The effects of eddies on the subduction and movement of water masses reaching the 137\(^{\circ }\) E section are examined in a nominal 10-km resolution ocean general circulation model using a backward-particle tracking method. Target water masses are the Tropical Water (TW), the Eastern Subtropical Mode Water (ESTMW), the Subtropical Mode Water (STMW), and lighter variety of the Central Mode Water (L-CMW). Each particle is classified as a typical water mass according to its physical properties in the subduction area, and into eddy and non-eddy components based on the Okubo–Weiss parameter. During subduction, each water mass tends to be located in anticyclonic eddies rather than cyclonic eddies. The effects of eddies on the spatial distribution of water mass and the time taken by the water mass to reach the 137\(^{\circ }\) E section differ for each water mass. For the TW, the water mass in the mesoscale eddies tends to be distributed along the eastward Subtropical Countercurrent (STCC), which moves eastward from the 137\(^{\circ }\) E to Hawaii. The eddy component takes lesser time to reach the 137\(^{\circ }\) E section as compared to the non-eddy component. For ESTMW, a similar pattern appears around STCC but its effect is confined to the west of Hawaii. For STMW, subduction and distribution occur predominantly in anticyclonic eddies. A part of L-CMW crosses the Kuroshio Extension when cyclonic eddies are pinched off from the troughs of the Kuroshio Extension, reaching the 137\(^{\circ }\) E section within 2 years.

使用反向粒子追踪方法，在标称的10 km分辨率海洋总环流模型中检查了涡旋对到达137 E （^ {\ circ} \） E段的水团的俯冲和运动的影响。目标水量是热带水（TW），东部亚热带模式水（ESTMW），亚热带模式水（STMW）和较轻的中央模式水（L-CMW）。根据其在俯冲区域内的物理特性，将其分为典型的水团，并根据Okubo-Weiss参数将其分为涡流和非涡流成分。在俯冲过程中，每个水团倾向于位于反气旋涡中，而不是旋风涡中。涡流对水团空间分布和水团到达137所需时间的影响\（^ {\ circ} \）每个水量的E部分都不同。对于TW，中尺度涡流中的水团倾向于沿着东亚热带逆流（STCC）分布，从137 E（E ）向东移动到夏威夷。与非涡流分量相比，涡流分量花费更少的时间到达137 \（^ {\ circ} \） E部分。对于ESTMW，在STCC周围出现了类似的模式，但其影响仅限于夏威夷西部。对于STMW，俯冲和分布主要发生在反气旋涡旋中。L-CMW的一部分穿过黑潮延伸时旋风涡流从黑潮延伸的槽夹断，达到137 \（^ {\ CIRC} \）在2年内E部分。