Ocean waves are monitored continuously at Durban in South Africa. Detailed information is directly available in real-time, for operational purposes, to TNPA (Durban) and the eThekwini Municipality.

There are two directional Datawell Waverider buoys presently operational off Durban. The CSIR Waverider is located in 30 m water depth off the Bluff, about 1.7 km from the shore. The eThekwini Waverider is located off the mouth of the Umgeni River in 15 m water depth, about 1.5 km from the shore. The CSIR Waverider (Mk 4) also measures currents at a depth of 1 m below the surface. Measurements are processed on board, and transmitted to a shore station every half hour. The analysed data is then downloaded in near real-time to the Stellenbosch office of the CSIR, where it is stored in a database.

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