
