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Modelling the biogeochemistry of a tidal flat ecosystem with EcoTiM

机译：使用EcoTiM对滩涂生态系统的生物地球化学进行建模

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The ecological tidal model simulates the cycling of carbon, nitrogen, phosphate, and silicate and describes the tidal, diurnal, and annual dynamics of the back barrier area of the island Spiekeroog in the German Bight. The region is characterized by strong tidal currents and extensive tidal flats. It is strongly influenced by the conditions in the southern part of the German Bight. This model study investigates the dependence of the model behavior on the boundary conditions and the forcing. The effect of short- and long-term sea level rise on nutrient and plankton dynamics is analyzed. As the model is set up as semi-Lagrangian with only a coarse approximation of the hydrodynamics, the seasonal and intratidal variability in the biogeochemical cycling can only be reproduced qualitatively. By varying the boundary conditions, the intrinsic dynamics of the back barrier area can be separated from boundary condition effects. This study shows that any agreement between model results and field data cannot be expected without correct boundary conditions. The seasonal variability is of major importance, while higher-frequency variability only plays a minor role.
机译：生态潮汐模型模拟了碳，氮，磷酸盐和硅酸盐的循环，并描述了德国湾Spiekeroog岛后屏障区的潮汐，昼夜和年度动态。该地区的特征是强劲的潮流和大量的滩涂。它受到德国湾南部地区条件的强烈影响。该模型研究调查了模型行为对边界条件和强迫的依赖性。分析了短期和长期海平面上升对养分和浮游生物动力学的影响。由于将模型设置为半拉格朗日模型，并且仅近似模拟了水动力，因此只能定性地再现生物地球化学循环中的季节性和潮汐内变化。通过改变边界条件，可以将后屏障区域的内在动力学与边界条件效应区分开。这项研究表明，如果没有正确的边界条件，就无法期望模型结果与现场数据之间达成任何协议。季节性变化是最重要的，而高频变化仅起次要作用。

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