The aim of this work is a comprehensive study of the 16-year periodicity of winter surface temperature in the Antarctic Peninsula (AP) region, described earlier, and its possible source based on weather station records over the 1952–2019 period making use of the Scientific Committee on Antarctic Research (SCAR) Reference Antarctic Data for Environmental Research (READER) database, as well as Fourier and wavelet analysis methods. It is shown that interdecadal oscillation with a period of about 16 years dominates in the northern AP (Esperanza and Orcadas), which is consistent with previous results. The 16-year periodicity is found to closely correlate with the sea level pressure anomaly in the southwestern Atlantic associated with the zonal wave-3 and the Southern Annular Mode patterns. The correlation maximum in the southwestern Atlantic, having the characteristic features of the anticyclonic circulation, affects the surface temperature in the northern AP through the related structure of the zonal and meridional wind anomalies. This effect is weaker to the south, where the Vernadsky station data do not show a regular interdecadal periodicity. Due to the correlated variability in the wave-3 ridges, the pronounced 16-year periods exist also in the surface temperature of southern Australia–New Zealand region, as well as in the zonal mean sea level pressure at 30°–50° S. The sea surface temperatures are much less involved in the 16-year oscillation suggesting that atmospheric rather than oceanic processes appear to be more important for its occurrence.

这项工作的目的是全面研究前面描述的南极半岛 (AP) 地区冬季地表温度的 16 年周期，及其可能的来源基于 1952-2019 年期间的气象站记录，利用南极研究科学委员会 (SCAR) 环境研究参考南极数据 (READER) 数据库，以及傅立叶和小波分析方法。结果表明，AP 北部（Esperanza 和 Orcadas）以大约 16 年的年代际振荡为主，这与之前的结果一致。发现 16 年的周期性与大西洋西南部与纬向波 3 和南部环形模式模式相关的海平面压力异常密切相关。西南大西洋的相关性最大值，具有反气旋环流特征的气旋通过纬向风异常和经向风异常的相关结构影响亚太北部地表温度。这种影响在南部较弱，那里的 Vernadsky 站数据没有显示出规律的年代际周期性。由于第 3 波海脊的相关变异性，澳大利亚-新西兰南部地区的地表温度以及 30°-50° S 的纬向平均海平面压力也存在明显的 16 年周期。海面温度很少参与 16 年的振荡，这表明大气过程而不是海洋过程似乎对其发生更重要。通过纬向风和经向风异常的相关结构影响亚太北部的地表温度。这种影响在南部较弱，那里的 Vernadsky 站数据没有显示出规律的年代际周期性。由于第 3 波脊的相关变异性，澳大利亚-新西兰南部地区的地表温度以及 30°-50° S 的纬向平均海平面压力也存在明显的 16 年周期。海面温度很少参与 16 年的振荡，这表明大气过程而不是海洋过程似乎对其发生更重要。通过纬向风和经向风异常的相关结构影响亚太北部的地表温度。这种影响在南部较弱，那里的 Vernadsky 站数据没有显示出规律的年代际周期性。由于第 3 波脊的相关变异性，澳大利亚-新西兰南部地区的地表温度以及 30°-50° S 的纬向平均海平面压力也存在明显的 16 年周期。海面温度很少参与 16 年的振荡，这表明大气过程而不是海洋过程似乎对其发生更重要。