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Qualitative and Quantitative Description of Multibeam Echosounder Systematic Errors on Rocky Areas

Nathalie Debese 1 Nicolas Seube 1 Laurent Heydel
1 OSM
STIC - Pôle STIC [Brest]
Abstract : This paper deals with the problem of systematic depth errors made in surveying dumped rocks with multibeam echosounder. These errors may induce dangers for navigation in very shallow water areas, or huge costs for coastal engineering contractors who perform rock dumping operation and surveying. We analyze results from four different multibeam echosounder systems, and compare those data to a reference digital terrain model of a dumped rocks area obtained from a 3D terrestrial laser scanner. The systematic depth errors are statistically described and analysed on local areas. Finally, we propose a look-up table linking the error amplitude with the rock size, resulting from our error analysis.
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https://hal-ensta-bretagne.archives-ouvertes.fr/hal-00691159
Contributeur : Annick Billon-Coat <>
Soumis le : mercredi 25 avril 2012 - 14:05:34
Dernière modification le : vendredi 13 décembre 2019 - 10:42:10

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  • HAL Id : hal-00691159, version 1

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Nathalie Debese, Nicolas Seube, Laurent Heydel. Qualitative and Quantitative Description of Multibeam Echosounder Systematic Errors on Rocky Areas. Marine Geodesy, Taylor & Francis, 2012, 35 (3), pp.306-321. ⟨hal-00691159⟩

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