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    • Rights: The University of Waikato Te Whare Wānanga o Waikato Published 2 May 2011 Size: 170 KB Referencing Hub media

    In deep water, a tsunami moves very fast and has a long wavelength and a small amplitude. As it enters shallower water, it slows down and the wavelength decreases. This causes the wave to become much taller.

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      Tsunami shoaling

      Many of us imagine tsunamis as tall, surf-like waves, but in the deep ocean, their amplitude is actually quite small. Tsunamis get much taller as they approach the continental shelf and ...

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      2. ARTICLE

      Tsunamis and surf – introduction

      Tsunamis are unique in their destructive power, but they share many features with other ocean waves. Learn how the two wave types differ, and how ocean waves of all kinds affect New Zealand’s ...

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      3. ARTICLE

      Waves as energy transfer

      ‘Wave’ is a common term for a number of different ways in which energy is transferred: In electromagnetic waves, energy is transferred through vibrations of electric and magnetic fields. In sound ...

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