کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4719138 | 1639167 | 2009 | 16 صفحه PDF | دانلود رایگان |
Measurements of the cross-shore suspended sediment flux obtained from a planar and barred beachface have been used to investigate the propensity for wave-driven onshore sediment transport during medium energy conditions. Three processes capable of transporting sediments onshore–flow velocity skewness, wave asymmetry and bed-ventilation were investigated to determine their relative importance. Onshore-directed flow accelerations under the steep front face of asymmetric waves were significantly correlated with sediment suspension, whilst the effects of flow skewness and bed-ventilation were discounted. An acceleration-modified form of the Meyer-Peter-type formula is used as initial attempt at modelling the onshore transport using a temporal filter to modify the bed shear stresses.
Journal: Marine Geology - Volume 259, Issues 1–4, 15 April 2009, Pages 86–101