The structure and the temporal variability of modelled velocity fields at different depths are studied for the years 2002–2004 in the Northwestern Iberian Margin. The currents are simulated with the Regional Ocean Modeling System in a high resolution that is compatible with the input data from the HYbrid Coordinate Ocean Model reanalysis and the atmospheric forcing from the Climate Forecast System Reanalysis, as well as with the tidal forcing from the TPXO Global Tide Solution. After an initial validation of the numerical model results, the velocity field is mapped to identify the region's main flow characteristics and its seasonal and interannual variability, in order to find areas that have strong currents, which could be of interest for exploring tidal stream energy. There are three main regions within the numerical domain, at different levels, where velocity values reach higher values than their surroundings: (i) located at the surface flowing south around 9.5°W, related to the summer Upwelling Jet; (ii) located further offshore near the Galician Bank, flowing north at deeper water levels which is visible during most part of the year and; (iii) within Ría de Arousa, also visible all year round.

研究了西北伊比利亚边缘2002-2004年不同深度的速度场模型的结构和时间变化。使用高分辨率的区域海洋建模系统对潮流进行仿真，该系统与混合坐标海洋模型再分析的输入数据和气候预测系统再分析的大气强迫以及TPXO Global的潮汐强迫兼容潮汐解决方案。在对数值模型结果进行初步验证之后，将速度场映射以识别该地区的主要流量特征及其季节和年际变化，以便找到具有强流的区域，这对于探索潮汐流能量可能是有意义的。数值域内有三个主要区域，在不同的水平上，速度值达到比周围更高的值：（i）位于约9.5°W向南流动的地表，与夏季上升气流有关；（ii）位于加利西亚银行附近的更远的海上，在更深的水位向北流动，这在一年的大部分时间都可见；以及 （iii）在Ríade Arousa内，全年都可见。