Morphodynamic classification and coastal structure interactions in monsoonal coastal systems: implications for sustainable coastal management

Ismailluddin, Aminah and Nasir, Faerah and Yun, Lee Shin and Zainuddin, Siti Nur Hanani and Razali, Muhammad Rizal and Ramli, Muhammad Zahir and Abdullah, Mohd Azhafiz and Ariffin, Effi Helmy (2026) Morphodynamic classification and coastal structure interactions in monsoonal coastal systems: implications for sustainable coastal management. Maritime Technology and Research, 8 (3). pp. 1-19. E-ISSN 2651-205X

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Abstract

Coastal erosion has intensified coastal hazards, prompting widespread use of coastal protection structures to mitigate it. While effective, these interventions can alter natural shoreline dynamics, leading to unintended degradation. This study aims to advance understanding of beach morphodynamics under structural influence within monsoonal coastal systems. Field measurements of beach morphology and sediment characteristics were conducted across six sites during peak monsoon season, complemented by hydrodynamic simulations using MIKE 21-SW. Findings reveal distinct morphodynamic states between high-energy and low-energy environments. Energetic sites with coarser sediments and steep beach slope correspond to intermediate beach states, whereas calmer sites with finer sediments and gentle beach slope align with dissipative beach states. This study contributes to the existing body of knowledge by critically exploring the relationship between beach morphodynamics and coastal protection design discourse by cluster analysis and multidimensional scaling. Three main beach groups were identified, reflecting varying natural dynamics and designs of coastal structure. Importantly, the study emphasizes the need for region-specific management strategies, prioritising conservation in dynamic intermediate beaches and restoration in structurally constrained dissipative beaches. The research offers a repeatable and adaptable framework for assessing coastal systems shaped by both natural processes and human interventions, as well as supporting sustainable and site-specific coastal management

Item Type:	Article (Journal)
Uncontrolled Keywords:	Beach morphodynamic classification, Cluster analysis, Coastal management, Coastal protection structure, Monsoonal coastal system
Subjects:	G Geography. Anthropology. Recreation > GB Physical geography G Geography. Anthropology. Recreation > GE Environmental Sciences
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Science > Institute of Oceanography and Maritime Studies
Depositing User:	Dr Muhammad Zahir Ramli
Date Deposited:	03 Jun 2026 15:02
Last Modified:	03 Jun 2026 15:02
Queue Number:	2026-05-Q3588
URI:	http://irep.iium.edu.my/id/eprint/129177

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