Field observations of the spatial patterns of nearshore currents in the lee of a coastal groyne were investigated using both Lagrangian and Eulerian techniques at both Cottesloe Beach and City Beach in Western Australia. Spatial patterns of the currents in the lee of each structure were obtained using GPS surf zone drifters and indicated that a persistent circulation cell was established in the lee of coastal structures, with a longshore current directed towards the structure, generating a rip current along the face of the groyne as it was deflected offshore. A convergence zone between the offshore directed momentum of this rip current and the onshore directed momentum of the incoming waves was present at the offshore extent of this cell circulation.
|Title of host publication||Coastal Engineering 2008|
|Subtitle of host publication||Proceedings of the Thirty-First International Conference|
|Editors||Jane McKee Smith|
|Place of Publication||Singapore|
|Publisher||World Scientific Publishing|
|Number of pages||13|
|Publication status||Published - 2008|