What are the details and effects of La Nina phenomenon in Peru's cold current area?

La Nina refers to the phenomenon that the sea surface temperature in the eastern and central equatorial Pacific continues to be abnormally cold, which is the product of the interaction between tropical ocean and atmosphere.

Impact:

(1) Impact on the east and west coasts of the Pacific Ocean near the equator: the east coast is dry and the west coast is humid, which is easy to cause floods. (2) Impact on global climate: causing climate anomalies.

Because the Peruvian cold current is located on the east coast of the Pacific Ocean, the cold current is extremely strong, and the fish that like cold water will multiply in large numbers, so that fishermen can gain something. The cooling and dehumidification effect is more intense, and the climate is extremely dry, leading to drought.