Ab'/> Interannual variability of Danube waters propagation in summer period of 1992–2015 and its influence on the Black Sea ecosystem
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首页> 外文期刊>Journal of marine systems: journal of the European Association of Marine Sciences and Techniques >Interannual variability of Danube waters propagation in summer period of 1992–2015 and its influence on the Black Sea ecosystem
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Interannual variability of Danube waters propagation in summer period of 1992–2015 and its influence on the Black Sea ecosystem

机译：1992 - 2015年夏季多瑙河水域繁殖的依赖性变异及其对黑海生态系统的影响

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AbstractThe propagation of the Danube River plume has strong interannual variability that impacts the local balance of nutrients and the thermohaline structure in the western Black Sea. In the present study, we use a particle-tracking model based on satellite altimetry measurements and wind reanalysis data, as well as satellite measurements (SeaWiFS, MODIS), to investigate the interannual variability in the Danube plume pathways during the summer from 1993 to 2015. The wind conditions largely define the variability in the Danube water propagation. Relatively low-frequency variability (on periods of a week to months) in the wind stress curl modulates the intensity of the geostrophic Rim Current and related mesoscale eddy dynamics. High-frequency offshore wind-drift currents transport the plume across isobaths and provide an important transport link between shelf and offshore circulation. Inherent plume dynamics play an additional role in the near-mouth transport of the plume and its connection with offshore circulation.During the years with prevailing northeast winds (~30% of studied cases), which are usually accompanied by increased wind curl over the Black Sea and higher Danube discharge, an alongshore southward current at the NorthWestern Shelf (NWS) is formed near the western Black Sea coast. Advected southward, the Danube waters are entrained in the Rim Current jet, which transports them along the west coast of the basin. The strong Rim Current, fewer eddies and downwelling winds substantially decrease the cross-shelf exchange of nutrients.During the years with p
机译：<！[cdata [ 抽象 多瑙河羽流的传播具有强大的续际变化，影响营养素的局部平衡和热卤素结构西红海。在本研究中，我们使用基于卫星高度测量和风力分析数据的粒子跟踪模型，以及卫星测量（SEAWIFS，MODIS），调查1993年至2015年夏季多瑙河羽流途径的际变异性。风条件在很大程度上在多瑙河水传播中定义了变化。风力应力卷曲中相对低频的变化（在一周到几个月）调制出地球滴式轮辋电流的强度和相关的Messcale涡流动力学。高频海上潮流漂流电流在IsobAls上运输羽流，并提供货架和海上循环之间的重要交通连接。固有的羽流动力学在羽毛的近口运输中发挥了额外的作用及其与海上循环的连接。 普遍存在的东北风（〜30％的学习案例），通常伴随着黑海上的风卷曲和较高的多瑙河放电，西北货架（NWS）的沿海南风形成在西黑海海岸附近。向南方向方向，多瑙河水域夹带在轮辋目前的喷气机中，该喷气机沿着盆地的西海岸运输。强大的轮辋电流，较少的eddies和贫风风大大降低了营养素的跨货架交换。

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