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Object burial by bedforms: Results from instrumented modules, new data analysis concepts
Wever, Th.; Jenkins, C. (2013). Object burial by bedforms: Results from instrumented modules, new data analysis concepts, in: Van Lancker, V. et al. (Ed.) MARID 2013: Fourth International Conference on Marine and River Dune Dynamics. Bruges, Belgium, 15-17 April 2013. VLIZ Special Publication, 65: pp. 331-336
In: Van Lancker, V.; Garlan, T. (Ed.) (2013). MARID 2013: Fourth International Conference on Marine and River Dune Dynamics. Bruges, Belgium, 15-17 April 2013. VLIZ Special Publication, 65. Royal Belgian Institute of Natural Sciences/SHOM/Flanders Marine Institute (VLIZ): Oostende. ISBN 978-2-11-128352-7. 338 pp., more
In: VLIZ Special Publication. Vlaams Instituut voor de Zee (VLIZ): Oostende. ISSN 1377-0950, more

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Keyword
    Marine/Coastal

Authors  Top 
  • Wever, Th.
  • Jenkins, C.

Abstract
    Results from deployments of burial-recording instrumented modules in the Jade area of the German Bight (North Sea) are reported. The time series show significantly changing patterns of burial activity under megaripples from quiescent periods to stages of repeated burial/unburial. The bedforms reached heights of 0.5 m and migrated past the modules on twice daily time scales. As an adjunct, a scanning sonar installation showed stages of quiescenceand also stages of rapid (hourly) migration, splitting and merging activity for megaripple-scale bedforms. The experiments are designed to help predict frequencies of seabed man-made object burial and unburial. They raise issues on the connection between data and models in this practical application. We review the nature of datasets dealing with the migration behavior of larger (megaripple, sandwave) bedforms and propose that some new approaches are needed. They include: (i) adoption of meta-analysis formalisms, (ii) invention of metrics for a bedform’s stage of development; (iii) more use of larger experiment scales, manipulative experiments and instrumented modules; (iv) the gathering of a corpus of data on bedform migration. With these tools improved prediction of object burial by bedforms is feasible.

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