Relation Between the North-Atlantic Oscillation and Hydroclimatic Conditions in Mediterranean Areas
Relation Between the North-Atlantic Oscillation and Hydroclimatic Conditions in Mediterranean Areas
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DOI：
10.1007/s11269-010-9742-5
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发表时间：
2011-03-01
影响因子：
4.3
通讯作者：
Montanari, Alberto
中科院分区：
文献类型：
--
作者：
Brandimarte, Luigia;Di Baldassarre, Giuliano;Montanari, Alberto
众所周知，地中海盆地易受冬季降水减少造成的水压力条件的影响。该地区也容易受到北大西洋涛动（NAO）的影响，北大西洋涛动是一种与北极和亚热带大西洋之间气团移位有关的大尺度气候模式。尽管以前的研究已经证明了NAO对欧洲和北非冬季气候条件的影响，但目前尚不清楚NAO与地中海地区水文气候模式的关系程度，以及它是否可以解释其最近的干旱历史。为此，本研究在两个地中海地区：意大利南部和尼罗河三角洲（埃及）研究了NAO与冬季降水、河流流量和温度之间的相互依存关系。结果表明，NAO与冬季降水和河流流量之间存在显著的联系。
Mediterranean basins are known for their susceptibility to water stress conditions resulting from a reduction in winter-season precipitation. This region is also prone to the effects of the North Atlantic Oscillation (NAO), a large-scale climatic pattern associated with a displacement of air mass between the arctic and the subtropical Atlantic. Even though previous studies have demonstrated the impact of the NAO on winter climate conditions in Europe and Northern Africa, it is still unclear to what extent the NAO is related to hydroclimatic patterns in Mediterranean areas and whether it can explain its recent drought history. To this end, this study investigates the interdependence between the NAO and winter precipitation, river flow and temperature in two Mediterranean regions: Southern Italy and Nile Delta (Egypt). The outcomes show the presence of significant connections between the NAO, winter rainfall and river discharge.