本研究旨在利用現地漂流浮球觀測結合衛星遙測資料，詳細解析西北太平洋渦漩–黑潮交互作用過程中的流場與動能變化。研究資料包括2023年6月於臺灣東部海域佈放自主研發之DrifterTek GPS漂流浮球，以及同期布放的Microstar GPS與SAFE漂流浮球所提供的拉格朗日流場觀測，輔以衛星高度計推算之地轉流場資料（ADT絕對動力地形與衍生流速）和ERA5再分析10公尺風場資料。分析方法上，首先根據浮球軌跡特徵將其移動歷程劃分為三個階段，逐一檢視各階段主要的驅動機制，包括地轉流、風應力及潮汐效應對浮球移動軌跡的影響。同時，採用AVISO提供的中尺度渦漩追蹤產品（META 3.2版本）計算渦漩的有效半徑和渦漩動能時序變化，並利用Okubo-Weiss參數與相對渦度場偵測渦漩邊界，以描述反氣旋渦漩（Anticyclonic Eddy，AE）從生成、發展到消散的完整生命史。研究結果顯示：浮球布放初期，AE維持完整且強度充沛，浮球軌跡主要沿AE東南緣向南移動，此時風場和地轉流向相反，但風場對浮球軌跡之影響甚微；當AE西移至黑潮區域時，AE西側環流與黑潮流向相同，使黑潮區域的局部流速提高，導致黑潮動能在浮球布放後3–5天有明顯增強。然而，在AE東側環流中移動的浮球速度減緩，推斷此時AE之地轉流減弱，浮球的移動方向受風場影響轉為東向，並產生近半日潮週期的繞圈運動。總體而言，本研究整合拉格朗日觀測與衛星高度計推算之地轉流場資料，剖析渦漩–黑潮交互作用下地轉流場與能量的變化，所得結論可為區域海洋動力過程的理解與預測提供科學資訊。

This study uses GPS drifters and satellite remote sensing data to analyze the flow field and kinetic energy changes during the eddy-Kuroshio interaction in the Northwest Pacific Ocean (NWP). The results show that, at the beginning of the drifter deployment, the anti-cyclonic eddy (AE) remained strong, and the drifter track mainly moved southward along the southeastern edge of the AE. The wind field and the geostrophic flow were in opposite directions, but the effect of the wind field on the drifter track was very small; when the AE moved westward to the Kuroshio region, the circulation on the western side of the AE was in the same direction of the Kuroshio, which led to an increase of the local flow velocity of Kuroshio, and resulted in a significant enhancement of the Kuroshio kinetic energy in the first three to five days after the drifter was deployed. A significant increase in the kinetic energy of the Kuroshio current was found in the 3rd-5th days after the deployment of the float. However, the speed of the drifters on the east side of the AE was slowed down (the circulation in the AE were weakened), and the direction of the drifters was changed to an easterly direction due to the influence of the wind field.

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