DOI: 10.1029/2017JC013708
Scopus记录号: 2-s2.0-85052364689
论文题名: Storm Impact on Morphological Evolution of a Sandy Inlet
作者: Hopkins J. ; Elgar S. ; Raubenheimer B.
刊名: Journal of Geophysical Research: Oceans
ISSN: 21699275
出版年: 2018
卷: 123, 期: 8 起始页码: 5751
结束页码: 5762
语种: 英语
英文关键词: coastal morphodynamics
; Delft3D
; hurricane observations
; inlet hydrodynamics
; storm modeling
英文摘要: Observations of waves, currents, and bathymetric change in shallow water (<10-m depth) both inside and offshore of a migrating inlet with strong (2–3 m/s) tidal currents and complex nearshore bathymetry show over 2.5 m of erosion and accretion resulting from each of two hurricanes (offshore wave heights >8 m). A numerical model (Delft3D, 2DH mode) simulating waves, currents, and morphological change reproduces the observations with the inclusion of hurricane force winds and sediment transport parameters adjusted based on model-data comparisons. For simulations of short hurricanes and longer nor'easters with identical offshore total time-integrated wave energy, but different peak wave energies and storm durations, morphological change is correlated (R2 = 0.60) with storm intensity (total energy of the storm divided by the duration of the storm). Similarly, the erosion observed at the Sand Engine in the Netherlands is correlated with storm intensity. The observations and simulations suggest that the temporal distribution of energy in a storm event, as well as the total energy, impacts subsequent nearshore morphological change. Increased storm intensity enhances sediment transport in bathymetrically complex, mixed wave-and-tidal-current energy environments, as well as at other wave-dominated sandy beaches. ©2018. The Authors. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/113353
Appears in Collections: 气候减缓与适应
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作者单位: Delft University of Technology, Delft, Netherlands; Woods Hole Oceanographic Institution, Woods Hole, MA, United States
Recommended Citation:
Hopkins J.,Elgar S.,Raubenheimer B.. Storm Impact on Morphological Evolution of a Sandy Inlet[J]. Journal of Geophysical Research: Oceans,2018-01-01,123(8)