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  • Scientists undertaking a beach profile survey in 1970s, NZ
    Rights: Dr Willem de Lange Published 2 May 2011 Size: 52 KB Referencing Hub media

    Undertaking a beach profile survey to analyse changing sand volumes along the New Zealand coast. Surveys in the 1970s used a jet boat to echo-sound the offshore profile and an instrument onshore to measure the boat’s position. Willem is in the bow of the boat, monitoring the echo sounder.

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