The nexus between atmospheric rivers and extreme precipitation across Europe
The nexus between atmospheric rivers and extreme precipitation across Europe
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DOI：
10.1002/grl.50636
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发表时间：
2013-06-28
影响因子：
5.2
通讯作者：
Villarini, Gabriele
中科院分区：
文献类型：
--
作者：
Lavers, David A.;Villarini, Gabriele
欧洲的极端降水和洪水是一种经常性的自然灾害，造成巨大的社会经济损失。在这里，我们调查之间的连接年度最大值（AM）日降水量在泛欧尺度和大气河流（AR），狭窄的细丝，输送大部分的极向水蒸气输送内extratrophilic气旋。我们表明，AR是负责许多上午在西欧的降水天。这种关系在西欧沿海沿着尤其强烈，一些地区的前10名上午中有8个与AR有关。远在内陆的德国和波兰也看到了人工合成橡胶的影响。在负北大西洋涛动（NAO）条件下，南欧受ARs影响最大，而北方欧洲则与ARs和NAO型模式之间的正相关关系更为相关。我们的研究结果表明，AR在解释西欧极端降水分布的上尾是至关重要的。
Extreme precipitation and floods in Europe are a recurring natural hazard causing large socioeconomic damages. Here we investigate the connection between annual maxima (AM) daily precipitation at a pan-European scale and atmospheric rivers (ARs), narrow filaments that convey the majority of the poleward water vapor transport within extratropical cyclones. We show that ARs are responsible for many AM precipitation days in Western Europe. The relationship is especially strong along the western European seaboard, with some areas having eight of their top 10 AM related to ARs. The effects of ARs are also seen as far inland as Germany and Poland. Southern Europe was most affected by ARs under negative North Atlantic Oscillation (NAO) conditions, whereas northern Europe was more associated with a positive relationship between ARs and an NAO-type pattern. Our results suggest that ARs are critical in explaining the upper tail of the extreme precipitation distribution in Western Europe.