Why do existing coastal defence structures need height upgrades?

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Existing Coastal Defence Structures Require Height Upgrades Due to Climate Change Impacts

Approximately 350km of Selangor's coastline has been identified as vulnerable to erosion, with climate change identified as a significant contributing factor necessitating upgrades to existing coastal defence structures. Studies indicate that these structures require an increase in height ranging from one to 1.5 metres to effectively counter the escalating effects of climate change. Beyond height adjustments, there is also a critical need to enhance the structural integrity of these defences to better withstand the forces of wave impact, as current installations have demonstrated a susceptibility to breaking in certain areas.
Height Adjustments Driven by Climate Change

The imperative for increasing the height of coastal defence structures stems directly from the observed impacts of climate change. These changes manifest in ways that threaten the efficacy of existing barriers, requiring an elevation of between one and 1.5 metres. The implementation of these necessary height upgrades is currently pending.
Enhanced Structural Strength for Wave Resistance

In addition to height modifications, the structural strength of coastal defence systems must be augmented to withstand the powerful impact of waves. In some locations, the existing structures have shown a tendency to break under the force of these waves. This necessitates the use of materials like armour rock and the exploration of more advanced coastal protection technologies.
Understanding Wave Dynamics and Sea Currents

A comprehensive understanding of wave dynamics and shifts in sea currents is paramount for effective coastal management. These factors, when not properly addressed through appropriate strategies, possess the potential to inflict severe damage to coastal areas. Therefore, a nuanced approach that considers these complex environmental forces is essential.

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Why do existing coastal defence structures need height upgrades?

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