IMIS

A new integrated search interface will become available in the next phase of marineinfo.org.
For the time being, please use IMIS to search available data

 

[ report an error in this record ]basket (1): add | show Print this page
one publication added to basket [34862]
Sediment transport rates over bedforms: observations and model predictions
Powell, H.J.; Voulgaris, G.; Collins, M.B.; Bastos, A.C. (2000). Sediment transport rates over bedforms: observations and model predictions, in: Trentesaux, A. et al. Marine Sandwave Dynamics, International Workshop, March 23-24 2000, University of Lille 1, France. Proceedings.
In: Trentesaux, A.; Garlan, T. (Ed.) (2000). Marine Sandwave Dynamics, International Workshop, March 23-24 2000, University of Lille 1, France. Proceedings. Université de Lille 1: Lille. ISBN 2-11-088263-8. 240 pp., more
Available in  Authors 
Document type: Conference paper
Keyword
    Marine/Coastal
Authors  Top 
  • Powell, H.J.
  • Voulgaris, G.
  • Collins, M.B.
  • Bastos, A.C.
Abstract
    Hydrodynamic data and sea bed observations were collected from an autonomous multi-sensor tripod (STABLE) in the vicinity of the Broken Bank, off the Norfolk coast, UK. The performance of 10 existing predictive sediment transport formulae are compared against sediment transport rates inferred from observed ripple migration rates. A refined bottom roughness model proposed by Powell et al. (in this volume) is adopted here: Log (k5) = 4.09 èta cos thètaalpha - 3.42Wide variation between the sediment transport rate results is evident. A recalibrated formula is suggested, similar to those proposed by Soulsby (1993), Williams et al. (1989) and Hardisty (1983).Lb = Bg(1 - rho/ rho5)(taub - taucr)U100 This formula offers considerable improvement over those proposed previously.
All data in the Integrated Marine Information System (IMIS) is subject to the VLIZ privacy policy Top | Authors