Morphodynamics of a former polder (Sieperdaschor) after breaching of the summer dike in the Scheldt estuary, SW Netherlands
Storm, C.; Sánchez Leal, R.F.; Verbeek, H. (1997). Morphodynamics of a former polder (Sieperdaschor) after breaching of the summer dike in the Scheldt estuary, SW Netherlands, in: Wang, S.S.Y. et al. (Ed.) Environmental and Coastal Hydraulics: Protecting the Aquatic Habitat. Proceedings of the XXVII Congress of IAHR. pp. 689-694
In: Wang, S.S.Y.; Carstens, T. (Ed.) (1997). Environmental and Coastal Hydraulics: Protecting the Aquatic Habitat. Proceedings of the XXVII Congress of IAHR. ASCE: New York. 1656 pp., more
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Document type: Conference paper
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| Keywords |
Earth sciences > Geology > Hydrology
Sediments
ANE, Netherlands, Westerschelde, Sieperdaschor [Marine Regions]
Marine/Coastal; Brackish water |
| Author keywords |
Morphodynamics; Morfodynamica |
| Authors | | Top |
- Storm, C.
- Sánchez Leal, R.F.
- Verbeek, H., more
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| Abstract |
After breaching of the summer dike in 1990, a former polder of 98 ha is now changing into a tidal marsh in the Scheldt (Schelde) estuary. This development is followed closely, for it serves valuable information on wetland restoration processes. The results up to now show that tidal energy is sufficient for creek formation. The new creek pattern still resembles the artificial ditch pattern, present at time of inundation. After 6 years most creeks are still widening and this will continue for at least another decade. Sediment budget calculations show that the marsh is importing sediments from the estuary. However, about 25% of the net accretion is redistribution of sediments from the eroding creeks towards the marsh surface. |
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