Abstract
Lightweight sonar devices may be tethered to an unmanned aerial vehicle or drone and quickly deployed over water for real-time imaging in 2D and the on site creation of geolocated, interactive bathymetric maps without the need for a boat. We show how such data is useful in the preliminary stages of water searches, by providing geophysicists, hydrologists and divers with spatial depth information, the distribution of dive and equipment hazards such as entanglement objects (weed, discarded items) and sediment types. One bathymetry case study location is described in detail, with a further two summarized to demonstrate reconnaissance surveys. Limitations of drone-based sonar surveys are outlined, including dense water weed cover; limits on flight times and adverse weather conditions.
Reference17 articles.
1. Geoforensic search strategy (GSS): Ground searches related to homicide graves, terrorism and serious and organised crime;Donnelly,2021
2. Sidescan sonar
3. Underwater Forensic Investigation;Becker,2021
4. Detecting submerged objects: The application of side scan sonar to forensic contexts
5. Underwater Acoustics: Analysis, Design and Performance Sonar;Hodges,2010
Cited by
8 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献