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Sonarlogger: Enabling long-term underwater sonar observations
Fourie, F.-W.; Langedock, K.; Develter, R.; Loop, H.; Peck, C.; Ponsoni, L.; Pirlet, H.; Boone, W. (2024). Sonarlogger: Enabling long-term underwater sonar observations. HardwareX 18: e00531. https://dx.doi.org/10.1016/j.ohx.2024.e00531
In: HardwareX. Elsevier: Amsterdam. e-ISSN 2468-0672, meer
Is gerelateerd aan:Flanders Marine Institute (VLIZ) (2024). Multipurpose seabed moorings: Developed for coastal dynamic seas. Oceanography Suppl. : In prep., meer
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Coastal monitoring; Sonar; Acoustic; Long-term measurements; Raspberry Pi |
| Abstract |
Coastal seas are under increasing pressure from extreme weather events and sea level rise, resulting in impacts such as changing hydrodynamic conditions, coastal erosion, and marine heat waves. To monitor changes in coastal marine habitats, such as reefs and macrophytes meadows, which add to the resilience of our coasts, consistent, medium- to long-term seafloor observations are needed. This project aims to deliver repeated, high-frequency sonar surveys on a stationary seabed mooring of a specific target area over a period of up to several months. A new stand-alone subsea system, the Sonarlogger, based on a battery pack, low-power logger and a high-resolution scanning sonar, was developed. It allows for long-term deployments with a customisable battery pack, WI-FI download and configurable sleep state. The system has been tested for over 130 days in dynamic coastal environments off the Belgian coast. Combined with auxiliary sensors, such as for measuring currents, waves and turbidity, this system enables comprehensive studies of morphologic changes and changing benthic ecosystems. Moreover, this system has the capacity to provide measurements of coastal environments during storms, where conventional systems may fall short, providing insights into event-based changes of the seafloor |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
