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Central European Blocking Anticyclones and the Influences Imprint over the Romania’s Climate

机译:中欧封锁反气旋及其对罗马尼亚气候的影响

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Blocking anticyclonic circulations from Europe are provoking climatic episodes responsible for discomfort, human and financial loses. During the summer, these episodes are known for prolonged droughts and maximum temperatures often exceeding 35 °C to 40 °C. In the cold season, the rainfalls are close to 0 while the daily minimum temperatures are low under the average period. For this study, we used a synoptic classification which is available especially for Central Europe but works similarly for Romanian territory too. We aim to follow what kind of climatic conditions these circulations are producing in Romania during their presence in Europe. ECA&D daily gridded climatic dataset was used in this study. The study period lasts from 1961 to 2012. We used the minimum and maximum daily temperatures as well the rainfall quantities recorded. Since the output volume of data was too high, we aggregated the results into yearly multiseasonal average. In order to classify the synoptic patterns as blocking anticyclones, we used two synoptic situations from Hess-Brezowsky defined as Anticyclone High Central (HM) and High British Isles (HB). We calculated the thermic anomalies as well the rainfall quantities recorded in Romania during the presence of these circulations in central Europe. The results shows a perspective over the synoptic conditions in Romania during the presence of the above mentioned synoptic types in Central Europe.
机译:阻止来自欧洲的反气旋循环正在引起引起不适,人员和经济损失的气候事件。在夏季,这些事件以长期干旱和最高温度经常超过35°C至40°C而闻名。在寒冷季节,降雨接近于零,而在平均时期内每日最低温度较低。在本研究中,我们使用了天气分类法,该分类法尤其适用于中欧,但在罗马尼亚领土上也是如此。我们的目标是追踪罗马尼亚在欧洲出现这些循环时产生的气候条件。本研究使用ECA&D每日网格气候数据集。研究期为1961年至2012年。我们使用了最低和最高每日温度以及记录的降雨量。由于数据的输出量太大,因此我们将结果汇总为年度多季节平均值。为了将天气模式分类为阻塞性反气旋,我们使用了来自Hess-Brezowsky的两个天气情境,分别定义为“高中环气旋”(HM)和“高不列颠群岛”(HB)。我们计算了中欧出现此类环流时罗马尼亚所记录的热异常以及降雨量。结果显示了在中欧存在上述天气类型时罗马尼亚的天气状况。

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