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Updated: Sep 25, 2025

Seawater Sampling and Collection

Seawater Sampling and Collection

Published on: June 17, 2009

A GPS-enabled seabed sediment sampler: Recovery efficiency and efficacy.

W J Hunt¹, M J Joyce¹

¹Engineering Department, Lancaster University, Bailrigg, Lancaster LA1 4YW, United Kingdom.

The Review of Scientific Instruments

|April 30, 2022

Summary

A new global positioning system (GPS) enabled sampler autonomously retrieves seabed sediments for environmental assessments. This system is effective for sampling radioactive materials and minimizes disturbance to surrounding sediments.

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Area of Science:

Environmental Science
Marine Geology
Nuclear Engineering

Background:

Environmental assessments require precise seabed sediment sampling.
Nuclear facility effluents may contain insoluble, anthropogenic radioactivity.
Existing sampling methods may lack precision or disturb sediment layers.

Purpose of the Study:

To describe the design, manufacture, and commissioning of a novel GPS-enabled sediment sampler.
To assess the sampler's suitability for environmental assessment applications, particularly those involving radioactive contaminants.
To evaluate the sampler's autonomous operation, freshwater compatibility, and ROV integration.

Main Methods:

Design and construction of a GPS-enabled autonomous sediment sampler.
Testing the sampler's efficiency and efficacy in sample recovery.
Assessing the impact of sample recovery on neighboring sediments.

Main Results:

The GPS-enabled sampler was successfully designed, manufactured, and commissioned.
The system operates autonomously and is compatible with freshwater environments and ROVs.
Tests confirmed the sampler's efficiency in recovering seabed sediments with minimal disturbance.

Conclusions:

The developed GPS-enabled sampler is a reliable tool for seabed sediment retrieval in environmental assessments.
The system is particularly valuable for sampling potentially radioactive materials from nuclear facility effluents.
Its autonomous operation and low sediment disturbance make it suitable for sensitive marine environments.