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document
Hoonhout, B.M. (author), de Vries, S. (author)
Mega nourishments are a novel approach to stimulating coastal safety and resilience. Mega nourishments are intended to spread along the coast on a decadal time scale by natural sediment transport processes with a minimum of intrusion into the natural coastal system. The supratidal morphodynamic behaviour of mega nourishments is not well...
journal article 2019
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Cohn, Nicholas (author), Hoonhout, B.M. (author), Goldstein, Evan B. (author), de Vries, S. (author), Moore, Laura J. (author), Vinent, Orencio DurĂ¡n (author), Ruggiero, Peter (author)
Coastal landscape change represents aggregated sediment transport gradients from spatially and temporally variable marine and aeolian forces. Numerous tools exist that independently simulate subaqueous and subaerial coastal profile change in response to these physical forces on a range of time scales. In this capacity, coastal foredunes have...
journal article 2019
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Hoonhout, B.M. (author), de Vries, S. (author)
Mega nourishments are intended to enhance growth and resilience of coastal dunes on medium to long time scales by stimulation of natural sediment transport processes. The growth and resilience of coastal dunes largely depends on the presence of a continuous supply of aeolian sediment. A recent example of a mega nourishment is the 21 Mm<sup>3<...
journal article 2017
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Hoonhout, B.M. (author)
This thesis explores the nature of aeolian sediment availability and its influence on aeolian sediment transport. The aim is to improve large scale and long term aeolian sediment transport estimates in (nourished) coastal environments. The generally poor performance of aeolian sediment transport models with respect to measurements in coastal...
doctoral thesis 2017
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de Vries, S. (author), Verheijen, A.H. (author), Hoonhout, B.M. (author), Vos, S.E. (author), Cohn, Nicholas (author), Ruggiero, Peter (author)
This paper shows the first results of measured spatial variability of beach erosion due to aeolian processes during the recently conducted SEDEX2 field experiment at Long Beach, Washington, U.S.A.. Beach erosion and sedimentation were derived using series of detailed terrestrial LIDAR measurements of beach morphology during three low tide...
conference paper 2017
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Luijendijk, A.P. (author), Velhorst, R.L.C. (author), Hoonhout, B.M. (author), de Vries, S. (author), Ranasinghe, R.W.M.R.J.B. (author)
This study presents some recent developments in coastal morphological modeling focusing on flexible meshes, flexible coupling between models operating at different time scales, and a recently developed morphodynamic model for the intertidal and dry beach. This integrated modeling approach is applied to the Sand Engine mega nourishment in The...
conference paper 2017
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Hoonhout, B.M. (author), Luijendijk, A.P. (author), Velhorst, R.L.C. (author), de Vries, S. (author), Roelvink, J.A. (author)
Expanding knowledge concerning the close entanglement between subtidal and subaerial processes in coastal environments initiated the development of the open-source Windsurf modeling framework that enables us to simulate<br/>multi-fraction sediment transport due to subtidal and subaerial processes simultaneously. The Windsurf framework couples...
conference paper 2017
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Wijnberg, K.M. (author), Nijhuis, S. (author), Hulscher, SJMH (author), van Bergen, J. (author), Meijer, V.J. (author), Hoonhout, B. (author), Janssen, M. (author), Hoekstra, J.D. (author), de Groot, A.V. (author), Goessen, P. (author), van Gelder-Maas, C. (author)
abstract 2017
document
Hoonhout, B.M. (author), de Vries, S. (author)
Spatial variations in aeolian sediment transport were measured at the Sand Motor mega nourishment in The Netherlands during a six week field campaign in the fall of 2014. A consistent significant increase in sediment transport in downwind direction (positive gradient) was measured over the intertidal beach area, indicating that the intertidal...
journal article 2017
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Hoonhout, B.M. (author), de Vries, S. (author)
Aeolian sediment transport is influenced by a variety of bed surface properties, like moisture, shells, vegetation, and nonerodible elements. The bed surface properties influence aeolian sediment transport by changing the sediment transport capacity and/or the sediment availability. The effect of bed surface properties on the transport capacity...
journal article 2016
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Hoonhout, B.M. (author), Radermacher, M. (author), Baart, F. (author), Van der Maaten, L.J.P. (author)
Large, long-term coastal imagery datasets are nowadays a low-cost source of information for various coastal research disciplines. However, the applicability of many existing algorithms for coastal image analysis is limited for these large datasets due to a lack of automation and robustness. Therefore manual quality control and site- and time...
journal article 2015
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Hoonhout, B.M. (author), de Vries, S. (author), Cohn, N (author)
Supply-limiting factors, like moisture content and sediment armoring,<br/>influence coastal aeolian sediment transport and subsequently dune evolution<br/>significantly. We organized a 6-week field experiment on the influence of<br/>spatiotemporal variations in supply on coastal aeolian sediment transport at the<br/>Sand Motor, The Netherlands....
conference paper 2015
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Hoonhout, B.M. (author), De Vries, S. (author), Baart, F. (author), Van Thiel De Vries, J.S.M. (author), Van der Weerd, L. (author), Wijnberg, K. (author)
Existing aeolian transport formulae tend to overestimate the sediment transport volumes in coastal environments. Supply limiting factors like moisture content, shell patches, sediment sorting, vegetation and morphological features are believed to explain these overestimations. These supply limitations act on a variety of spatio-temporal scales...
conference paper 2013
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Roelvink, D. (author), Stelling, G. (author), Hoonhout, B.M. (author), Risandi, J. (author), Jacobs, W. (author), Merli, D. (author)
The formulations of the 2DH process-based, nearshore morphological model XBeach were extended to allow for curvilinear grids using a finite volume approach. The formulations were tested for schematic cases such as a circular island and a field validation study was carried out for the case of storm erosion during a construction phase of the soft...
conference paper 2012
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Hoonhout, B. (author), Thiel de Vries, J.S.M. (author)
Physical model experiments are performed at Deltares to investigate the morphological response of barrier islands on extreme storm events. The experiments included dune erosion, overwash and inundation regimes. Extensive measurement techniques made detailed comparison with numerical models possible. This paper describes the comparison between...
conference paper 2012
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Walstra, D.J.R. (author), De Vroeg, J.H. (author), Van Thiel de Vries, J.S.M. (author), Swinkels, C. (author), Luijendijk, A.P. (author), De Boer, W.P. (author), Hoekstra, R. (author), Hoonhout, B. (author), Henrotte, J. (author), Smolders, T. (author), Dekker, F. (author), Godsey, E. (author)
In order to conceive any realistic plan for post-Katrina island restoration, it is necessary to understand the physical processes that move sand along the littoral drift zone off the coast of Mississippi. This littoral zone influences the character of the Mississippi barrier islands as they exist in an ever changing cycle. To help in this...
conference paper 2012
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Hoonhout, B.M. (author), Den Heijer, C. (author)
The dune assessment methods used to ensure the safety of the lower areas in The Netherlands are based on simple empirical relations that are, strictly speaking, only valid for infinitely long, uniform and straight coasts. The wide application of these relations is mainly justified due to intentional overestimation of the expected dune erosion....
conference paper 2010
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