Abstract
The bed stability of an estuary is determined by the net import or export of sediment, which in turn is controlled by multiple processes. Apart from the upstream riverine sediment supply, the net sediment flux is largely controlled by tidal hydrodynamics and the associated sediment exchange with the sea. In general, flood dominance causes landward residual sediment transport (sediment import from the sea), and ebb dominance causes seaward residual sediment export to the sea (Guo et al., 2014). In the New Waterway, The Netherlands, , residual fluxes are mainly associated with upstream and downstream advective transport in the salt wedge and in the fresh water layer, respectively. The associated processes have been well documented (De Nijs et al., 2010; Dronkers, 2017), which result in accumulation of sediment near the tip of the salt wedge (De Nijs et al., 2010). While it is known that mixing between freshwater and saltwater layers plays an important role in the residual salinity flux, little is known however about the exchange of sediment between both layers. We aim to quantify and understand the exchange of sediment across the freshwater-saltwater interface based on field data in a stratified tidal channel.
Original language | English |
---|---|
Number of pages | 1 |
Publication status | Published - 2023 |
Event | 13th Symposium on River, Coastal and Estuarine Morphodynamics - University of Illinois campus, Urbana-Champaign, United States Duration: 25 Sept 2023 → 28 Sept 2023 https://rcem.cee.illinois.edu/ |
Conference
Conference | 13th Symposium on River, Coastal and Estuarine Morphodynamics |
---|---|
Abbreviated title | RCEM 2023 |
Country/Territory | United States |
City | Urbana-Champaign |
Period | 25/09/23 → 28/09/23 |
Internet address |
Bibliographical note
Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-careOtherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.