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Blending single beam RoxAnn and multi-beam swathe QTC hydro-acoustic discrimination techniques for the Stonehaven area, Scotland, UK

Serpetti, N. and Heath, Michael and Armstrong, F. and Witte, U. (2011) Blending single beam RoxAnn and multi-beam swathe QTC hydro-acoustic discrimination techniques for the Stonehaven area, Scotland, UK. Journal of Sea Research, 65 (4). pp. 442-455.

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    Abstract

    Surface properties of the seabed in a 180 km2 area of coastal waters (14-57 m depth) off northeast Scotland were mapped by hydro-acoustic discrimination using single and multi-beam echosounders linked to signal processing systems (RoxAnn for the single beam, and Questor Tangent Corporation (QTC) Multiview for the multibeam). Subsequently, two ground truthing surveys were carried out, using grab and TV sampling. The RoxAnn and QTC-Multiview outputs showed strong similarity in their classifications of seabed types. Classifications generated by QTC-Multiview were used to supervise those based on seabed roughness and hardness indices produced by the RoxAnn system and thereby develop a ‘blended’ map based on both systems. The resulting hydro-acoustic classes agreed well with a cluster analysis of data on sediment grain sizes from the grab sampling, and indicated that the area could be described by distinct regions of surface texture and surficial sediments ranging from muddy sand to boulders and rock.

    Item type: Article
    ID code: 29139
    Keywords: Sediment acoustic classification; RoxAnn system; QTC-Multiview system; ground truthing survey; seabed mapping; Scotland; UK, Ecology, Evolution, Behavior and Systematics, Oceanography, Aquatic Science
    Subjects: UNSPECIFIED
    Department: Faculty of Science > Mathematics and Statistics
    Related URLs:
    Depositing user: Pure Administrator
    Date Deposited: 10 May 2011 14:37
    Last modified: 27 Mar 2014 21:22
    URI: http://strathprints.strath.ac.uk/id/eprint/29139

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