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首页> 外文期刊>Theoretical and applied climatology >Multidecadal variability of summer temperature over Romania and its relation with Atlantic Multidecadal Oscillation
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Multidecadal variability of summer temperature over Romania and its relation with Atlantic Multidecadal Oscillation

机译：罗马尼亚夏季气温的年代际变化及其与大西洋年代际振荡的关系

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摘要

We investigate the multidecadal variability of summer temperature over Romania as measured at 14 meteorological stations with long-term observational records. The dominant pattern of summer temperature variability has a monopolar structure and shows pronounced multidecadal variations. A correlation analysis reveals that these multidecadal variations are related with multidecadal variations in the frequency of four daily atmospheric circulation patterns from the North Atlantic region. It is found that on multidecadal time scales, negative summer mean temperature (TT) anomalies are associated with positive sea level pressure (SLP) anomalies centered over the northern part of the Atlantic Ocean and Scandinavia and negative SLP anomalies centered over the northern part of Africa. It is speculated that a possible cause of multidecadal fluctuations in the frequency of these four patterns are the sea surface temperature (SST) anomalies associated to the Atlantic Multidecadal Oscillation (AMO). These results have implications for predicting the evolution of summer temperature over Romania on multidecadal time scales.
机译：我们调查了罗马尼亚的夏季温度的多年代际变化，该变化是在14个具有长期观测记录的气象站上测得的。夏季温度变化的主要模式具有单极结构，并显示出明显的年代际变化。相关分析表明，这些多年代际变化与北大西洋区域四个每日大气环流模式频率的多年代际变化有关。研究发现，在数十年的时间尺度上，负夏季平均温度（TT）异常与以大西洋北部和斯堪的纳维亚北部为中心的正海平面压力（SLP）异常以及以非洲北部为中心的负SLP异常有关。据推测，这四种模式的频率发生多年代际波动的可能原因是与大西洋多年代际振荡（AMO）相关的海面温度（SST）异常。这些结果对于在数十年的时间尺度上预测罗马尼亚夏季温度的演变具有重要意义。

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  • 来源
    《Theoretical and applied climatology》 |2013年第2期|305-315|共11页
  • 作者

    Monica Ionita; Norel Rimbu; Silvia Chelcea; Simona Patrut;

  • 作者单位

    Alfred Wegener Institute for Polar and Marine Research,Bremerhaven, Germany;

    Alfred Wegener Institute for Polar and Marine Research,Bremerhaven, Germany,Climed Norad,Bucharest, Romania,University of Bucharest, Faculty of Physics,Bucharest-Magurele, Romania;

    National Institute of Hydrology and Water Management,Bucharest, Romania;

    University of Bucharest, Faculty of Physics,Bucharest-Magurele, Romania,Ministry of Environment and Forests,Bucharest, Romania;

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