Autonomous underwater gliders

Autonomous underwater vehicle – a robot!Flies by changing its buoyancy – takes on water, becomes heavy and sinks – wings turn vertical motion into forward motion – expels water, becomes light and rises – flies saw tooth pattern through the ocean – from the surface to 3 m off bottom (200 m max)

34p thachthaoxanh 24-08-2011 53 5   Download

Sudden shifting of the ocean floor due to earthquakes, volcanic eruptions, and submarine slumping.open ocean: short heights, long wavelengths (100 km), and long periods 400-500 mph!!! shallow water: their length shortens and their height increases dramatically...

33p thachthaoxanh 24-08-2011 62 5   Download

An ocean wave is an undulation of the sea surface. Wave crest,Wave trough,Wave height,Wave lengt,Wave period Progressive waves move across the sea surface.,Standing waves oscillate about a fixed point. Wind velocity : Wind duration, Fetch (distance over which wind blows), Simply put, wave size increases as all these factors increase.

30p thachthaoxanh 24-08-2011 59 5   Download