Ocean Currents, Tides, and Upwelling

Front

What is Upwelling?

Back

The movement of deep, cold, nutrient-filled water to the surface of the ocean.

Front

What causes the Coriolis Effect?

Back

The rotation of the Earth on its axis.

Front

What factors affect the density of ocean water?

Back

Salt and temperature.

Front

What happens when surface currents meet continents?

Back

They are deflected (change paths).

Front

Is water in the ocean always moving?

Back

Yes, water in the ocean is always moving.

Front

Define Ocean Current.

Back

A continuous, directed movement of seawater generated by various forces acting upon it.

Front

What is the difference between surface currents and deep currents?

Back

Surface currents are driven by wind and affect the upper layer of the ocean, while deep currents are driven by density differences due to temperature and salinity.

Front

What role do tides play in ocean movement?

Back

Tides are the regular rise and fall of sea levels caused by the gravitational forces of the moon and sun, affecting ocean currents.

Front

Explain the term 'Thermohaline Circulation'.

Back

A global system of surface and deep ocean currents driven by temperature (thermo) and salinity (haline) differences.

Front

What is the significance of upwelling in marine ecosystems?

Back

Upwelling brings nutrient-rich water to the surface, supporting high productivity and diverse marine life.