Waves and Tides
T/F: Tides are caused by the rotation of the Earth
False: They are caused by the gravitational pull from the moon
T/F: Surface currents carry warm water from the poles towards the equator
False: They carry cold water from the poles towards the equator
T/F: The Global Conveyor Belt begins in the Antarctic Ocean
False: It begins in the Atlantic Ocean
T/F: El Nino is an event that has a positive global impact and occurs every year
False: It has a negative global impact and happens every 3-5 years
____ is the lowest part of a wave
trough
A circular pattern of currents in an ocean basin
Gyres
It takes a cubic meter of water _____ years to travel through the conveyor belt.
1,000
How often does an El Nino event occur?
3-5 years
Neap Tides occur during which phases of the moon?
First and Third Quarter
The Coriolis Effect causes winds in the Northern Hemisphere to flow to the _____ and to the _____ in the Southern Hemisphere.
right, left
After leaving the Antarctic, the belt splits into what two oceans? What happens to the water after leaving these two oceans?
Indian and Pacific. Water warms up and travels back toward the Atlantic
El Nino causes droughts in the _____ and flooding in the ____.
west, east
How often do spring and neap tides occur in a month?
Twice
Why do surface currents only reach a depth of 400 m?
Winds cannot be felt 400 m below the surface
Why is the Global Conveyor Belt important?
It brings nutrients and CO2 to the surface
Which continent would be most affected by an El Nino event and why?
South America because they will have a warmer climate which can effect their economy.
Explain the difference between spring and neap tides.
Spring tides have a high tidal range and neap tides have a small one. Spring tides is the highest high tide and the lowest low tide. Neap tide is the opposite
Why do global winds and ocean currents move in a circular pattern?
The Coriolis Effect
Why does the global conveyor belt "recharge" in Antarctic?
It recharges in the Antarctic because the water gets colder and sinks again
Explain how the El Niño event can impact the ocean and humans.
El Nino event effects the ocean by rising temperature levels, killing off phytoplankton which leads to the death of fish. W/O fish, the economy for fisherman is impacted.