Abstract—

Based on average monthly data of the ORAS4 ocean reanalysis, the spatial distribution and values of anomalies of the ocean surface temperature and the velocity of surface currents occurring in the North Atlantic at the meridional displacements of the north wall of the Gulf Stream in January–February are determined. Gulf Stream North Wall Index data are used as data on Gulf Stream movements. The spatial distributions of anomalies corresponding to the northern and southern positions of the North Wall are based on averaging the fields of ocean surface temperature and the velocity of currents corresponding to each phase of the Gulf Stream North Wall index. It has been revealed that for meridional displacements of the North Wall of the Gulf Stream, statistically significant anomalies of the modulus of current velocity (0.03 m/s) and ocean surface temperature (1°C) are not only in the area of the Wall, but also along the entire northern boundary of the Gulf Stream. Here the value of the correlation coefficient of velocity time series with the Gulf Stream North Wall index is 0.56. As for temperature, the same coefficient is 0.50. Significant temperature anomalies (0.3°C) are found off the coast of the Iberian Peninsula and in the central part of the subtropical gyre. The values of the correlation coefficients of time series of the surface temperature and the index of the Gulf Stream in these areas are 0.48 and 0.53 respectively.

中文翻译：

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伴随着墨西哥湾北壁位移的冬季洋流速度和海面温度异常

摘要—

根据ORAS的平均每月数据4进行了海洋再分析，确定了1月至2月海湾流北壁子午线位移在北大西洋发生的海洋表面温度的空间分布和值以及表面流的速度。湾流北墙索引数据用作湾流运动数据。与北壁北部和南部位置相对应的异常空间分布是基于平均海洋表面温度场和与墨西哥湾流北壁指数各相对应的洋流速度得出的。已经发现，对于墨西哥湾流北壁的子午线位移，在统计上显着的电流速度模量异常（0。03 m / s）和海洋表面温度（1°C）不仅在隔离墙区域，而且在墨西哥湾流的整个北部边界。在此，速度时间序列与墨西哥湾北壁指数的相关系数值为0.56。对于温度，相同系数为0.50。在伊比利亚半岛沿海和亚热带回旋的中部发现了明显的温度异常（0.3°C）。在这些地区，地表温度时间序列的相关系数和墨西哥湾流的相关系数分别为0.48和0.53。在伊比利亚半岛沿海和亚热带回旋中部发现了明显的温度异常（0.3°C）。在这些地区，地表温度时间序列的相关系数和墨西哥湾流的相关系数分别为0.48和0.53。在伊比利亚半岛沿海和亚热带回旋的中部发现了明显的温度异常（0.3°C）。在这些区域中，地表温度时间序列的相关系数与墨西哥湾流的指数的相关系数分别为0.48和0.53。