SHORE-PARALLEL FLOWS IN A BARRED NEARSHORE

[摘要] A field experiment to measure the horizontal and vertical structure of shore-parallel, nearshore currents was conducted at Wendake Beach, Georgian Bay, Canada, in 1980. Waves and currents were measured with continuous resistance wire wave staffs and bi-directional, electromagnetic current meters, respectively. Substantial variations from theoretical horizontal velocity profiles were found as an influence of small amplitude nearshore bars. Data smoothing resulted in a Longuet- Higgins type mixing parameter estimate of P=0.18. Vertical velocity profiles analysis suggests that an estimate of mean, surf zone roughness length is of the order of lxl0-3m.

[学科分类] 建筑学

[关键词] barred nearshore;shore parallel flos