{"refrec":{"BRefID":366651,"RR":"<b>Goossens, M.; De Maerschalck, B.; Plancke, Y.</b> (2023). Overleg Flexibel Storten: deelrapport 24. Studie van de bruikbaarheid van morfologische modellering in kader van Flexibel Storten. Versie 3.0. <i>WL Rapporten</i>, 00_031_24. Waterbouwkundig Laboratorium: Antwerpen. VIII, 67 + 57 p. bijl. pp. <a href=\"https://dx.doi.org/10.48607/206\" target=\"_blank\">https://dx.doi.org/10.48607/206</a>","BEntID":364375,"PublicFlag":1,"CheckedFlag":0,"wosflag":0,"vabbflag":0,"RefStringPartII":". Versie 3.0. <i>WL Rapporten</i>, 00_031_24. Waterbouwkundig Laboratorium: Antwerpen.  VIII, 67 + 57 p. bijl. pp. <a href=\"https://dx.doi.org/10.48607/206\" target=\"_blank\">https://dx.doi.org/10.48607/206</a>","DocTypID":13,"DocType":"Reports","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Goossens, M.; De Maerschalck, B.; Plancke, Y.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Goossens, M.; De Maerschalck, B.; Plancke, Y.","Englishabstract":null,"AbstractOtherLang":"In het kader van de Agenda voor de Toekomst werd een gevoeligheidsanalyse uitgevoerd rond de invloed  van bepaalde modelparameters op het sedimenttransport en de morfologische veranderingen.  In voorliggende rapport werd het effect van deze parameters op de reproduceerbaar van gemeten  morfologische veranderingen in de Westerschelde (periode 2011-2015) door middel van het numerieke  NeVla-model onderzocht.<br>Algemeen wijken de resultaten, binnen het focusgebied tussen Terneuzen en Hansweert, van de  verschillende modelscenarios sterk af van de werkelijke evolutie in de Westerschelde. Menselijke ingrepen  (bagger- en stortwerkzaamheden) werden in de simulaties niet meegenomen, maar deze kunnen deze  afwijkingen slechts voor een klein deel verklaren. Opmerkelijk zijn de grote initiële volumeverandering,  wat erop wijst dat de uitgangssituatie die wordt gebruikt, niet als een evenwicht beschouwd wordt door  het model. Netto blijft de toename van het gemodelleerde volumeverlies tussen 2012 en 2015 beperkt  (ca. 2,4 Mm³ bij de referentiesimulatie). Zoals te verwachten zijn de verschillen tussen de gemodelleerde  bathymetrie en de vaklodingen het grootst in de zones die blootgesteld worden aan de meest intense  hydrodynamische condities. Verder heeft het model het moeilijk met laterale verplaatsingen van geulen en  ondiepe platen.<br>In de uitgevoerde gevoeligheidsanalyse blijkt de invloed van de kalibratieparameter en de bodemhelling parameter op de gemodelleerde morfologische verandering eerder beperkt te zijn. Wel is er een belangrijke  invloed van de mediane korrelgrootte (d50) en de gehanteerde sedimenttransport formule op de  gemodelleerde morfologische veranderingen. Tenslotte werd ook het effect van een 3D-simulatie (2 lagen in  de waterkolom) en een gewijzigde ruwheidscoëfficiënt onderzocht. ","BibLvlCode":"MS","StandardTitle":"Overleg Flexibel Storten: deelrapport 24. 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