The Eastern Kamchatka Current (EKC) is the western boundary current of the North Pacific subpolar gyre. Southeast of the Kamchatka Peninsula lies a large anticyclonic eddy, the Kamchatka Eddy (KE). This eddy is quasi-stationary. More generally, the oceanic region east of the EKC contains many eddies, several of them large and long lasting. Using surface currents derived from altimetry, particle tracking and a simple two-dimensional numerical model of fluid flow, we investigate the variability of this eddy field, the generation of eddies in the bays of Kamchatka by the EKC and fluxes of water to and from these bays. Firstly, we recover in our analysis of long-lasting eddies, the main eddies of the region. Among strong eddies, the parity bias favors anticyclones. Our numerical simulations give a possible explanation for the process of eddy creation in the bays of the peninsula and show that the northernmost bay produces most anticyclones. Then, we track forward the water particles from these bays and we determine their fate in the open ocean; southeastward and southwestward trajectories are the most frequent. We also track water particles backward from the KE site; they often drift near the Kamchatka coast, but others drift south of this site and remain there, a priori trapped in other eddies. This study confirms the complexity of mesoscale motions and water exchanges in this region.

东部堪察加洋流（EKC）是北太平洋次极回旋的西部边界流。堪察加半岛东南方有一个大型反气旋涡，堪察加涡（KE）。该涡流是准平稳的。一般来说，EKC以东的海洋区域包含许多涡流，其中一些涡流大而持久。利用来自测高仪的表面电流，粒子跟踪和简单的二维流体流动数值模型，我们研究了该涡旋场的可变性，EKC在堪察加湾中涡旋的产生以及往返于这些涡旋的水通量。海湾。首先，我们在分析该地区的主要漩涡即长涡旋中得到了恢复。在强涡流中，奇偶校验偏向于反旋风。我们的数值模拟为半岛海湾中涡流的产生过程提供了可能的解释，并表明最北端的海湾产生了大多数的反气旋。然后，我们追踪这些海湾中的水颗粒，并确定它们在公海中的命运。东南和西南轨迹是最常见的。我们还从KE站点向后追踪水颗粒；他们经常漂流在堪察加海岸附近，但其他人则漂流到该地点的南部并留在那里，这是先验地被其他涡流所困。这项研究证实了该地区中尺度运动和水交换的复杂性。东南和西南轨迹是最常见的。我们还从KE站点向后追踪水颗粒；他们经常漂流在堪察加海岸附近，但其他人则漂流到该地点的南部并留在那里，这是先验地被其他涡流所困。这项研究证实了该地区中尺度运动和水交换的复杂性。东南和西南轨迹是最常见的。我们还从KE站点向后追踪水颗粒；他们经常漂流在堪察加海岸附近，但其他人则漂流到该地点的南部并留在那里，这是先验地被其他涡流所困。这项研究证实了该地区中尺度运动和水交换的复杂性。