Chapte 13 Flashcards
Tsunami
A wave that forms when a argue volume of ocean water is suddenly moved up and down
Storm surge
A local rise in sea level near the shore that is caused by strong winds from a storm,such as a hurricane
Tides
Daily movements of ocean water that change the level of the of the oceans surface.
Tide range
The difference between levels of ocean water at high tide and low tide
Spring tides
Tides that maximum daily tidal range that occur during the new and full moons
Neap tides
Tides with minimum daily tidal range that occur during the first and third quarters of the moon
Crest
The highest point of a wave
Trough
The owes the point of a wave
Wave length
The distance between two adjacent wave crests or wave throughs
Wave height
The vertical distance between a waves crest and its trough
Swells
Rolling waves that move in a steady procession across the ocean.
Wave period
The time between the passage of two wave crest or troughs at a fixed point
Breaker
A heightened water wave that begins to tumble downward or break upon nearing the shore
Surf
A heightened water wave that begins to tumble downward or break upon nearing the shore
Whitecaps
A white,foaming wave with a very steep crest that breaks in the open ocean before the wave gets close to the shore
Salinity
A measure of the amount of dissolved salts and other solids in a given amount of liquid
Thermocline
A layer of water extending from 300m below sea leve
Continental shelf
Begins at the shoreline and slopes toward the ocean
Continental slope
Begins at the edge of the continental shelf
Continental rise
The base of the continental slope
Abyssal plain
The board flat portion of the,deep-ocean basin
Mid-ocean ridge
Mountain chains formed where tectonic plates pulled apart
Rift Valley
Forms between rift zones
Seamount
Individual mountains of volcanic material
Ocean trenches
Bottomless cracks in the deep ocean basin
Surface current
Stream lie, movements
Coriolis effect
The curving of moving objects from a straight path
Deep current
Stream like movement of ocean water far below the surface
Upwelling
Process in which cold,nutrients water from deep ocean rises to the surface and replaces warm surface
El Niño
A periodic change in the location of warm cool surfaces in the PO
Swells
Rolling waves that move steady procession across the ocean
