Vlaams Instituut voor de Zee

platform voor marien onderzoek

In:

Open Marien Archief

Het Open Marien Archief van België (OMA) biedt vrije toegang tot de digitale publicaties over de Vlaamse kust en het Belgisch deel van de Noordzee, en alle andere mariene, estuariene en kustgebonden publicaties van Belgische auteurs en wetenschappers en van buitenlandse wetenschappers geaffilieerd aan een Belgische instelling.

Meer info

Nieuwe zoekopdracht
meld een fout in dit recordmandje (0): toevoegen | toon Print-vriendelijke versie

Human and environmental effects on the top of the mud layer in the entrance of the Zeebrugge harbour [POSTER]
Dujardin, A.; Vanlede, J.; Meersschaut, Y. (2008). Human and environmental effects on the top of the mud layer in the entrance of the Zeebrugge harbour [POSTER], in: Mees, J. et al. (Ed.) (2008). VLIZ Young Scientists' Day, Brugge, Belgium, 29 February 2008: book of abstracts. VLIZ Special Publication, 40: pp. 46
In: Mees, J.; Seys, J. (Ed.) (2008). VLIZ Young Scientists' Day, Brugge, Belgium, 29 February 2008: book of abstracts. VLIZ Special Publication, 40. Vlaams Instituut voor de Zee (VLIZ): Oostende. ix, 96 pp., meer
In: VLIZ Special Publication. Vlaams Instituut voor de Zee (VLIZ): Oostende. ISSN 1377-0950

Ook gepubliceerd als
  • Dujardin, A.; Vanlede, J.; Meersschaut, Y. (2008). Human and environmental effects on the top of the mud layer in the entrance of the Zeebrugge harbour [POSTER], in: (2008). NCK-Days 2008: book of abstracts, March, 2008. pp. 46, meer
  • Dujardin, A.; Vanlede, J.; Meersschaut, Y. (2008). Human and environmental effects on the top of the mud layer in the entrance of the Zeebrugge harbour [POSTER]. Waterbouwkundig Laboratorium: Antwerpen. 1 poster pp., meer

Beschikbaar in Auteurs 
  • Vlaams Instituut voor de Zee [132542]
  • Vlaams Instituut voor de Zee: Open access 132543 [ download pdf ]
  • Waterbouwkundig Laboratorium: Congresverslagen V5 [132773]
Documenttypes: Congresbijdrage; Poster; Samenvatting

Trefwoorden
    Aanzanding; Verzanding; Antropogene effecten; Baggerwerk; Benthic layer; Nautische Bodem; Slib; ANE, België, Brugge, Haven van Zeebrugge [gazetteer]; Marien

Auteurs  Top 
  • Dujardin, A.
  • Vanlede, J.
  • Meersschaut, Y.

Abstract
    Navigation in the port of Zeebrugge can be hindered by the presence of a high concentrated benthic suspension (hcbs). Depth averaged suspended sediment concentrations (including the hcbs layer) range from 10mg.l-1 up to 4,OOOmg.l-1. The suspended sediment concentration within the benthic layer can reach several tens of grams per litre. The top of this hcbs layer is identified by the 210kHz acoustic reflection surface. The Nautical Bottom, a site-specific upper limit for the bulk density, above which navigation is concerned to be safe, is defined at l,200kg.m-3. A better understanding of the human and environmental effects on the hcbs layer could result in countermeasures reducing siltation and maintenance dredging.

    A statistical analysis of parameters such as weekly dredging intensity, location of the top of the mud layer, growth rate of the mud layer, fresh water input from the Leie by-pass channel, wind force and wave height in the period from 1999 till 2005 resulted in poor correlation coefficients. Three interpretations are given. Week averaged hydro-meteo data masks the occurrence of short-time events such as storms. The mud layers calculated growth rate can be levelled out due to the variable time span between soundings. Finally , dredging works are not planned solely based on the level of nautical depth, which reduces the correlation between environmental conditions and dredged volumes. However, seasonally trends are clearly visible in both human and environmental effects.

 Top | Auteurs