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Currents,Waves,Tides
| Term | Definition |
|---|---|
| Currents | A large stream of moving water that flows through the ocean |
| Tsunami | Waves that form when a large volume of ocean water is suddenly moved up or down |
| Storm Surge | A local rise in sea level near the shore that is caused by strong winds from a storm |
| Neap Tide | When the Sun, Earth, and moon form a 90 angle |
| Coriolis Effect | The apparent curving of moving objects from a straight path due to Earth’s rotation |
| Upwelling | Process in which cold, nutrient-rich water from the deep ocean rises to the deep ocean rises to the surface and replaces warm surface water |
| Tidal Bore | Body of water that rushes up through a narrow bay during the rise of high tide and causes a very sudden tidal rise |
| Wavelength | Distance between two adjacent wave crests or wave troughs |
| Wave | Energy carried through water |
| Trough | The lowest point of the wave |
| Undertow | Carries sand and pieces of rock away from the shore |
| Surface Currents | Horizontal, streamlike movements of water at or near the surface of the ocean |
| Tide | Daily changes in the level of ocean water |
| Deep Currents | Streamlike movement of ocean water located far below the surface |
| Swell | Rolling waves the moves steadily across the ocean |
| Longshore Current | Water moves in a current parallel to the shoreline, close to the shore; causes the sand to the shore; causes the sand to move in a zigzag pattern |
| Tidal Range | The difference between levels of ocean water at high tide and low tide |
| Spring Tide | Tides with the largest daily tidal range and occur during the new and full moons, or every 14 days |
| Crest | The highest point of the wave |
| Wave height | Vertical distance between the crest and trough of the wave |
| High Tide | The bulges that form in the oceans because of the moon’s pull causes this |
| El Niño | Every 2 to 12 years, the South Pacific trade winds move less warm water to the western Pacific than usual |
| La Niña | Happens when surface-water temperatures in the Eastern Pacific become unusually cool |
| Low Tide | Water level is lower than average sea level |