The Kuroshio in different paths is considered to have different impacts on the generation, propagation and energetics of internal tides (ITs) originated from the Luzon Strait (LS). However, its influence on the incoherence of ITs remains unknown. Based on a regional model simultaneously simulating ITs and background circulations, this study examines the incoherence of the M₂ and K₁ ITs radiated from the LS under the influence of looping and leaping Kuroshio. The looping Kuroshio causes stronger incoherence of the M₂ and K₁ ITs than the leaping Kuroshio. The reason is that the looping Kuroshio causes a larger variation of eigenspeed, which results in stronger incoherence of ITs than the leaping Kuroshio does. For both the looping and leaping Kuroshio, the low-frequency background currents play a more important role than the stratification in changing the eigenspeed. We believe that the results of this study can deepen our understanding of the incoherent nature of ITs near the LS.

不同路径的黑潮被认为对起源于吕宋海峡（LS）的内部潮汐（ITs）的产生、传播和能量有不同的影响。然而，它对 IT 不连贯性的影响仍然未知。基于同时模拟 IT 和背景环流的区域模型，本研究检验了在循环和跳跃黑潮的影响下，从 LS 辐射的 M ₂和 K _{1 IT 的不相干性。}循环的黑潮导致 M ₂和 K _{1的不连贯性更强}它比跳跃的黑潮。原因是循环的黑潮引起了更大的特征速度变化，这导致 IT 的不连贯性比跳跃的黑潮更强。对于循环和跳跃的黑潮来说，低频背景电流在改变本征速度方面的作用比分层更重要。我们相信，这项研究的结果可以加深我们对 LS 附近 IT 不连贯性质的理解。