Observations and 3D hydrodynamics-based modeling of decadal-scale shoreline change along the Outer Banks, North Carolina

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• 作者：I. Safak^a ; ^{isafak@usgs.gov} ; J.H. List^a ; ^{jlist@usgs.gov} ; J.C. Warner^a ; ^{jcwarner@usgs.gov} ; N. Kumar^b ; ^nirni@uw.edu
• 关键词：Sediment transport ; Shoreline change ; Alongshore transport ; Outer Banks ; NC ; Aerial photography ; COAWST ; ROMS ; SWAN ; Three-dimensional ; Modeling ; Wave modeling ; Nearshore modeling ; Model coupling
• 刊名：Coastal Engineering
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：120
• 期：Complete
• 页码：78-92
• 全文大小：5280 K
• 卷排序：120

文摘

Hydrodynamic model consistent with data at ∼1 m/yr erosion and ∼100 K m3/yr longshore sediment flux. Model&data show higher alongshore sediment flux gradients and erosion rates along northern OBX. Including vortex force, horizontal advection and pressure gradient improves model-data comparison. Larger wave events (with highest 10% of wave height) dominate alongshore sediment flux. Large and small wave events contribute same order of magnitude to shoreline change.