Regime shifts in a D3D schematized Scheldt model: recent progress
Miguel De Lucas Pardo (Deltares)
Y. Dijkstra (Deltares)
Bas van Maren (TU Delft - Environmental Fluid Mechanics, Deltares)
J Vroom (Deltares)
T van Kessel (Deltares)
Han Winterwerp (TU Delft - Environmental Fluid Mechanics, Deltares)
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Abstract
The Ems and Loire evolved into hyper-turbid estuaries in the course of the 20th
century. Winterwerp et al. (2013 a, b) argued that narrowing and deepening of these
rivers induced a regime shift towards these hyper-turbid conditions. This regime
shift was presumed to be driven by a positive feed-back between tidal
amplification, tidal asymmetry and sediment-induced drag reduction. As also the
Sea Scheldt was/is subject to narrowing and deepening, Winterwerp et al. reasoned
that also this river may be at risk to become hyper-turbid.