A model simulating the complex marine dynamics along the central-eastern coast of Tunisia is set up aiming at its application to coastal management and conservation studies. The model includes a zoom on the Bay of Monastir in the centre of the domain, a coastal area that suffers from environmental problems exacerbated by the intense economic activities it hosts. Model validation was performed using observational and analysis data. The model closely reproduces the main hydrodynamic characteristics of the water masses in relation to the complex bathymetry of the area and the effects of the large scale circulation, in particular the intrusion of the water masses of Atlantic origin. The seasonal variability and the effects of particular events as heavy precipitation episodes were also studied using the principal component analysis. It is concluded that the high resolution of the model allows a fine analysis of the water movements in particular in and around the Bay of Monastir which acts as a barrier to the water flow on the larger scale. As an application, the particle transport module included in the model was used to test the dispersion of matter along the coasts and offshore. It is shown that the release of particle-charged water when currents are directed offshore can improve the dispersion of particles away from the coasts, thus enabling better environmental conditions for the region.

建立了一个模拟突尼斯中东部海岸复杂海洋动力学的模型，旨在将其应用于海岸管理和保护研究。该模型包括对区域中心莫纳斯提尔湾的放大，该沿海地区遭受着环境问题的困扰，而该地区密集的经济活动又加剧了环境问题。使用观察和分析数据进行模型验证。该模型紧密地再现了与该地区复杂的水深测量和大规模环流的影响有关的水团的主要水动力特征，特别是来自大西洋的水团的入侵。还使用主成分分析研究了季节变化和强降水事件等特定事件的影响。结论是，该模型的高分辨率可以对水流运动进行精细分析，特别是莫纳斯提尔湾及其周围的水流运动，莫纳斯提尔湾在更大范围内充当了水流的屏障。作为一项应用，模型中包含的粒子传输模块用于测试沿海和近海物质的分散。研究表明，当水流流向近海时，带颗粒的水的释放可以改善颗粒远离海岸的分散，从而为该地区带来更好的环境条件。