Nearshore evolution at Noordwijk (NL) in response to nourishments, as inferred from Argus video imagery

B. Gerben Ruessink, R.M. van der Grinten, L.M. Vonhögen-Peeters, G. Ramaekers, Q.J. Lodder

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We use an approximately 16-year long data set of daily low-tide video images to examine the effect of three consecutive nourishments on the temporal evolution of the subtidal sandbars and the low-tide water line at Noordwijk, The Netherlands. The data set starts in 1995, with shoreface nourishments implemented in 1998 and in 2006, and a "Zwakke Schakel" beach nourishment in 2007/2008. We find that, consistent with observations elsewhere, the shoreface nourishments halted the interannual, net-seaward migration of the two sandbars. Also, the first nourishment resulted in large-scale sandbar variability known as bar switching. The beach nourishment had no effect on the sandbars, other than an immediate 50-m seaward shift of the low-tide waterline and the inner sandbar. Neither the shoreface nor the beach nourishments were found to result in an increase or decrease in the number and cross-shore extent of rip channels. On the whole, the successive nourishments have reduced the natural dynamics of the Noordwijk coastal system.
Original languageEnglish
Title of host publicationJubilee Conference Proceedings NCK-days 2012
Subtitle of host publicationCrossing borders in coastal research
EditorsW.M. Kranenburg, E.M. Horstman, K.M. Wijnberg
PublisherUniversity of Twente
ISBN (Print)978-90-365-3342-3
Publication statusPublished - 2012
Externally publishedYes
EventNCK-Days 2012: Crossing borders in coastal research - Enschede, Netherlands
Duration: 13 Mar 201216 Mar 2012


ConferenceNCK-Days 2012


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