Sand Dune Restoration Mapping
Coastal Resilience Planning is critical as we face more severe weather. We conducted drone LiDAR-derived terrain modeling for Sand Dune Restoration paired with a real-time orthomosaic. Both data sets used the same ground control targets for highly accurate georeferncing of +/- 1/10’th. We provide quality control reports from our post-processing software. Be mindful of who you hire, some inexperienced drone pilots provide poor data. We pride ourselves on being the best and most reliable in the Northeast.
Using LiDAR to Map Changing Coastal Sand Dunes
Coastal sand dunes play a vital role in protecting shorelines from erosion and storm surges. However, these natural barriers are increasingly under threat from severe weather events and long-term environmental changes. To better understand the dynamics of these shifting landscapes, our team at Active Intelligence conducted a high-resolution LiDAR mapping survey, providing critical data to support ongoing conservation and restoration efforts.
Why LiDAR for Sand Dune Mapping?
LiDAR (Light Detection and Ranging) technology enables the capture of highly detailed topographic data with centimeter-level accuracy. By using a drone-mounted LiDAR system to survey the dunes, we generated precise 3D models that reveal subtle changes in elevation and erosion patterns—insights that are often difficult to obtain with traditional survey techniques.
The Impact of Recent Storms
Coastal regions across the country have experienced significant impacts from increasingly frequent and intense weather events. Early 2024 brought a series of powerful storms that caused extensive dune erosion and reshaped parts of the coastline. Our LiDAR data confirmed substantial sand loss in surveyed areas, with storm surges dramatically altering dune structures and threatening nearby infrastructure. This information is critical for local authorities and environmental organizations developing mitigation strategies such as dune reinforcement and sand replenishment.
Historical Perspective on Beach Erosion
Coastal erosion is a long-standing issue for many shoreline communities. Previous studies have documented long-term erosion trends and explored potential solutions, emphasizing the importance of continuous monitoring. Our LiDAR survey builds on that foundation by providing updated, high-resolution data that can be compared with historical records to track changes over time and evaluate the effectiveness of restoration efforts.
Economic Effects and Tourism
Many coastal communities rely heavily on tourism, drawing visitors to their scenic beaches and recreational opportunities. However, the degradation of sand dunes presents a serious economic risk. As dunes erode, the likelihood of beach loss increases, potentially affecting businesses that depend on tourism—such as restaurants, hotels, and local shops.
Additionally, ongoing erosion can lead to declining property values and reduced tax revenues. By leveraging LiDAR technology to monitor dune changes, decision-makers can implement informed, proactive conservation measures. Protecting these natural features not only preserves the environment but also supports the economic health of coastal communities by maintaining the beauty and accessibility that attract visitors.
Next Steps for Conservation and Management
The data collected through our LiDAR mapping initiative will be shared with local stakeholders, including conservation groups, municipal planners, and researchers. By integrating our findings with existing studies, we can help develop informed strategies to protect coastal sand dunes from further erosion. Potential actions may include:
-
Sand dune restoration projects – Using LiDAR data to identify areas most in need of replenishment.
-
Natural barriers and vegetation planting – Strengthening dunes with native vegetation to prevent further loss.
-
Community engagement – Educating local residents and visitors on the importance of dune preservation.
Conclusion
The changing sand dunes serve as a reminder of the delicate balance between nature and human activity along coastlines. With LiDAR technology, we can now monitor these landscapes with unprecedented accuracy, providing valuable insights for conservation efforts. As storms and rising sea levels continue to impact coastal regions, data-driven decision-making will be essential in protecting beautiful and vital dunes for generations to come.