Our core geophysical activities include the acquisition of side scan sonar, shallow seismic and magnetometer data.

We use side scan sonars to resolve discreet features such as localised pipeline damage, small unexploded ordnance, cable exposure, submerged wreckage and even tiny biogenic reef structures.

Side-scan sonar surveys are versatile and provide detailed imagery for several applications, including habitat mapping, unexploded ordnance detection, offshore wind and rig site surveying, and aggregate resource assessment surveying.  We provide high frequency and ultra-high frequency systems, with the latest in chirp and multi-pulse capabilities capable of imaging the smallest of targets. 

Sub-bottom profiler data allows us to understand the underlying geology for safe and effective planning.

We provide a range of single-channel profiling solutions, from high-frequency systems capable of identifying buried objects and resolving subtle changes in sub-surface conditions. We work with lower frequency systems such as boomers and sparkers, which allow us to penetrate deeper. 

Land survey services include UXO survey, utility survey and seismic refraction.

Depending upon the project requirements and anticipated geology, we use a variety of seismic sources including a hammer impacting a metal plate, buffalo guns, weight drops, and if required, explosive sources. As the seismic energy travels through the material, it is refracted and reflected at the interface between these layers.

Where the velocity of the underlying layer is higher than that of the above layer, some of the seismic energy is critically refracted from the interface, travelling at the velocity of the lower layer refracting energy back to the surface. Geophones are placed on the surface, typically in a line, to record the incoming refracted waves. Typical applications include mapping the depth to bedrock, determining the rippability of bedrock and locating faults and fractures.

Read about our UAV and topographic services