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.","AbstractOtherLang":null,"BibLvlCode":"AM","StandardTitle":"The effect of Hedwige-Prosperpolder on the tidal propagation in the Scheldt estuary","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-01 01:38:49.366832","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2025,"MonPub":null,"DateUpdate":"2025-06-27","DateCreate":"2025-06-27","SecASFANote":null,"ConfID":null,"PeerRev":0,"VlizCoreFlag":1,"WoScode":null,"VABBcode":null,"OpenAcc":0},"refs":null,"anarec":{"AnaID":409136,"PubliDate":2025,"Pagination":"75","XtraPublOfAnaID":null,"ISBN":null,"Volume":null,"Issue":null,"BRefMon":409135,"BRefMonRR":"Oosterlee, L.; Schoelynck, J. (Ed.) (2025). 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