El Niño and La Niña

What are El Niño and La Niña?

La Niña is characterized by ______________ of the Western Pacific Ocean.

• a cooling

• a warming

• average temperatures

El Niño ___________________ the trade winds causing the warm pool to move ___________.

• weakens or reverses; west

• weakens or reverses; east

• intensifies; east

• intensifies; west

_____________ causes more rainfall in the Northwest United States and poor fishing off the coast of South America (Peru).

Why do the fisherman of Peru and South America not welcome a strong El Nino?

Which of the following is an INCORRECT statement about El Niño and La Niña?

• Both occur every 2-7 years

• El Nino is a warming and La Nina is a cooling of the Pacific Ocean

• Both occur in the Atlantic Ocean

• Neither are considered "storms"

In El Nino, rain moves east with the warm pool causing rainy/stormy weather in California and less hurricanes in the Atlantic Ocean.

• True

• False

When La Nina and hurricanes pull cold water to the surface and bring nutrient rich sediments from the seafloor, this is called ___________________.

Where does the term "El Niño" and "La Niña" come from? What does it mean?

What are some similarities between El Nino and La Nina?