Abstract The aim of this study is to develop a two-dimensional hydrodynamic tidal model for the Persian Gulf (PG2017) using 2D-MIKE21 software. The advantages of present study is accounting for the spatial variation of bed friction coefficient besides a precise bathymetry together with a 23-year of combined records of satellite altimetry data. We found that the bed friction coefficient has a significant effect on sea level changes in the region under our modeling consideration. Since the tidal behavior in the northern part of the Qeshm Island is significantly different from the other parts of the Persian Gulf, to present a more accurate hydrodynamic tidal model, the Gulf is divided into two regions where the bed friction coefficient is modeled separately for each region. The root mean square value of the differences between the amplitude of dominant constituents; M2, S2, K1, and O1 derived from the PG2017 model and that of 98 altimetry and coastal tide gauge stations are respectively equal to 1.6, 1.9, 2.8, and 1.3 cm. Moreover, comparing the PG2017 model efficiency with the FES2014, OSU12, EOT11a, DTU10, and Admiralty models shows that the PG2017 model has an improvement of 22.1%, 47.2%, 43.2%, 44.2%, and 57.6% in terms of relative error, respectively.

中文翻译：

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基于空间变床摩擦系数的波斯湾水动力潮汐模型

摘要 本研究的目的是使用 2D-MIKE21 软件开发波斯湾二维流体动力潮汐模型 (PG2017)。本研究的优点是除了精确的水深测量以及 23 年的卫星测高数据综合记录外，还考虑了床摩擦系数的空间变化。我们发现，在我们的建模考虑下，床摩擦系数对该区域的海平面变化有显着影响。由于格什姆岛北部的潮汐行为与波斯湾其他地区的潮汐行为明显不同，为了提供更准确的水动力潮汐模型，海湾分为两个区域，每个区域的床摩擦系数分别建模地区。主导成分幅值之差的均方根值；来自PG2017模型的M2、S2、K1和O1以及98个测高站和海岸测潮站的M2、S2、K1和O1分别等于1.6、1.9、2.8和1.3 cm。此外，将PG2017模型效率与FES2014、OSU12、EOT11a、DTU10和Admiralty模型进行比较，PG2017模型在相对误差方面分别提高了22.1%、47.2%、43.2%、44.2%和57.6%分别。