Form of water turbulence caused by abruptly changing topography of the sea-bed, configuration of coastline or changes in tidal stream characteristics.
Uhlobo lwamanzi aphithizelayo abangelwa lutshintsho lenkcazo-mhlaba yonxweme elimqengqelezi lolwandle, isimo sonxweme okanye utshintsho lwempawu zokuzala nokurhoxa kolwandle.