Monitoring for Coastal Resilience: Preliminary Data from Five Italian Sandy Beaches.

Area of Science:

• Coastal geomorphology
• Environmental monitoring
• Remote sensing applications

Background:

• Traditional beach monitoring methods can be costly and labor-intensive.
• Continuous, high-resolution data are crucial for understanding dynamic coastal processes.
• Video-monitoring presents a viable alternative for cost-effective, long-term beach analysis.

Purpose of the Study:

• To present preliminary findings from a long-term monitoring program of Italian sandy beaches.
• To analyze nearshore morphologic variability over several years.
• To link observed morphologic changes to coastal resilience indicators.

Main Methods:

• Utilizing video-monitoring systems for continuous data acquisition.
• Analyzing beach width variations and sandbar system dynamics.
• Correlating shoreline displacements with seabed evolution patterns, specifically Net Offshore Migration (NOM).

Main Results:

• Most beach width variations are associated with sandbar system changes, particularly the offshore migration and decay of outer bars.
• Beaches exhibiting a clear Net Offshore Migration (NOM) pattern show the largest net shoreline displacements.
• Video monitoring provides valuable, continuous data for understanding beach evolution.

Conclusions:

• Video-monitoring is an effective tool for low-cost, high-quality beach morphology assessment.
• Sandbar dynamics, especially offshore migration, are key drivers of shoreline change.
• Understanding these dynamics is essential for evaluating and enhancing coastal resilience.