# Coolum Beach Coastal Geography & Erosion Study
> Explore coastal processes, erosion management, and shoreline protection strategies for Coolum Beach, Sunshine Coast. Includes sand profiling and dune care.

Tags: coastal-geography, erosion-management, sunshine-coast, dune-revegetation, longshore-drift, environmental-science, beach-health
## Coolum Beach Coastal Geography Study
*   **Location:** Sunshine Coast, QLD.
*   **Study Focus:** Observations, coastal processes, and management (Parts A–E).

## Beach Observations & Health
*   **Google Earth Findings:** Beach narrows near the Surf Club after storms; northern sections are most exposed, while southern ends are sheltered by headlands.
*   **Health Grade:** Received an **A-** grade. Wide dunes act as natural buffers, though high-traffic sections show vulnerability.

## Coastal Processes
*   **Dominant Swell:** Year-round South-easterly (SE) swell; North-easterly (NE) waves during summer storm seasons.
*   **Longshore Drift:** Net northward movement of approximately **25,000 m³/yr** of sand.
*   **Major Events:** Ex-TC Oswald (2013) produced 10.5m waves and 3m erosion scarps.

## Management & Solutions
*   **Current Infrastructure:** Rock seawall at the southern end replaces natural dunes; infrastructure like the SLSC and Holiday Park are at risk.
*   **Proposed Soft Engineering:** 
    *   **Sand Profiling:** Moving sand from the lower beach to rebuild dune faces.
    *   **Revegetation:** Planting native species to stabilize sand naturally.
*   **Council Strategy:** The Shoreline Erosion Management Plan (SEMP) focuses on 'Monitor, Maintain & Prepare'. Coolum is one of only 15 priority units on the Sunshine Coast.

## Key Takeaways
*   Beach systems are dynamic, cycling through erosion and recovery.
*   Soft engineering (natural solutions) is preferred over hard structures to maintain tourism and ecological health.
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