The oceanographic forecast capability in coastal seas is often limited by the capacity of the numerical models in correctly reproducing the complex morphology of the coastline and the exchange processes between the shelf and the open seas. In the marginal Adriatic Sea this task is of uppermost importance due to the presence of several coastal water bodies and rivers. We present here a new operational oceanographic system, called Tiresias, based on the unstructured grid model SHYFEM and representing the whole Adriatic Sea together with the lagoons of Marano-Grado, Venice and Po Delta. The novelty of this oceanographic system resides in the very high-resolution, up to 10 m, of the numerical mesh, and in the high spatial and temporal resolution of the forcing and boundary conditions that drive the forecasts. The forecast results are evaluated against sea temperature and salinity profiles, mean circulation fields derived from a regional ocean model, tide gauges and drifter trajectory. The presented results highlighted the capacity of Tiresias in forecasting the general circulation in the Adriatic Sea, as well as several relevant coastal dynamics, such as saltwater intrusion, storm surge and riverine waters dispersion.

沿海海域的海洋预报能力通常受到数值模型正确再现海岸线复杂形态以及陆架与公海之间交换过程的能力的限制。在亚得里亚海的边缘，由于存在几个沿海水体和河流，这一任务至关重要。我们在此介绍一种基于非结构化网格模型SHYFEM的新的海洋系统，称为Tyressias，该系统代表整个亚得里亚海以及Marano-Grado，Venice和Po Delta的泻湖。这种海洋学系统的新颖之处在于数字网格的高分辨率（可达10 m），以及驱动预报的强迫和边界条件的高时空分辨率。根据海水温度和盐度剖面，从区域海洋模型得出的平均环流场，潮汐仪和漂流者轨迹对预报结果进行评估。提出的结果突出了提尔西亚斯在预测亚得里亚海总体环流方面的能力，以及一些相关的沿海动态，例如盐水入侵，风暴潮和河水扩散。