Question

Explain why rainfall decreases eastwards in peninsular india and westwards in the northern plains

Answer 1

Answer:hi

Explanation:

Rainfall decreases from the east to the west of Northern India due to the reason for reducing the monsoon humidity of the winds. The maximum rainfall during the monsoon period but moister winds of the Bay of Bengal moves further island. Moisture wind of Bay Bengal travels through other parts of the country, these winds have least amount of moisture, which leads to decrease from rainfall . All are considered this the main reason leads to progressive decrease of rain fall from east to west.

HOPE IT HELPS YOU

Answer 2

The pattern of rainfall in India is influenced by a number of factors, including the topography of the land, the monsoon winds, and the distance from the sea. In general, rainfall decreases eastwards in peninsular India and westwards in the northern plains due to the following reasons:-

• Orographic Effect: Peninsular India is a plateau region with high elevation which acts as an orographic barrier. When the moisture-laden winds from the southwest monsoon blow over the Western Ghats, they are forced to rise up due to the high elevation of the mountain range. As the air rises, it cools down and forms clouds, leading to heavy rainfall on the windward side of the mountains (i.e. the western coast of peninsular India). However, as the winds descend on the leeward side of the mountains, they become warmer and drier, resulting in a rain shadow region on the eastern side of the mountains, where rainfall is comparatively low. Hence, rainfall decreases eastwards in peninsular India due to the orographic effect caused by the Western Ghats.

• Distance from Sea: The western coast of peninsular India is close to the Arabian Sea, which is a warm water body that provides moisture to the oncoming monsoon winds. This results in heavy rainfall along the western coast of peninsular India. However, as the monsoon winds move further inland, they lose moisture due to the distance from the sea, resulting in decreased rainfall in the interior regions of peninsular India.

• Direction of Monsoon Winds: In the northern plains, the monsoon winds blow from the southwest towards the northeast. As the winds move from west to east, they gradually lose moisture due to the distance from the Arabian Sea. Hence, the western parts of the northern plains receive more rainfall compared to the eastern parts.

• Himalayan Range: The Himalayan mountain range acts as a barrier to the monsoon winds, causing them to rise up and cool down, leading to heavy rainfall in the foothills of the Himalayas. However, as the winds move further eastwards and cross the mountain range, they become drier, resulting in decreased rainfall in the northeastern parts of India.

In summary, the decreasing trend of rainfall eastwards in peninsular India and westwards in the northern plains can be attributed to the orographic effect, distance from the sea, direction of monsoon winds, and the presence of the Himalayan mountain range.

#SPJ6