Impacts Of SLR-upscaled Nourishment Scenarios On Decadal Cross-shore Dynamics

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Projections of high rates of sea level rise have stimulated proposals for adaptation strategies with increasingly high nourishment volumes. Nourishment strategies involving higher sand volumes can be accomplished by increasing the volume of individual nourishments or by decreasing the time interval between successive nourishments. The optimal placement of the sediment volumes in the cross-shore and alongshore to attain our coastal management goals is still under debate. From a long term, large scale perspective only the added sediment volume may be considered, regardless of the placement. A widely accepted perception is that coastal profiles respond to nourishment by rapid equilibration to an equilibrium shape including the added sand volume. However, the timescale of the redistribution of the sediment may be slower than the desired spreading rate of the added sediment, causing sediment to accumulate at some parts of the profile, while leaving other elevations sediment starved. This research aims to examine decadal-scale coastal profile response to nourishment strategies upscaled with sea level rise (SLR) whereby potential nourishment strategy impacts for beach width (fluctuations), dune growth potential and momentary coastline are mapped.
Original languageEnglish
Title of host publicationCoastal Engineering 2022
Subtitle of host publicationProceedings of 37th International Conference
EditorsDaniel Cox
PublisherASCE - COPRI
Number of pages2
ISBN (Electronic)9780989661164
Publication statusPublished - 2023
EventICCE 2022: 37th Conference on Coastal Engineering - International Convention Centre, 14 Darling Drive, Sydney, Australia
Duration: 4 Dec 20229 Dec 2022

Publication series

NameProceedings of the Coastal Engineering Conference
PublisherASCE - COPRI
ISSN (Print)0161-3782


ConferenceICCE 2022
Abbreviated titleICCE 2022
Internet address


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