Sediment exchange between the subaqueous and subaerial coastal zones

Conference paper (2011)
Department
Hydraulic Engineering (CEG) (TU Delft)
Copyright: Stive, M.J.F.
Aeolian transport, morphological measurements, active profile, coastline change
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Published Date

06-09-2011

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Source:

Proceedings of 32nd International Conference on Coastal Engineering, ICCE 2010, June/July, Shanghai

Faculty

Civil Engineering and Geosciences

Department

Hydraulic Engineering

Abstract

The coastal system consists of a sub-aqueous and a sub-aerial zone which can be separated by a border. At this border sediment exchange takes place from one zone to the other. This paper hypothesizes that conditions and therefore sediment exchange at this border are dependent on active profile characteristics. To analyze morphological developments due to combined marine and aeolian processes data acquired at a measurement site located along the southwest Holland coast is exploited. Based on the monthly morphological profile measurements the border between the marine and aeolian zone is determined. It is found that during accretive conditions the vertical location of this border, and with that the conditions near the border, is dependent not on the foreshore slope of the surf/swash zone as expected but on the slope of the entire active profile.

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