El Nino and La Nina and Atmospheric and Ocean Circulation

Which of the following is this image?

• El Nino Southern Oscillation

• La Nina

Which of the following is this image?

• El Nino Southern Oscillation

• La Nina

El Nino has a ____ wind direction.

• low

• westerly

• easterly

• high

La Nina has a ____ wind direction.

• high

• low

• easterly

• westerly

During El Nino, the high pressure system is over ____.

• Australia

• South America

• The ocean

During La Nina, the high pressure system is over ____.

• Australia

• South America

• The ocean

There is weak upwelling on the South American coast during El Nino.

• True

• False

It is cooler in Australia during La Nina.

• True

• False

Answer explanation

It is warmer in Australia during La Nina.

Which of the following are true for El Nino?

• El Nino develops in summer.

• America has a higher rainfall in El Nino

• Low pressure = upward moving rain

• Australia has hot, dry conditions during El Nino.

During La Nina, Africa is in drought conditions which means hotter days and cooler nights.

• True

• False