Ammunition detection using high frequency multibeam snippet backscatter information

Kunde, Tina, Held, Philipp, Sternberg, Harald and Schneider von Deimling, Jens (2018) Ammunition detection using high frequency multibeam snippet backscatter information Marine Pollution Bulletin, 133 . pp. 481-490. DOI 10.1016/j.marpolbul.2018.05.063.

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Supplementary data:

Abstract

Highlights

• Improved position accuracy of up to 0.08 cm using SAPOS®-corrected DGNSS
• High-resolution snippet backscatter to detect and monitor UXO and its environment
• Combined evaluation of bathymetry, backscatter intensities, and sediments

Abstract

The present study reports the evaluation of snippet backscatter information gathered with a high-frequency multibeam echosounder system (200–400 kHz) due to their usability to detect ammunition of different sizes in shallow coastal waters. Besides the feasibility of the snippet backscatter data, it was focused on the attainable horizontal accuracy in comparison to side-scan sonar and autonomous underwater vehicle (AUV) surveys. The data was collected in shallow coastal waters of up to 18 m water depth (Baltic Sea) close to an ammunition dumping site characterized by an almost flat seafloor covered with sand and silt sediments. The analysis of the multibeam compared to sidescan data indicates the snippet backscatter to be a promising prospective method for ammunition detection and being able to improve horizontal position accuracy of up to 0.08 m.

Document Type: Article
Keywords: Ammunition detection, Baltic Sea, DGNSS, Multibeam echosounder, Snippet backscatter, UXO
Research affiliation: OceanRep > The Future Ocean - Cluster of Excellence
OceanRep > GEOMAR > FB4 Dynamics of the Ocean Floor > FB4-GDY Marine Geodynamics
Refereed: Yes
DOI etc.: 10.1016/j.marpolbul.2018.05.063
ISSN: 0025-326X
Projects: BONUS, Future Ocean
Date Deposited: 26 Jun 2018 07:17
Last Modified: 26 Jun 2018 07:17
URI: http://eprints.uni-kiel.de/id/eprint/43495

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