Flexural-gravity waves propagating under continuous sea ice can potentially travel considerable distances with negligible reduction of their amplitude, particularly waves that have longer periods such as those in the IG (infragravity) band. This paper investigates resonance from that perspective, explicitly identifying where it might be influencing the formative composition and subsequent evolution of the flexural-gravity wave spectrum by moving energy to longer periods. Several possible manifestations of resonance are appraised, where the term is being applied loosely; some obvious and some less so. For example, the heaving, rolling and flexing of ice floes using NAVMI (nondimensionalized added virtual mass incremental) factors; the natural frequencies of finite sheets of fast ice constrained along some of their boundaries; the initiation and maintenance of trapped edge modes due to reflection at the shore followed by partial total internal reflection as the reflected waves venture out into deeper water again, with the attendant exiting leaky waves that are liberated as part of that process—each shaped by topographical subtleties of local terrain; and a proposition that ice sheets select a preferred frequency at which the wave moves at the same speed in ice as it does in open sea. A data set of observations from the Sea of Okhotsk that includes a broad span of IG waves is employed, as it is these flexural-gravity waves that have the greatest tenacity to propagate over vast distances. Because IG wave energy within the period range 15–70 s is a recurring feature of the measurements collected whilst the sea is ice-covered, this band is a primary focus of the paper. A conceptual model based upon the van der Pol oscillator is also briefly mentioned, to illustrate qualitatively how synchronization could act as a catalyst to some of the resonances that occur.

在连续海冰下传​​播的弯曲重力波可能会传播相当远的距离，而幅度却可以忽略不计，尤其是周期较长的波，例如IG（红外重力）波段的弯曲重力波。本文从该角度研究了共振，从而明确确定了共振可能通过将能量移动至更长的时间段而影响了挠曲波谱的形成成分和随后的演化。本文对共振的几种可能表现进行了评估，其中术语的使用较为宽松。有些显而易见，有些则不太明显。例如，利用NAVMI（无量纲的增加的虚拟质量增量）因子来浮冰，浮冰和弯曲。有限的快速冰片的自然频率沿其某些边界受到约束；由于在岸反射而引起的陷波边缘模式的发起和维持，然后是部分全内反射，因为反射波再次冒险进入更深的水中，随之而来的是泄漏的泄漏波在此过程中被释放，每个泄漏波都是由地形形成的当地地形的微妙之处；并提出了一个建议，即冰盖选择一个优选的频率，使波浪在冰中的运动速度与在公海中的速度相同。使用了鄂霍次克海的观测数据集，其中包括大范围的IG波，因为这些弯曲重力波具有最大的韧性，可以在远距离传播。因为在15-70 s的时间范围内的IG波能量是海洋被冰覆盖时收集的测量的重复特征，所以该波段是本文的主要重点。