Overview Of El Niño And LA Nina (for UPSC CSE)

Lesson 9 of 11 • 507 upvotes • 9:18mins

Bhumika Saini

This lesson focuses on the concepts of El Nino Southern Oscillation and La Nina. It begins with an introduction to El Nino, which is a term used to describe the unusual warming of central and eastern pacific which appears around Christmas time and La Nina, which is the opposite of El Nino as there is unusual cooling that occurs. Then the causes and consequences of both are explained through facts and illustrations. The lesson then focuses on Southern Oscillation Index and Indian Ocean Dipole and ends with an explanation of the positive and negative phases of both.