Coastal & Environmental

Monitoring Programs

Long-Term Monitoring for Evolving Environmental & Coastal Systems

Coastal environments are constantly changing. Sediment moves, habitats shift, and underwater conditions change seasonally and year over year. The Hat Island monitoring project demonstrates how integrated bathymetry and calibrated backscatter data can be used to create a repeatable record of environmental conditions that supports long-term coastal understanding.

High-resolution bathymetric imagery of seabed around Hat Island

Close-up Bathymetry images of hold-fast rock structures

Identifying Environmental Features

Integrated bathymetry and backscatter datasets revealed sediment variation, habitat boundaries, and hold-fast structures critical to kelp growth and environmental stability.

Angle Range Analysis effectively demonstrates sediments within the growth area. Findings were confirmed through visual and physical ground truthing. The teal/green swath represents sand infiltration into the purple holdfast area.

Establishing The Baseline

Using multibeam bathymetry and calibrated backscatter, we created a high-resolution baseline of the site’s seafloor conditions, habitat extents, and substrate composition. This dataset established a baseline mapping of substrate, habitat and morphology.

Repeatable Monitoring

Max Backscatter Image of Holdfasts

Survey methods and positioning systems were designed for repeatability, allowing datasets collected over time to be directly compared with confidence. Consistent acquisition improves clarity in long-term monitoring efforts.

Backscatter Mosaic of Eelgrass Beds

Multi-Sensor datasets provide a clearer understanding of underwater conditions than a single data source alone.

Calibrated Beam Backscatter Mosaic

Supporting Long-Term Coastal Understanding

The result is a repeatable, defensible dataset that supports habitat management and long-term environmental planning.

Methods and Capabilities