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Heard Island experiment
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Heard Island experiment

oceanography

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work of Monk

  • In Walter Munk

    This culminated in the 1991 Heard Island experiment, in which sound signals were transmitted from instruments 150 metres (492 feet) below the ocean’s surface to receivers around the world. The project used the speed at which the signals transmitted to measure the temperature of the water. He cowrote the definitive…

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