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AquapHOx-Loggers: for long-term stand-alone O2 & total pH monitoring

The AquapHOx underwater long-term loggers enable accurate and higly resolved total pH measurements, long-term O2 monitoring and trace O2 detection. They are available as single analyte shallow water and flexible deep-sea multi-analyte loggers. The cost-effective and easy-to-operate deep sea logger allows to measure O2 or total scale pH with the same compact instrument succesively. Simply exchange the sensor head, choose between different analytes and sensor formats and deploy down to 4000m water depth. For advanced underwater applications, PyroScience recently launched the unique all-in-one AquapHOx platform for monitoring critical parameters and their dynamics underwater; in open ocean, the deep sea, coastal ecosystems, rivers, lakes...

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Mapping through fluid mud

The presence of suspended sediments in water bodies presents significant challenges for the dredging industry. Existing methods to determine nautical depths are intrusive single point methods relying on in situ density or shear strength measurements1,3 or low-frequency single-beam echosounder recordings1,2. The use of single-beam echosounders is however systemically problematic as they are not practical in satisfying the CATZOC A1 coverages required for contemporary electronic navigational charting. The presence of suspended sediments in water bodies presents significant challenges for the dredging industry. Existing methods to determine nautical depths are intrusive single point methods relying on in situ...

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Slocum Glider

The Slocum glider is buoyancy-driven to enable long-range and duration remote water column observation for academic, military, and commercial applications. It can be deployed and recovered from any size vessel with minimal time on station The Slocum glider is buoyancy driven to enable long range and duration remote water column observation for academic, military, and commercial applications. The Slocum Glider can be deployed and recovered...

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MS400U MBES

The MS400U is a compact Multibeam Echosounder (MBES) specially designed for USVs or other unmanned platforms. It has a built-in sound velocity sensor and IMU & GNSS, which are the...

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S-44 and the systematic error

IHO standard S-44 is often used (or misused) to specify the quality of a hydrographic survey. While it is a useful tool, it is easy to misinterpret. One ‘misuse’ is...

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