TY CONF TI MAPPING TIDAL CURRENTS AND RESIDUAL CURRENTS BY USE OF COASTAL ACOUSTIC TOMOGRAPHY KW tidal current structures KW residual currents KW M4 and M6 generation mechanisms KW coastal acoustic tomography JO XXVI International Shore Conference "Managing risks to coastal regions and communities in a changing world" AU Zhu, X.. AU Zhu, Z.. AU Guo, X.. PY 2024 PB Academus Publishing