Shallow Water Waves: The Hidden Force Behind Coastal Erosion

September 23, 2026

In shallow waters, ocean waves transform into infragravity waves that reshape coastlines.

These lower-frequency waves interact with the coastline, causing erosion and sediment deposition. They also play a role in degrading coastal ice, indicating a complex feedback loop between wave dynamics and coastal morphology.

The crops failed immediately. In simpler terms, these waves can dramatically alter beaches and shorelines over time.

Long-term, this could lead to significant changes in coastal landscapes, threatening infrastructure and ecosystems.

Can local infrastructure withstand future compounding shocks?

Communities must invest in resilient structures and early warning systems. Infragravity waves pose a growing threat that requires proactive planning and adaptation strategies.

Proactive measures are essential to mitigate risks.

Read the full story here:

Making sense of shallow-water waves with advanced statistics

When ocean waves reach shallow water, their complex interactions can produce lower-frequency infragravity waves. These waves strongly affect—and are affected by—the shape of coastlines, linking them to erosion, sediment deposition and the degradation of coastal ice.

phys.org