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Beach survey
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.
Rights: Dr Willem de Lange
Published: 2 May 2011,Updated: 2 May 2011Size: 52.15 KB
