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| The effect of Hedwige-Prosperpolder on the tidal propagation in the Scheldt estuary Meire, D.; Boeckx, L.; Schramkowski, G. (2025). The effect of Hedwige-Prosperpolder on the tidal propagation in the Scheldt estuary, in: Oosterlee, L. et al. Book of abstracts - ECSA Focus Meeting 2025 Estuarine Restoration: From theory to practice, University of Antwerp, Antwerp, Belgium 19-23 May 2025. pp. 75
In: Oosterlee, L.; Schoelynck, J. (Ed.) (2025). Book of abstracts - ECSA Focus Meeting 2025 Estuarine Restoration: From theory to practice, University of Antwerp, Antwerp, Belgium 19-23 May 2025. University of Antwerp: Wilrijk. 106 pp., meer
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| Documenttype: Congres | |
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| Abstract |
The Hedwige-Prosperpolder is located on the border between Belgium and the Netherlands, along the Scheldt estuary. The Hedwige-Prosperpolder has an area of approximately 465 ha. The area was depoldered beginning of 2023 by excavation of the former primary dyke and an onset of a creek and gully system was excavated in the area itself.<br>In this study an assessment was made on the impact of the depoldered area on the tidal propagation in the Scheldt estuary itself and a comparison with previous model excercises. A data analysis was performed, based on the measured tidal data from gauges along the Western Scheldt and the lower Seascheldt.<br>Based on this analysis, the effect on the highwater levels at Antwerp is estimated at a reduction of about 1 - 2 cm at neap tide and 3 - 5 cm at spring tide. The largest effects are found at Liefkenshoek, just upstream Hedwige-Prosperpolder, the smallest effects at Prosperpolder, just downstream of the depoldered area. |
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