The present study assesses the thermal variability of the regional ocean around Madeira Island, in intraseasonal and interdecadal time scales, using a 35-year (1983–2017), 3-km horizontal resolution ocean simulation forced by a co-located atmospheric simulation, with SODA and ERA5 boundary and initial conditions, respectively. Atmosphere–ocean interactions in this region are found to be driven by the variability of two quasi-permanent tip-jets, located at the island west and east tips, especially during the summer months. The ocean response is found to be larger in the regions of higher jets speed variability, but its thermal response is highly asymmetrical. On the interdecadal time scale, a significant intensification of both jets during the analyzed period is more prominent in the east tip, but the thermal signature is mostly associated with a much reduced sea surface temperature trend near the west tip.

本研究使用在同一地点进行的大气模拟强迫进行的35年（1983-2017），3公里水平分辨率海洋模拟，评估了马德拉岛周围区域海洋在季节内和年代际时间尺度上的热变异性。 SODA和ERA5分别为边界条件和初始条件。发现该区域的大气-海洋相互作用是由位于岛的西端和东端的两个​​准永久性喷口的变化所驱动的，特别是在夏季月份。发现在喷射速度变化较大的区域中，海洋响应较大，但其热响应高度不对称。在年代际时间尺度上，在分析期间，两种射流的强烈增强在东端更为明显，