Give Reasons why Seasonal reversal of wind direction takes place over the Indian subcontinent

 During the summer, a low-stress house is built over the Indian continent. After crossing the equator, air strikes from the high-strain area over the Indian Ocean to the low-stress area over the land in a south-westerly direction. The southwest monsoon winds are the source of this air bureaucracy. Wind moves from areas of high strain to areas of low strain. As a result, the skin wind in a high-pressure weather system is mostly outward, away from the system, and toward lower pressure. In a low-pressure device, the wind blows inward.

These winds change direction depending on the season. Consider the monsoon season in India. Winds that blow on a regular basis: land and sea breeze, mountain and valley breeze. The monsoon winds are also known as seasonal winds. During iciness, the wind shifts to the northeast. Wind direction is the direction of the wind from its source. Wind transports moisture into an environment as well as hot or cold air into local weather, influencing weather patterns. As a result, a change in the wind causes a change in weather. The wind blows from high-stress places to low-stress areas. Furthermore, temperature and strain cause the wind to change direction.

Within the environment, air hits (or flows) from areas of high air stress to areas of low air stress. The faster the air flows, the larger the differential in air strain. The major function of wind movements is to cause uneven heating on the ground in various regions. The reversal of the wind is caused by a change in pressure at various sites. It results in differential pressure. One of the major variables responsible for diverse actions is pressure.

The Indian subcontinent is located in southern Asia. Bangladesh, Bhutan, India, Maldives, Nepal, Pakistan, and Sri Lanka are all part of the Indian subcontinent. India is a portion of “Gondwanaland,” which includes the states of Madhya Pradesh, Andhra Pradesh, Telangana, and Maharashtra. The seasonal shift in wind direction happens due to significant rainfall that lasts for a few months in India; one of the key causes for this change is the coastal area that receives the most rainfall in Tamil Nadu; drought-prone areas such as Gujarat and Rajasthan also impact the wind direction. The Himalayas are a region of high pressure and low temperature, while the ocean gets low pressure, resulting in a full reversal and the formation of the southwest monsoon. The phrase “monsoon reversal” refers to winds that blow from the southwest to the northeast. El Nino is one of the key factors influencing wind direction. The El Nino effect is a constant fluctuation in the global climate that generates rains on one side of the continent and drought on the other. The impact also causes severe storms in various places of the Indian subcontinent.

Give a reason as to why the seasonal reversal of wind direction takes place over the Indian subcontinent?

• The reversal of the wind is caused by a change in pressure at various sites. It results in differential pressure. One of the major variables responsible for diverse actions is pressure. 
• The Indian subcontinent is located in southern Asia. The countries that are under the jurisdiction of India 
• Wind and pressure conditions are unusual over the Indian subcontinent.
• During the winter, a high-pressure region exists to the north of the Himalayas.
• There are low-pressure regions over the oceans in the south, thus the dry and chilly winds will blow from the north to the low-pressure zones.
• During the summer, there will be zones of low pressure across northern India and the interior of Asia.       
• As a result, the direction of wind movement will completely reverse throughout the summer.       
• Over the Southern Indian Ocean, air will begin to travel from high-pressure zones in the south-easterly direction; once crossed, these winds will continue towards the Indian subcontinent’s low-pressure areas.         
• By mid-July, the monsoon had reached the remainder of the country, including Himachal Pradesh.       
• The retreat or withdrawal of the monsoon is a slow process.      
• By early September, the monsoon had begun to leave India’s Northwestern states.       
• Monsoon retreat from the northern portion of the peninsula will be finished by mid-October.       
• The monsoon is rapidly leaving the southern section of the Peninsula.       
• By early December, the departure from the remainder of the country will be complete. 

Seasonal reversal of wind 

Monsoon refers to a seasonal reversal of wind direction that occurs throughout the year. The monsoon has ‘breaks’ in rainfall, which means there are rainy and dry times in between. Monsoon rains occur only for a few days at a time, followed by rainless periods. Seasonal wind direction reversal occurs across the Indian subcontinent because there is a high-pressure system in the north of the Himalayas and a low-pressure area over the ocean to the south in winter. As a result, cold and dry winds blow from the Himalayan area to the sea.  A low-pressure region forms across interior Asia throughout the summer due to high temperatures. In addition over northwestern India, This completely reverses the direction. The summer breeze and the arrival of the Southwest monsoon. The majority of rain falls in India during the rainy season, which lasts four months (June, July, August, and September). This is the time of year when the Southwest monsoons blow from sea to land. During the cold weather season, only the eastern coast of India receives any rainfall from the northeast trade winds.

Sample Questions 

Question 1: What are the factors influencing India’s climate?

Answer: 

The following factors influence India’s climate: latitude, altitude, pressure and wind system, distance from the sea, ocean currents, and relief characteristics. 

Question 2: Why is there a monsoon climate in India? 

Answer:  

Monsoon climate in India is due to the differential heating of land and water bodies and pressure situations.

Question 3: Why does rainfall in Northern India decrease from east to west? 

Answer:

The amount of rainfall in Northern India reduces from east to west as the humidity of the winds diminishes. The moisture-bearing winds of the Bay of Bengal branch of the southwest monsoon exhaust much of the moisture they carry with them as they go farther inland. As a result, the amount of rainfall decreases gradually from east to west.