CK12 Earth Science

Figure 14.7: Ocean waves transfer energy through the water over great distances. ( 34 ) Waves Awaveis a disturbance that transfe ...

particlesintheoceanarenotsignificantlymovedbywaves; althoughtheyarebobbledaround by the waves, the particles tend to stay where ...

Figure 14.9: An undersea earthquake caused the Boxing Day Tsunami in 2004 which devas- tated Indonesia, Sri Lanka, India, Thaila ...

pulled higher in the areas of the two high tides, there is less water in between the two high tides. These areas are thelow tide ...

Spring tide are tides with the greatest tidal range. Despite their name, spring tides don’t just occur in the spring; they occur ...

Figure 14.14: Neap tides occur when the Earth, the Sun, and the Moon form a right angle, at first and last quarters for the Moon ...

Surface Currents Wind that blows over the ocean water creates waves. It also createssurface currents, which are horizontal strea ...

Figure 14.15: The Coriolis Effect causes winds and currents to form circular patterns. The direction that they spin depend on th ...

Effect on Global Climate Surface currents play a large role in determining climate. These currents bring warm water from the equ ...

Figure 14.17: Thermohaline currents are created by differences in density due to temperature (thermo) and salinity (haline). The ...

Upwelling As you have seen, water that has greater density usually sinks to the bottom. However, in the right conditions, this p ...

Neap tides are tides of lower than normal tidal range that occur at first and last quarter moons, when the Moon is at right ang ...

Vocabulary amplitude The vertical height of a wave, measured from trough to crest. Coriolis effect the apparent deflection of a ...

Points to Consider What is the bottom of the ocean like? How is the seafloor studied? How does the ocean floor contribute to th ...

14.3 The Seafloor. Lesson Objectives Describe the obstacles to studying the seafloor and methods for doing so. Describe the fea ...

Figure 14.20: Dolphins and whales use echolocation, a natural sonar system, to navigate the ocean. ( 15 ) for every 10 meters of ...

Figure 14.21: Submarines are built to withstand great pressure under the sea, up to 680 atmospheres of pressure (10,000 pounds p ...

Figure 14.22: Alvin allows for a nine hour dive for up to two people and a pilot. It was commissioned in the 1960’s. ( 8 ) ...

Figure 14.23: Remotely-operated vehicles like this one allow scientists to study the seafloor. ( 30 ) Figure 14.24: The seafloor ...

Living Resources Although most fish are caught as they swim in the open waters of the ocean, bottom trawlingis a method of fishi ...