An analysis is presented of the submesoscale tidally-induced anticyclonic eddies formed at the eastern mouth of the Strait of Gibraltar and their role in explaining mesoscale features of the Atlantic Jet – Western Alboran Gyre (AJ-WAG) system. These eddies have been identified for the first time using an observational approach based on the analysis of High Frequency Radar (HFR) derived surface currents on the eastern mouth of the Strait which has been complemented with the analysis of Sea Surface Temperature (SST) satellite images. It is found that the major source of positive vorticity to the AJ is provided by its interaction with these anticyclonic eddies which in turn help maintain the water feeding of the upper branch of the WAG. This new role in maintaining the WAG is added to others previously recognized by other authors based on the supply of negative vorticity that these eddies provide to the whole WAG. In addition, these tidally-induced eddies may contribute to the destabilization of the AJ-WAG system when strong and persistent easterly winds coincide with periods of high tidal current amplitude. In these cases, meteorological forcing produces a weak and southward deflected AJ almost disconnected from a displaced eastward WAG. The WAG in turn is being flattened by an overdeveloped North Western Cyclonic Gyre (NWCG) that may be favored by the action of the mentioned eddies.

分析了在直布罗陀海峡东口形成的亚中尺度潮汐引起的反气旋涡流及其在解释大西洋急流－西阿尔博兰涡流（AJ-WAG）系统的中尺度特征中的作用。这些涡流是首次使用观测方法识别的，该方法是基于对海峡东口高频雷达（HFR）导出的表面电流的分析，并辅以对海面温度（SST）卫星图像的分析。已经发现，AJ与这些反气旋涡旋的相互作用提供了AJ正涡度的主要来源，这反过来又有助于维持WAG上部分支的供水。基于这些涡流为整个WAG提供的负涡度，这种在维持WAG中的新角色被其他作者先前认可的其他角色所添加。另外，当强风和持续的东风与高潮汐电流幅值周期相吻合时，这些潮汐涡流可能会导致AJ-WAG系统的不稳定。在这些情况下，气象强迫会产生一个弱的，向南偏转的AJ，几乎与位移的东向WAG断开连接。反过来，WAG被过度发展的西北气旋涡（NWCG）弄平了，上述涡流的作用可能会助长它。当强风和持续的东风与潮汐电流高振幅周期相吻合时，这些潮汐涡流可能会导致AJ-WAG系统的不稳定。在这些情况下，气象强迫会产生一个弱的，向南偏转的AJ，几乎与位移的东向WAG断开连接。反过来，WAG被过度发展的西北气旋涡（NWCG）弄平了，上述涡流的作用可能会助长它。当强风和持续的东风与潮汐电流幅值高的时期重合时，这些潮汐涡流可能会导致AJ-WAG系统的不稳定。在这些情况下，气象强迫会产生一个弱的，向南偏转的AJ，几乎与位移的东向WAG断开连接。反过来，WAG被过度发展的西北气旋涡（NWCG）弄平，上述涡流的作用可能会助长该气旋。