What is monsoon?
A monsoon (meaning ‘weather’ from Arabic mausoleum) is caused by a difference in temperature between a land area and the adjacent ocean. The seasonal variation in wind direction during a year is called the monsoon.
The wet monsoon season begins when the wind blows cooler and more humid air across the oceans. The dry monsoon season is usually from October to April. The direct position of the Sun in the background of the Earth oscillates from the Tropic of Cancer to the Tropic of Capricorn. Instead of coming from the oceans, winds blow into India from dry hot climates such as Mongolia and northwestern China.
Monsoon often brings with it thoughts of a tornado similar to a hurricane or thunderstorm. But there is a difference: the monsoon is not a single storm; rather, it is the periodic change of air in an area. This change can cause heavy rainfall in the summer but can sometimes lead to drought.
What is the cause of the monsoon?
According to the National Weather Service, a monsoon (meaning “weather“ from the Arabic monsoon) produces a difference in temperature between land mass and the nearby ocean. Depending on the climate of the southwest, the sun warms the land and the ocean differently, causing the wind to play a “tug of war”, which eventually cools and Mr. Air above the ocean. At the end of the rainy season, the wind turns again.
What is the impact of the monsoon?
The monsoon is important in many parts of the world. According to the World Monsoon, in many places like India, agriculture is highly dependent on the summer monsoon. According to National Geographic, hydropower plants and import / export trade depend heavily on the monsoon season.
According to World Monsoon, during periods of light rains, crops do not grow due to drought, farm animals die of starvation, and the income and welfare of many farmers and families are significantly reduced. Sometimes less electricity is generated, so it only supplies electricity to big business or wealthy families due to the increased cost. Many farmers are importing food from other parts of the world because they cannot grow or sell their own food.
Heavy rains and landslides have washed away not only crops and homes but also humans and animals. According to the World Monsoon, diseases like cholera, dengue and malaria, as well as stomach and eye infections are more prevalent during the summer. Many of these diseases are prevalent, despite the fact that the water systems are overloaded and the water used for drinking and cleaning is not clean.
The North American monsoon system brings the onset of the fire season to the southwestern United States and northern Mexico, where power increases due to changes in pressure and temperature, according to a 2004 NOAA report. Lightning strikes thousands of people every night in some areas, causing not only fires in the area but also power outages and serious injuries.
What is a break in monsoon?
During the monsoon season, the monsoon torrent approaches the foothills of the Himalayas, causing significant rainfall deficits in most parts of the country.
However, rainfall is increasing in the valleys of the Himalayas, northeastern India, and the southern peninsula (Rayalaseema, Tamil Nadu). Such a contemporary condition is called the ‘break’ monsoon period.
What are the features of the ‘Break’ monsoon season?
i. The gorge stretches from Sriganganagar in Rajasthan to Kolkata. During the monsoon season, the gorge approaches the valley of the Himalayas or sometimes disappears.
ii. In mid-August, there is a high risk of ‘breaking’ and it will break for a long time. As a result, the northeast and south-east receive good rainfall, while the rest of the country remains dry.
iii. The rains stop in most parts of India. Heavy monsoon rains are seen near / near the foothills of the Himalayas, but not at full length at the same time.
iv. East of 85 ° E, the Himalayan region receives heavy rainfall. Accordingly, sub-Himalayan West Bengal, Sikkim, Assam and Arunachal Pradesh are likely to receive heavy rainfall. Bihar, Jharkhand and West Bengal also receive above normal rainfall during this period.
v. Peninsular India experiences thunderstorms in Rayalaseema and Tamil Nadu.
vi. Humidity levels in the northern plains are declining, surface winds are beginning to blow from the northwest, and rainfall is declining significantly.
vii. Monsoon streams move southwards as temperatures drop. When the monsoon erupts in India, the trough shows no slope to the south.
viii, The pressure gradient weakens at the surface levels of Peninsular India, while it is higher in the Gangetic plains. Usually, the reversal occurs during the four-month monsoon.
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