Surface Currents
Surface currents are powered by?
Wind
What is formed when more dense seawater sinks under less dense seawater?
Density currents
Oceans originally formed from rain that fell and collected in bowl like features called...
Basins
Water particles of ocean waves waves move in what way?
In circles
Tides are caused by a giant wave produced by...
Gravity
The Coriolis effect is caused by..?
Earth's rotation
The density of seawater is affected by temperature and?
Salinity
Salt can be removed from seawater by a process called?
Desalination
The lowest point of a wave is called a?
trough
The earth moves under the tidal bulge to form what?
High and low tides
In relation to the Earth's crust, surface currents move in what direction?
Parallel
Density currents spread along the bottom of the ocean at what speeds?
Slow
The change of current with depth is called what?
Ekman spiral
The horizontal distance between the crests or troughs of 2 adjacent waves
Wavelength
The highest tides are called?
Spring tides
The temperature of currents on the west coast is..
cold
The density of seawater can be increased by decreasing what?
temperature
Dense, cold water rising to the surfacwe
Upwelling
In a wave, only these particles move forward
Energy
During neap tides, high tides are..
lower
Results from waves breaking at an angle to the shore
Longshore current
Most of the currents that are south of the equator move in what direction?
Counter clockwise
As a water wave approaches shore, its wave height does what?
Increases
When the Sun, Moon, and Earth form a right angle, we have what kind of tides?
Neap