Question

during an el niño season, trade winds weaken or reverse direction along the pacific coast of south america. a reversal of these winds can impact weather throughout the pacific, and on a global scale as well. some of these impacts are shown in the map here. la niña is a reversal of the trade winds back in the original direction, but even stronger. which of these predictions is best modeled in a la niña year, as compared to an el niño event?
the atlantic ocean will see an increase in hurricanes while the pacific ocean will see a decrease in hurricane activity
both the atlantic ocean and the pacific ocean will see an increase in hurricane activity
the atlantic ocean will see a decrease in hurricanes while the pacific ocean will see an increase in hurricane activity
both the atlantic ocean and the pacific ocean will see a decrease in hurricane activity

Explanation:

During La Niña, trade winds are stronger. This leads to cooler Pacific waters. In the Pacific, cooler waters mean less hurricane - forming energy (hurricanes need warm water to form and intensify), so Pacific hurricane activity decreases. In the Atlantic, the stronger trade winds and other atmospheric conditions (like wind shear) are less favorable for suppressing hurricane formation compared to El Niño. So, Atlantic hurricane activity increases.

Answer:

The Atlantic Ocean will see an increase in hurricanes while the Pacific Ocean will see a decrease in hurricane activity.