About Geophysical


Stema Systems has developed a market leading sub-bottom profiling methodology using a combination of uniquely designed equipment with in-house developed Silas software, resulting in a system that can provide a host of sub-bottom analysis results catering to the clients specific needs.

Over the past 10 years this combination of hardware and software has enabled the unparalleled insight into the sea/river bottom saving the users vast amounts of expenditure by enabling preventative dredging and negating claims by ship owners by providing an accurate picture of the slip and density of the fluid mud in its harbours.

2015 Nautical Depth in Cochin Port, India

The Antea group, IIC technologies and Stema Systems collaborate as partners together on the detailed approach and methodology for the assignment […]

Silas & Rheotune enlarges harbor’s navigability

Silas & Rheotune enlarges harbor’s navigability. By using our systems the nautical depth shows more clear keel clearance as seen […]

Measuring subbottom of the Port of Bristol

Port of Bristol’s conservancy manager and port hydrographer, Mark Burrows, tells about the UK port’s difficult hydrographic requirements and the […]

RheoTune for Three Gorges Dam

China Yangtze Three Gorges Project (TGP), as one of the biggest hydropower-complex project in the world, ranks as the key […]