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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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TIN-based digital terrain modelling using multibeam data De Wulf, A.; Hennau, M.; Constales, D. (2006). TIN-based digital terrain modelling using multibeam data, 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. 186-189 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 Marine Archive 114187 [ download pdf ]
Documenttype: Congresbijdrage

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Trefwoorden

Aquatic sciences > Marine sciences > Earth sciences > Oceanography > Physical oceanography > Hydrography Data > Oceanographic data > Bathymetric data Measurement > Depth measurement > Bathymetry Measurement > Depth measurement > Echosounding

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

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Abstract

The latest bathymetric sounding equipment that is available nowadays, especially the multibeam echosounder, yield a very dense bottom sampling. When compared to the common singlebeam echosounder, an enormous amount of data is produced that needs to be processed in a correct and fast way. Grid-overlay (by local linear or more sophisticated interpolation and attributing values to individual grid cells) is not an option here as this method uses an interpolation of the measured values and hence will either cause accuracy loss or generate a still larger amount of data. A triangular irregular network (TIN for short), especially the Delaunay triangulation (Dt), does respect the actual measurements and will not generate new data. In literature, a number of algorithms have been developed that determine the Dt of a set of points (vertices) given in the plane.

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