Effects of hypsometry on the morphodynamic stability of single and multiple tidal inlet systems

Effects of a shallow flood shoal and friction on hydrodynamics of a multiple‐inlet system

“…The inlets and bay are small relative to the wavelength of the forcing body of water (the M2 tide), and thus it is assumed that the bay water level is spatially uniform, consistent with the observation that there is little evolution of tidal amplitude or phase across the bay (red symbols between A and F in Figures c and d). The surface areas of the bay and relatively steep‐sided inlets do not change significantly (<20%) over a tidal cycle, so the effects of hypsometry [ Speer and Aubrey , ; Stanev , 2003; Terra et al ., ; Herman , ; De Swart and Volp , ] are neglected, and and all inlet dimensions are assumed to be constant in each year. Under these assumptions, the continuity equation is where is the sea level in the bay, is time, is the time‐dependent discharge through the inlet (depth‐ and width‐integrated), is the time‐averaged cross‐sectional area of the inlet of width b I and depth h I , is the depth‐ and width‐averaged velocity, and is the surface area of the bay.…”

“…Thus, the depth of the back basin has little effect on the hydrodynamics. A topographic high (or tidal divide) in the form of a weir or semi‐permeable barrier in the middle of the back bay can restrict the flow between basins, and limit the connectivity between inlets [ Van de Kreeke et al ., ; De Swart and Volp , ]. However, it is unknown how a substantial flood shoal at the entrance to the bay affects the flow through the inlet and the balance between inlets at a multiple inlet system.…”

Tidally- and wind-driven residual circulation at the multiple-inlet system East Frisian Wadden Sea

“…by reduction or closure of a part of the basin or the inlet cross-section, may alter residual flow patterns and cause new morphodynamic states (Elias and van der Spek, 2006;Kragtwijk et al, 2004). The cross-sectional stability of tidal inlets and thus the equilibrium state of a multiple inlet system has been evaluated by linear analytical models (Van de Kreeke and Cotter, 1974;Van de Kreeke, 1990a, 1990bVan de Kreeke et al, 2008;Ridderinkhof, 1988b;De Swart and Volp, 2012). These lumped-parameter models have been extended with an assumed stability criterion allowing for stable equilibria.…”

Tidal and nontidal exchange at a subtropical inlet: Destin Inlet, Northwest Florida

“…This topic continues to attract attention in more modern investigations (e.g. van de Kreeke et al, 2008;de Swart and Volp, 2012). However, studies on water exchange at inlets are fundamental to understand transport of dissolved and suspended material, including larval transport (e.g.…”