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BK3/Unit.3/Ch.3 Voc.
Question | Answer |
---|---|
Salinity | The measure of the amount of water dissolved salt contained in water. |
Density | Mass divided by volume; m/v |
Continental Shelf | Extends from the shore line out to the continental slope. |
Sonar | A system that uses underwater sound waves to measure distance and locate objects. |
Ocean Current | A mass of moving ocean water. |
Downwelling | The movement of water from the surface to greater depths. |
Upwelling | The vertical movement of the deep water up to the surface. |
El Nino | Disturbance of wind patterns and ocean currents in the Pacific Ocean. |
Longshore Current | Overall direction of waves that strike the shore at an angle. |
Rip current | narrow stream of water that breaks through sandbars and drains rapidly back into deeper waters. |
tide | periodic rising and falling of the water level of the ocean. |
tidal range | the difference in height between high tide and low tide. |
spring tide | extra high tidal bulge during new and full moon. |
neap tide | extra-low tide occurring during the first and third quarter of the moon phases. |