MORPHOLOGICAL EVOLUTION OF A SMALL-SCALE BEACH NOURISHMENT IN A NON-TIDAL AREA

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

  • Adell, Anna
  • Kroon, Aart
  • Björn Almström (Member of author collaboration)
  • Magnus Larson (Member of author collaboration)
  • Caroline Hallin
Combining hard and soft costal protection solutions can be an appropriate measure to enhance structure lifetime. This study aims to quantify the morphological evolution of the nourished stretch and adjacent coastlines. A small-scale beach nourishment has been performed in front of a rock revetment at site in Faxe Ladeplads in Zealand, Denmark. The overall objective is to learn more about the dynamics of small-scale nourishments in low energy environments. Monitoring techniques include repeated topographic (Trimble RTK-GPS, drone surveying) and bathymetric (single beam) measurements. To measure the hydrodynamic conditions two surface acceleration buoys deployed at -4 and -7 m water depth were used. Sediment volumes from nourishments of size 70,000 m3 and 20,000 m3 redistributed relatively quickly. The nourished material built up the cross-shore profile and a longshore bar in this area, and distributed sediments in the direction of the dominant littoral drift (SW). Results suggest that the morphological evolution of the nourishment is dependent on local hydrodynamic conditions and local geomorphology. These findings have implications for the main objectives of preventing wave overtopping onto an adjacent coastal road during extreme events and restoring a beach for recreation.
Original languageEnglish
Title of host publicationThe Proceedings of the Coastal Sediments 2023
EditorsPing Wang, Elizabeth Royer, Julie D Rosati
PublisherWorld Scientific
Publication date2023
Pages117–121
ISBN (Print)978-981-12-7989-8
ISBN (Electronic)978-981-12-7514-2
DOIs
Publication statusPublished - 2023
EventCoastal Sediments 2023 - New Orleans, United States
Duration: 11 Apr 202315 Apr 2023

Conference

ConferenceCoastal Sediments 2023
LandUnited States
ByNew Orleans
Periode11/04/202315/04/2023

ID: 347103681