The Influence of Tidal Prism and Vegetation on Tidal Channel Morphology: Implications for Marsh Stability

2007 ◽  
Author(s):  
Matthew L. Kirwan ◽  
A. Brad Murray
Keyword(s):  
Channel Morphology ◽  
Tidal Channel ◽  
Tidal Prism

Bio-geomorphic effects on tidal channel evolution: impact of vegetation establishment and tidal prism change

2012 ◽  
Vol 38 (2) ◽  
pp. 122-132 ◽  
Author(s):  
Wouter Vandenbruwaene ◽  
Tjeerd J. Bouma ◽  
Patrick Meire ◽  
Stijn Temmerman
Keyword(s):  
Tidal Channel ◽  
Tidal Prism ◽  
Channel Evolution ◽  
Vegetation Establishment

scholarly journals NATURAL BAR-BYPASSING OF SAND AT A TIDAL INLET

1982 ◽  
Vol 1 (18) ◽  
pp. 90
Author(s):  
Walter J. Sexton ◽  
Miles O. Hayes
Keyword(s):  
Sediment Accumulation ◽  
Tidal Inlet ◽  
Tidal Channel ◽  
Tidal Prism ◽  
Cross Sectional ◽  
Sediment Volume ◽  
Overall Stability ◽  
Ebb Tidal Delta ◽  
Channel Configuration ◽  
Wave Induced

Captain Sam's Inlet, a shallow unstable inlet, periodically migrates up to three kilometers (km) alongshore over a 30- to 40-year period. As the inlet migrates, sediment accumulates at the seaward terminus of the tidal inlet to form a wave-modified ebb-tidal delta that trends downdrift. Continued sediment accumulation on the tidal-delta shoal and subsequent lengthening of the tidal channel in a downdrift direction results in an unstable channel configuration. The ebb delta is eventually breached on its updrift side, releasing a sediment package for inlet bypassing. The sediment-bypassing process was initiated at Captain Sam's Inlet after the final landfall of Hurricane DAVID in September 1979. Initially, the newly formed updrift hurricane channel scoured 1.1 m, migrated updrift, and became the predominant tidal channel at the inlet with eventual abandonment of the prehurricane, main ebb channel. These two channels outlined a portion of the ebb-tidal delta that was freed for bypassing. The initial sediment volume contained in the bypassing shoal, above the -0.6 m (-2 ft) MSL contour, was 47,000m3. The sediment volume of the bypassing shoal did not change significantly until final attachment to Seabrook Island. This channel dominance and the wave-induced migration of the bypassing sediment package aided the bypassing of sand at the inlet. Immediately after filling of the prehurricane, main ebb channel on the delta, the downdrift beaches began accreting. The accretion continued throughout the bypassing process. The tidal prism and cross-sectional area reflected little change during the bypass, showing evidence of the system's overall stability.

scholarly journals Sediment transport at the network scale and its link to channel morphology in the braided Vjosa River system

2021 ◽  
Author(s):  
Simone Bizzi ◽  
Marco Tangi ◽  
Rafael J. P. Schmitt ◽  
John Pitlick ◽  
Hervé Piégay ◽  
...  
Keyword(s):  
Sediment Transport ◽  
River System ◽  
Channel Morphology ◽  
Network Scale
Sign in / Sign up

Export Citation Format

Share Document