Numerical simulation of the evolution of the morphological features of Shuidong Bay

Qingyuan Li; Xiangchao Liu

doi:10.1117/12.3059074

2 January 2025 Numerical simulation of the evolution of the morphological features of Shuidong Bay

Qingyuan Li, Xiangchao Liu

Author Affiliations +

Proceedings Volume 13514, International Conference on Remote Sensing and Digital Earth (RSDE 2024); 1351409 (2025) https://doi.org/10.1117/12.3059074
Event: 2024 International Conference on Remote Sensing and Digital Earth, 2024, Chengdu, China

Abstract

To analyze the formation mechanism of an island in a lagoon-type bay, the coupling model of horizontal 2-D tidal current, sediment transport, and terrain evolution is adopted to reproduce the morphological features of Shuidong Bay and the focus is on the formation and evolution of Dazhou Island in Shuidong Bay. The calculation results are consistent with the actual topography. Two models of sediment transport, i.e., total-load and bed-load sand transport models, are considered. The simulation shows that Dazhou Island in Shuidong Bay is formed by the continuous deposition of silts in the lagoon under the influence of rising tide and is a geomorphic form of flood tide delta. The total-load sand transport model is more suitable for simulating the terrain evolution process than the bed-load sand transport model. The simulation results also replicated the morphological changes of the mid-bay island over a 25-year period. This study explores the formation mechanism and evolution process of the general bay morphology through numerical simulation.

(2025) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Qingyuan Li and Xiangchao Liu "Numerical simulation of the evolution of the morphological features of Shuidong Bay", Proc. SPIE 13514, International Conference on Remote Sensing and Digital Earth (RSDE 2024), 1351409 (2 January 2025); https://doi.org/10.1117/12.3059074

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