This study focuses on the strengthening of the maritime influence on the Balkan Peninsula in summer. The study uses mainly statistical methods such as trend analysis, multiple linear regression models, etc. The research period is 1979–2020. The results show that in the beginning of the twenty-first century in southeastern Europe there is a tendency of faster increase in the average August air temperatures compared to the increase in average July air temperatures. Thus, the temperature in August is already higher than that in July. The causes for these changes are changes in atmospheric circulation in summer. Over the last two decades, the transport of air masses from east and southeast has been strengthening, which for the Balkan Peninsula means a transport from water basins toward land. The intra-annual course of air temperature above a water basin, which has a maximum in August, is now becoming typical over land. This feature is not yet present in the entire studied region, but the trends from the measurements in meteorological stations show that very soon the temperatures in August could be higher than that in July over the entire territory of the Balkan Peninsula. On a more global scale, it is still unclear which mechanisms of atmospheric circulation influence the processes in southeastern Europe. Changes in ocean temperatures and atmospheric circulation in the North Atlantic are likely to have an impact. However, other factors (e.g. the increase in global temperatures, the expansion of Hadley cell) may also have an impact.

本研究重点关注夏季海洋对巴尔干半岛影响的加强。本研究主要采用趋势分析、多元线性回归模型等统计方法，研究时间为1979-2020年。结果表明，在 21 世纪初，欧洲东南部的 8 月平均气温比 7 月平均气温的上升速度更快。因此，八月的气温已经比七月高了。造成这些变化的原因是夏季大气环流的变化。在过去的二十年里，来自东部和东南部的气团输送一直在加强，这对巴尔干半岛来说意味着从水域向陆地输送。水流域上方气温的年内变化过程在 8 月达到最大值，现在正成为陆地上的典型变化。这一特征尚未出现在整个研究区域，但气象站测量的趋势表明，很快巴尔干半岛整个地区 8 月的气温可能会高于 7 月。在全球范围内，尚不清楚哪些大气环流机制影响东南欧的过程。北大西洋海洋温度和大气环流的变化可能会产生影响。然而，其他因素（如全球气温升高、哈得来环流域膨胀）也可能产生影响。这一特征尚未出现在整个研究区域，但气象站测量的趋势表明，很快巴尔干半岛整个地区 8 月的气温可能会高于 7 月。在全球范围内，尚不清楚哪些大气环流机制影响东南欧的过程。北大西洋海洋温度和大气环流的变化可能会产生影响。然而，其他因素（如全球气温升高、哈得来环流域膨胀）也可能产生影响。这一特征尚未出现在整个研究区域，但气象站测量的趋势表明，很快巴尔干半岛整个地区 8 月的气温可能会高于 7 月。在全球范围内，尚不清楚哪些大气环流机制影响东南欧的过程。北大西洋海洋温度和大气环流的变化可能会产生影响。然而，其他因素（如全球气温升高、哈得来环流域膨胀）也可能产生影响。在全球范围内，尚不清楚哪些大气环流机制影响东南欧的过程。北大西洋海洋温度和大气环流的变化可能会产生影响。然而，其他因素（如全球气温升高、哈得来环流域膨胀）也可能产生影响。在全球范围内，尚不清楚哪些大气环流机制影响东南欧的过程。北大西洋海洋温度和大气环流的变化可能会产生影响。然而，其他因素（如全球气温升高、哈得来环流域膨胀）也可能产生影响。