Water level time series and sediment grain size model

The environment of ebb-tidal deltas between barrier island systems is characterized by a complex morphology with ebb- and flood-dominated channels, shoals and swash bars connecting the ebb-tidal delta platform to the adjacent island. These morphological features reveal characteristic surface sediment grain-size distributions and are subject to a continuous adaptation to the prevailing hydrodynamic forces. The mixed-energy tidal inlet Otzumer Balje between the East Frisian barrier islands of Langeoog and Spiekeroog in the southern North Sea has been chosen here as a model study area for the identification of relevant hydrodynamic drivers of morphology and sedimentology. We compare the effect of high-energy, wave-dominated storm conditions to mid-term, tide-dominated fair-weather conditions on tidal inlet morphology and sedimentology with a process-based numerical model. […]

介于障壁岛系统之间的潮间带三角洲环境，以其复杂的形态学特征为特征，潮汐通道、浅滩和冲刷带构成了潮间带三角洲平台与邻近岛屿之间的连接。这些形态学特征揭示了典型的表面沉积物粒径分布，并持续适应着占主导地位的水动力作用。在此，我们选取了位于北海南部东弗里士兰障壁岛的长角岛和斯皮克岛之间的混合能量潮汐入口Otzumer Balje作为模型研究区域，以识别与形态学和沉积学相关的关键水动力驱动因素。我们利用基于过程的数值模型，对比了高能量、以波浪为主导的暴风雨条件与中期、以潮汐为主导的晴好天气条件对潮汐入口形态学和沉积学的影响。