Royal Netherlands Institute for Sea Research
[email protected] 1
Case study Netherlands
Case site: the Netherlands
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Living in the Dutch delta...
Zagwijn
Living in the Dutch delta ... Storm surge 1953
inundating 150 000 ha of land causing the death of 1835 people
Anp archief
Knmi.nl
Living in the Dutch delta ... Delta works
5Slide T. Ysebaert
6http://www.sev.nl/
Today “designed” flooding risks
Delta area, Netherlands
7Slide From T. Ysebaert / RWS?
Delta area, Netherlands
Van der Spek
Westerschelde, a typical funnel-shaped estuary
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Westerschelde: dredging
Maintenance (1900 – 1970) 1st deepening => 1970 - 1975 Maintenance (1975 – 1997) 2nd deepening => 1997 - 2001 Maintenance (2001-2009) 3rd deepening => 2010-2011 Maintenance (present)
Geoplein.nl
Current velocity
Pethick, 1984
mud mud, sand
sand
CHANNEL
Westerschelde: cross-shore gradients
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Low marsh – pioneer (Spartina anglica)
Middle marsh (Atriplex portulacoides)
Middle marsh (Puccinellia)
False colour aerial photographs
HoofdplaatThomaespolder
Paulinapolder
Zuidgors
Hellegatpolder
Biezelingsche Ham
ZimmermanpolderBaarland
Westerschelde
Terneuzen
Vlissingen Yerseke
Van der Wal, Wielemaker-van den Dool, Herman, Est. Coast. Shelf Sci. 2008
Westerschelde: saltmarsh dynamics
Westerschelde: saltmarsh dynamics Paulina
Van der Wal et al., 2008 ECSS
Westerschelde: setup transect EU FAST
Westerschelde: saltmarsh dynamics Paulina
Westerschelde: Hellegatpolder
Royal Netherlands Institute for Sea Research
[email protected] 19
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