Seabed Mapping Surveys

We often use third-party vessels and work closely with specialist partners to collect hydrographic and geophysical data, including multibeam bathymetry (MBES) and side-scan sonar (SSS).

But our dedicated survey vessels Seren Las and Argyll Explorer are also capable of accommodating MBES, SSS and magnetometer surveys in nearshore and shallow water.

They offer an over-the-side pole-mounting system for MBES surveys and a hydraulic A-frame and winch for the deployment of towed and seabed equipment.

The services we offer include:

• Bathymetric surveys

• Wind farm site surveys

• Pipeline / cable route surveys

• Pre-dredge and post-dredge surveys

• Unexploded Ordnance (UXO) investigations

• Marine archaeological investigations

We are also specialists in EUNIS biotope and protected habitat mapping.

Ground truthing

We are recognised experts in reviewing geophysical data to ground truth seabed habitats and establish boundaries for subsequent environmental sampling.

We take information – often from grab sample and seabed imagery – to overlay on geophysical survey outputs to accurately map biotopes and delineate protected habitats.

We can then combine this information to conduct Annex I habitat assessments of any biogenic and rocky reefs present in line with best practice guidance.