Dune development and aeolian transport along the Holland coas

Vries, Sierd de; Southgate, H.N.; Kanning, W.; Ranasinghe, Roshanka

doi:10.3990/2.182

Cited by 3 publications

(4 citation statements)

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“…The majority of the Belgian coastal dunes experience decadal volume growth with an average rate of 6.2 m 3 /m/year and maximum rates of 12.3 m 3 /m/year, which is positively correlated with the aeolian sediment transport from the beach area under dominant southwesterly and westerly winds (Strypsteen, Houthuys, & Rauwoens, 2019). De Vries et al (2012) also found this decadal trend in dune growth along the neighbouring Dutch coast.…”

Section: Introductionmentioning

confidence: 67%

“…They serve as vital natural safety barriers against sea level rise and flooding events (van IJzendoorn et al, 2021; Zarnetske et al, 2015) and offer ecological and socio‐economical values (Heslenfeld et al, 2008). The development and morphodynamics of these dunes are mainly controlled by aeolian (e.g., wind energy and sediment supply), biotic (e.g., plant communities) and marine processes (e.g., wave energy, tide and littoral drift direction) (Brodie et al, 2019; Cohn et al, 2018; de Vries et al, 2012; Hesp & Smyth, 2016; Keijsers et al, 2014; Sherman & Bauer, 1993; Short & Hesp, 1982; Strypsteen, Houthuys, & Rauwoens, 2019). Field monitoring of beach and dune dynamics is required to understand the physical processes and to provide input for coastal management decisions.…”

Section: Introductionmentioning

confidence: 99%

“…In Belgium, the dune toe is conventionally identified as the intersection of the dune topography and the +6.89 m TAW level plane (Tweede Algemene Waterpassing = Belgian Ordnance Datum, with mean sea level [MSL] at about +2.5 m). In contrast, at the Dutch coast, the dune toe is located at +3 m NAP (Normaal Amsterdams Peil = Dutch Ordnance Datum, with MSL at about +0.0 m) (Bochev‐van der Burgh et al, 2011; de Vries et al, 2012; Keijsers et al, 2012; Ruessink & Jeuken, 2002). The researches by Bochev‐van der Burgh et al (2011), Smith et al (2020) and Diamantidou et al (2020) have highlighted the significance of the dune toe in coastal studies and its potential for use as an indicator of coastal change.…”

Section: Introductionmentioning

confidence: 99%

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Dune toe dynamics along the urbanised macro‐tidal coast of Belgium

Strypsteen

Dan

Verwaest

et al. 2023

Earth Surf Processes Landf

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The dynamics of the dune toe along the urbanised 65 km macro‐tidal coast of Belgium has been examined based on (bi‐)annual cross‐shore profiles derived from airborne LiDAR surveys conducted between 2000 and 2019. Results indicate that the average dune toe level is located at +5.9 m Tweede Algemene Waterpassing (TAW, Belgian Ordnance Datum), which is 1 m lower than the conventional dune toe level. However, this level is not static but rather increasing over time with an average rate of 2.3 cm/year, making it comparable with coastal areas along western Europe. Both landward retreat and seaward progradation of the dune toes are observed, with rates up to 2 m/year. The analysis revealed that dune growth is primarily facilitated by the development of incipient or embryonic dunes, new foredunes and modifications to the stoss slope of the original dune profile. Half of the sea‐fronting dunes were observed to be developed by brushwood fences, which had a positive effect on dune growth. At some locations, incipient dune development and shoreline progradation were observed seaward of old foredunes. Other dune regions were characterised by natural dune blowouts and management activities for recreational purposes. Dune toe reinforcements were implemented in the west to stabilise the dune toe and prevent erosion by waves. However, it was noted that if the adjacent beach accreted because of natural growth or periodic nourishment, incipient dunes could form in front of the reinforcement.

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Section: Introductionmentioning

confidence: 67%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Dune toe dynamics along the urbanised macro‐tidal coast of Belgium

Strypsteen

Dan

Verwaest

et al. 2023

Earth Surf Processes Landf

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“…However, it is well possible that sand is transported by wind beyond the landward border of the domain towards the dune valley and the old dune row. First estimates of the volume transported towards the dunes is the dune growth in the area over the last decades of O (30 m 3 / m / yr ) (De Vries et al [2011] Figures 3,4). Visual observations of the area as well as the profile data that extend to the old dune confirm a deposition of windblown sand of this order of magnitude in front of the old dune row.…”

Section: Discussionmentioning

confidence: 99%

Morphological developments after a beach and shoreface nourishment at Vlugtenburg beach

Schipper

Vries²,

Ranasinghe³

et al. 2012

NCK-days 2012 : Crossing Borders in Coastal Research : Jubilee Conference Proceedings

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Typically a beach is out of equilibrium after a nourishment is installed. To observe how a nourished beach behaves on the timescale of storms a monitoring campaign was set up at Vlugtenburg beach after a nourishment in the spring of 2009. Here we show a sediment budget analysis of the first 2.5 years for a coastal domain spanning 1750 m alongshore from -9 to +5 m NAP. To investigate the redistribution of nourished sand different sections of the profile are examined. Observations show that the initial response (first 6 to 12 months after construction) is large where the sediment eroded from the beach is transported offshore to form a subtidal bar. In the following period (until present) the losses in the domain are on the order of 40 m 3 per m alongshore per year. These losses are concentrated in the profile around the waterline.

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Physics of Blown Sand and Coastal Dunes

Vries¹

2013

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Dune development and aeolian transport along the Holland coas

Cited by 3 publications

References 2 publications

Dune toe dynamics along the urbanised macro‐tidal coast of Belgium

Dune toe dynamics along the urbanised macro‐tidal coast of Belgium

Morphological developments after a beach and shoreface nourishment at Vlugtenburg beach

Physics of Blown Sand and Coastal Dunes

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