RT journal article T1 A numerical simulation study of the hydrodynamic effects caused by morphological changes in the Guadalquivir River Estuary A1 Sirviente Alonso, Sara A1 Sánchez Rodríguez, Jairo A1 Gómiz Pascual, Juan Jesús A1 Bolado Penagos, Marina A1 Sierra Padilla, Ana A1 Ortega Díaz, Teodora A1 Álvarez Esteban, Óscar A1 Forja Pajares, Jesús A1 Bruno Mejías, Miguel A2 Física Aplicada A2 Química Física K1 Hydrodynamical model, Guadalquivir Estuary, Tidal dynamics Amplification, Bottom depth changes AB This study presents an analysis of the impacts of the changes in bottom depth along the Guadalquivir Estuary on tidal dynamics. A realistic non-linear 1D numerical model, incorporating changes in both breadth and bottom depth, was employed to investigate the involved effects. The findings reveal a significant amplification of the M2 tidal wave towards the upper region of the Estuary, resulting from the gradual deepening caused by multiple dredging operations. The Estuary exhibits a pronounced tendency towards resonance, which is further enhanced by its deepening, resulting in reduced bottom friction and a smaller decrease in tidal wave amplitude as it propagates through the Estuary. The alterations in depth, particularly in breadth, along the Estuary play a crucial role in determining the magnitude of the resonant response of the M2 tidal wave. PB Elsevier SN 0048-9697 YR 2023 FD 2023 LK http://hdl.handle.net/10498/30743 UL http://hdl.handle.net/10498/30743 LA eng DS Repositorio Institucional de la Universidad de Cádiz RD 07-nov-2026