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Archeological site investigations using very high resolution 3D seismics
Romijn, R.; Missiaen, T.; Kinneging, N.; Blacquière, G.; van den Brenk, S. (2004). Archeological site investigations using very high resolution 3D seismics, in: Simons, D.G. et al. Proceedings of the Seventh European Conference on Underwater Acoustics, ECUA 2004, Delft, The Netherlands, 5 - 8 July, 2004. pp. 951-956
In: Simons, D.G.; Blacquière, G. (2004). Proceedings of the Seventh European Conference on Underwater Acoustics, ECUA 2004, Delft, The Netherlands, 5 - 8 July, 2004. TNO Physics and Electronics Laboratory: The Hague. ISBN 90-5986-080-2. , more

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Document type: Conference paper

Keyword
    Marine/Coastal

Authors  Top 
  • Romijn, R.
  • Missiaen, T., more
  • Kinneging, N., more
  • Blacquière, G.
  • van den Brenk, S.

Abstract
    In the IMAGO project, the problem of finding wooden shipwrecks buried in the fine-grained sediment bottoms of shallow Dutch inland waterways is addressed. A trial survey was carried out, using a Very High Resolution 3D seismic acquisition system, which consists of a single source and 8 streamers. With a suitable shot interval and a smart recording strategy we can obtain a subsurface spatial sampling grid of 0.5 by 0.5 m. To support this dense grid, accurate navigation data is obtained by two DGPS antennas enabling us to calculate the orientation of the streamers independent of the sailing direction. Normal move out velocity is not critical to the stacking process, but vertical position variations, together with horizontal (offset) variations can be detrimental. Aided by the multibeam echo sounder and by picking the water bottom reflection times from the seismic data, the image is greatly enhanced.

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