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Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.

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one publication added to basket [106239]

Processing and filtering of multibeam data: grid modelling versus tin based modelling De Wulf, A.; Hennau, M.; Constales, D. (2006). Processing and filtering of multibeam data: grid modelling versus tin based modelling, in: Evolutions in hydrography, 6th - 9th November 2006, Provincial House Antwerp, Belgium: Proceedings of the 15th International Congress of the International Federation of Hydrographic Societies. Special Publication (Hydrographic Society), 55: pp. 75-79 In: (2006). Evolutions in hydrography, 6th - 9th November 2006, Provincial House Antwerp, Belgium: Proceedings of the 15th International Congress of the International Federation of Hydrographic Societies. Special Publication (Hydrographic Society), 55. International Federation of Hydrographic Society: London. 234 + cd-rom pp., meer In: Special Publication (Hydrographic Society). Hydrographic Society: London. ISSN 0309-8303, meer

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Beschikbaar in	Auteurs
VLIZ: Open access 113842 [ download pdf ]
Documenttype: Congresbijdrage

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Trefwoorden

Aquatic sciences > Marine sciences > Earth sciences > Oceanography > Physical oceanography > Hydrography Data > Oceanographic data > Bathymetric data Equipment > Remote sensing equipment > Sonar > Active sonar > Multibeam sonar Mapping > Seafloor mapping Measurement > Depth measurement > Echosounding Modelling Models > Mathematical models Marien/Kust

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Auteurs		Top
De Wulf, A., meer Hennau, M., meer Constales, D.

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Abstract

Multibeam echosounder measurements serve to make a digital terrain model (DTM) of the seafloor. The Delaunay triangulation is a widely appreciated and investigated mathematical model to represent the relief of such a terrain and is highly efficient for building triangular irregular networks out of non-homogeneous data such as raw multibeam data. However, most multibeam systems deliver equidistant interpolated data, allowing faster processing to be achieved by using equidistant grid modelling. Both approaches yield their own advantages and drawbacks. More specifically, the filtering options of TIN and grid models are quite different. An analysis of both workflows will be worked out.

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