Explanations:The monsoon in India is a significant climatic phenomenon that brings substantial rainfall to the country. The monsoon season is crucial for agriculture and water resources in India. The monsoon winds typically blow from the southwest, originating from the Indian Ocean. As these winds move towards the Indian subcontinent, they encounter various geographical features that influence the distribution of rainfall.
The Western Ghats, a mountain range along the western coast of India, play a crucial role in the monsoon pattern. The Western Ghats are located on the windward side of the southwest monsoon winds. When the monsoon winds encounter the Western Ghats, they are forced to rise due to the elevation of the mountains. As the winds rise, they cool and condense, leading to the formation of clouds and precipitation. This process is known as orographic lifting, and it is responsible for the heavy rainfall that the Western Ghats receive during the monsoon season.
The Western Ghats are the first geographical feature that the monsoon winds encounter as they move towards the Indian subcontinent. Therefore, they receive the first monsoon rains. The rainfall in the Western Ghats is often the highest in the country, with some areas receiving over 2500 mm of rainfall during the monsoon season. This early and heavy rainfall is crucial for the water resources and agriculture in the region.
Other regions such as the Himalayas, Eastern Ghats, and Gangetic plains receive monsoon rains later as the winds move further inland. The Himalayas, while significant in blocking the monsoon winds and causing precipitation on their southern slopes, do not receive the first monsoon rains because they are located further north. The Eastern Ghats, located on the eastern coast, do not have the same topographical advantage as the Western Ghats for receiving the first monsoon rains. The Gangetic plains, being further inland, receive monsoon rains after the winds have moved past the Western Ghats and other geographical features.
Understanding the geographical distribution of the monsoon is essential for predicting rainfall patterns, managing water resources, and planning agricultural activities. The Western Ghats, due to their location and topography, play a critical role in the monsoon cycle and are the first to receive the monsoon rains in summer.