Coastal Innovation Delta | mysimulator.uk

Understanding Dynamic Coastlines: A Simulation Approach

Coastal environments are incredibly complex systems shaped by continuous interactions between land and sea. This simulation explores the fundamental processes driving coastal evolution, from erosion to sediment transport, providing a powerful tool for understanding these dynamic landscapes.

mysimulator teamUpdated June 2026≈ 5 min read▶ Open the simulation

Wave Action & Erosion

Waves are the primary force shaping coastlines. Their energy causes both constructive (deposition) and destructive (erosion) processes.

The angle at which waves approach the shore – wave steepness – significantly impacts erosion rates. Higher angles generate more concentrated wave energy, leading to greater erosion of softer sediments like sand.

Erosion Rate ∝ Wave Steepness * Sediment Grain Size

Sediment Transport Mechanisms

Coastal sediment movement is driven by wave action and longshore currents. These currents transport sediments along the shoreline.

Longshore drift, a key process, describes the net movement of sediment parallel to the coastline due to waves approaching at an angle.

Velocity of Longshore Current ∝ Wave Height * Sin(θ)

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Coastal Landform Formation

The interplay of wave action and sediment transport creates various coastal landforms, including beaches, spits, barrier islands, and mudflats.

Beaches are formed by deposition of eroded material, while spits develop as elongated ridges of sand extending from the coastline due to longshore drift.

Simulation Parameters & Control

Within this simulator, you can adjust parameters such as wave height, current velocity, sediment grain size distribution, and coastal slope to observe their impact on erosion and deposition.

Experimenting with these variables allows you to gain a deeper understanding of the complex relationships governing coastal processes.

Frequently asked questions

What types of sediment are most susceptible to erosion?

Fine-grained sediments like sand and silt are more easily eroded by wave action than coarser materials like gravel.

How does coastline orientation affect coastal processes?

Coastlines oriented perpendicular to prevailing winds and waves experience greater exposure to erosive forces.

Can this simulation be used to predict future coastal changes?

While the simulator provides valuable insights, predicting long-term coastal change requires complex models incorporating climate data and human influences.

Try it live

Everything above runs in your browser — open Coastal Innovation Delta and change the parameters while it is running. Nothing is installed, nothing is uploaded, the whole model lives in one tab.

▶ Open Coastal Innovation Delta simulation