Coastal Morphodynamics at Skallingen, SW Denmark: High Energy Conditions
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Coastal Morphodynamics at Skallingen, SW Denmark : High Energy Conditions. / Aagaard, Troels; Nielsen, Jørgen; Davidson-Arnott, Robin; Greenwood, Brian; Nielsen, Niels.
I: Geografisk Tidsskrift, Bind 98, 01.01.1998, s. 20-30.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Coastal Morphodynamics at Skallingen, SW Denmark
T2 - High Energy Conditions
AU - Aagaard, Troels
AU - Nielsen, Jørgen
AU - Davidson-Arnott, Robin
AU - Greenwood, Brian
AU - Nielsen, Niels
PY - 1998/1/1
Y1 - 1998/1/1
N2 - The present paper discusses some preliminary results from a field experiment on sediment transport and morphological change on a beach subjected to storm surge activity. The data were collected at the barrier spit of Skallingen during October/November 1996. This period was characterized by a succession of storms which resulted in high water and wave energy levels, culminating in a storm surge per se. The beach and the dune ramp eroded; however, contrary to expectations, a subtidal bar migrated onshore and the intertidal swash bar appeared to display a cyclic behaviour dependent upon strong linkages between morphology and hydrodynamics. Morphological changes in the intertidal zone were primarily accomplished by mean currents with oscillatory motions playing a subordinate role. Longshore sediment transport measured during conditions with moderately strong winds blowing alongshore, was dominated by wave-induced currents with aeolian transport being a secondary contribution. Preliminary estimates suggest that some 30-35% of the sediment eroded from the beach and dunes is retained on the barrier through onshore aeolian transport and overwash activity.
AB - The present paper discusses some preliminary results from a field experiment on sediment transport and morphological change on a beach subjected to storm surge activity. The data were collected at the barrier spit of Skallingen during October/November 1996. This period was characterized by a succession of storms which resulted in high water and wave energy levels, culminating in a storm surge per se. The beach and the dune ramp eroded; however, contrary to expectations, a subtidal bar migrated onshore and the intertidal swash bar appeared to display a cyclic behaviour dependent upon strong linkages between morphology and hydrodynamics. Morphological changes in the intertidal zone were primarily accomplished by mean currents with oscillatory motions playing a subordinate role. Longshore sediment transport measured during conditions with moderately strong winds blowing alongshore, was dominated by wave-induced currents with aeolian transport being a secondary contribution. Preliminary estimates suggest that some 30-35% of the sediment eroded from the beach and dunes is retained on the barrier through onshore aeolian transport and overwash activity.
KW - Aeolian processes
KW - Sediment budget
KW - Sediment transport
KW - Storm surge
KW - Swash bars
M3 - Journal article
AN - SCOPUS:0032453796
VL - 98
SP - 20
EP - 30
JO - Geografisk Tidsskrift
JF - Geografisk Tidsskrift
SN - 0016-7223
ER -
ID: 235847507