Increased use of solar photovoltaic electricity requires a better understanding of the impact of large‐scale atmospheric teleconnections on incident short wave (SW) solar radiation. Our focus is on the relationship between winter (December to February) SW radiation in northwest Europe and the dominant Euro‐Atlantic atmospheric teleconnection patterns using multiple multi‐decadal observational and gridded reanalysis datasets, with a focus on the islands of Ireland and Britain. Our study reveals that the previously reported west–east seesaw in the correlation pattern between the winter North Atlantic Oscillation (NAO) index and winter SW radiation across the United Kingdom is complex, involving several zonal changes in the sign of the NAO–SW correlations (multiple seesaws). By comparison with the NAO, the east Atlantic pattern exerts only a weak control on winter SW radiation across the United Kingdom and Ireland, although in the western part of the Iberian Peninsula and adjacent Atlantic Ocean significant positive correlations occur. High values of the Scandinavian pattern index result in higher than average winter SW radiation in much of northern Europe, although it is evident that some regions (e.g. northeast England, east Scotland and the adjacent North Sea area) exhibit the opposite behaviour. Inter‐seasonal variations in the dominant atmospheric flow and moisture transport directions, steered by large‐scale atmospheric pressure patterns, combined with orographic uplift and rainout effects on the windward side of hills and mountains are interpreted to be the physical drivers of the observed zonal variations and correlation sign reversals between winter SW anomalies and the NAO index.

中文翻译：

---

西北欧欧洲大西洋大气遥相关与冬季太阳短波辐射之间的区域相关梯度研究

越来越多地使用太阳能光伏发电，需要更好地了解大规模大气遥相关对入射短波（SW）太阳辐射的影响。我们的重点是使用多个年代际观测和网格化再分析数据集，重点关注欧洲西北部冬季（12月至2月）西南海域辐射与占主导地位的欧洲-大西洋大气遥相关型之间的关系，重点是爱尔兰和英国。我们的研究表明，先前报道的冬季北大西洋涛动指数（NAO）指数与整个英国冬季西南辐射之间的相关模式中的东西向跷跷板是复杂的，在NAO-SW相关性的征兆上涉及几个区域性变化（多个跷跷板）。与NAO相比，尽管在伊比利亚半岛的西部和邻近的大西洋之间，东大西洋的格局对联合王国和爱尔兰的冬季西南辐射的控制作用很弱，但仍存在明显的正相关关系。斯堪的纳维亚模式指数的高值导致北欧大部分地区冬季平均西南辐射高于平均水平，尽管显然某些地区（例如英格兰东北部，苏格兰东部和邻近的北海地区）表现出相反的行为。主要大气流量和水分传输方向的季节间变化受大型大气压力模式的控制，