Question

During el nino, all of the following occur except:

group of answer choices
A. the humboldt current pushes the water into the pacific ocean there is more global moisture.
B. the pacific ocean's surface temperature decreases.
C. upwelling off the coast of equador decreases.

Answer 1

This increase in Sea Surface Temperature leads to decreased upwelling off the coast of South America and alters global weather patterns. The occurrence that does not happen during an El Niño event is B. The Pacific Ocean's surface temperature decreases.

Step-by-step explanation:

El Niño is characterized by an increase in the Sea Surface Temperature (SST) of the tropical central and eastern Pacific Ocean. Typically, the Humboldt Current, also known as the Peru Current, is a cold ocean current that flows northward along the western coast of South America, bringing nutrient-rich cold waters to the surface, a process known as upwelling.

However, during El Niño events, the waters off the West coast of South America become warmer as the Humboldt Current weakens. This results in a decrease in upwelling, affecting marine life and weather patterns. Additionally, these warmer ocean temperatures lead to changes in atmospheric pressure, with high pressure in the western Pacific and low pressure in the eastern Pacific, impacting global weather and leading to more moisture and precipitation in certain regions, and drier conditions elsewhere.