Rip Currents

Rip currents are strong, narrow seaward flowing currents that are common features on any beach characterised by waves breaking across a surf zone. They are the primary hazard for swimmers and bathers on surf beaches globally. In Australia rips contribute to an average of 21 drowning fatalities per year. Even more rip-related drownings occur each year in other countries such as the United States  and Costa Rica. Rips are also responsible for the majority of rescues conducted by lifeguards and lifesavers on surf beaches and there is no evidence to suggest that that number of rip current related drownings and rescues is decreasing over the long term. 

Scientifically, the recent use of Lagrangian GPS drifters has greatly improved our understanding of rip current circulation, flow behaviour and types, but less is known about beachgoer understanding and behaviour in regards to the rip current hazard. Previous work by researchers at UNSW used Lagrangian drifters in combination with GPS-equipped swimmers to test rip current escape strategies.

More recently, a number of survey-based studies have shown that while recognition of rip currents by beachgoers is poor, it is possible to improve public understanding of the hazard through dedicated education campaigns. However, more research is needed to examine beach safety and rip current knowledge of prioritised coastal user groups, both in Australia, and globally.

To learn more about rips and how you can keep youself safe at the beach, check out www.ripcurrentsafety.com