Question

Explain any two climatic changes that take place in and around the Indian sub-continent that are responsible for the arrival of the south-west-monsoons.

Answer 1

1. Intense Heating of the Landmass: During summer, the northern plains and the Thar Desert heat up quickly, creating a low-pressure area over northwestern India. This low pressure attracts moist winds from the Indian Ocean.
2. Shift of the ITCZ (Inter-Tropical Convergence Zone): The ITCZ moves northward towards the Indian subcontinent during summer. This shift pulls the southeast trade winds from the Southern Hemisphere, which cross the equator, become southwest winds, and bring heavy rainfall to India.