期刊
FRONTIERS IN ENVIRONMENTAL SCIENCE
卷 10, 期 -, 页码 -出版社
FRONTIERS MEDIA SA
DOI: 10.3389/fenvs.2022.1023269
关键词
environmental sensing; aerial-aquatic robotics; aquatic habitats; water sampling; UAV (unmanned aerial vehicle)
资金
- NERC
- NPIF grant
- Engineering and Physical Sciences Research Council [NE/R012229/1]
- EU H2020 AeroTwin project [EP/R009953/1, EP/N018494/1, EP/R026173/1, EP/S031464/1]
- Royal Society Wolfson fellowship [810321]
- Swiss National Science Foundation [RSWF/R1/18003]
- [182124]
This article introduces an Unmanned Aerial-Aquatic Vehicle (UAAV) that can perform underwater sampling and inspection at depths of up to 10 meters. With a custom solid sample filtering mechanism, it is capable of high-frequency and high-spatial-resolution sampling of aquatic environments.
Monitoring of aquatic habitats for water quality and biodiversity requires regular sampling, often in off-shore locations and underwater. Such sampling is commonly performed manually from research vessels, or if autonomous, is constrained to permanent installations. Consequentially, high frequency ecological monitoring, such as for harmful algal blooms, are limited to few sites and/or temporally infrequent. Here, we demonstrate the use of MEDUSA, an Unmanned Aerial-Aquatic Vehicle which is capable of performing underwater sampling and inspection at up to 10 m depth, and is composed of a multirotor platform, a tether management unit and a tethered micro Underwater Vehicle. The system is validated in the task of vertical profiling of Chlorophyll-a levels in freshwater systems by means of a custom solid sample filtering mechanism. This mechanism can collect up to two independent samples per mission by pumping water through a pair of glass-fibre GF/F filters. Chlorophyll levels measured from the solid deposits on the filters are consistent and on par with traditional sampling methods, highlighting the potential of using UAAVs to sample aquatic locations at high frequency and high spatial resolution.
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