What is the cause of India’s rainy and dry season?

Monsoons cause wet and dry seasons throughout much of the tropics. Monsoons are most often associated with the Indian Ocean. Monsoons always blow from cold to warm regions. The summer monsoon and the winter monsoon determine the climate for most of India and Southeast Asia.

What causes rain and dry season?

Why do the tropics only have two seasons? Weather is driven by the sun and the uneven distribution of heat between the equator and the poles. … A more noticeable change between these two times of the year is the amount of rain that falls, with a distinct wet and dry season.

Which is the main cause of Indian rainfall?

Monsoons typically occur in tropical areas. One area that monsoons impact greatly is India. In India monsoons create an entire season in which the winds reverse completely. The rainfall is a result of the convergence of wind flow from the Bay of Bengal and reverse winds from the South China Sea.

Why is India so rainy?

For most days last week, at least two low-pressure systems remained active along the east and west coasts and over central India, bringing rains over large parts of the country. … The Western Ghats, northeast and central India are known as high-rainfall receiving regions.

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What causes dry weather?

The dry weather has been caused by a high-pressure ridge of air that rises four miles above the Earth’s surface and stretches from Canada to Mexico. … As long as the ridge stays put, it blocks the air underneath – our air – from rising, cooling, and condensing to give us rain or snow.

What makes it a dry season?

The dry season is a yearly period of low rainfall in the tropics. … The dry season is characterized by its low humidity, and some watering holes and rivers drying up. Because of the lack of these watering holes, many grazing animals are forced to migrate due to the lack of water and feed to more fertile spots.

What is the cause of monsoon?

The primary cause of monsoons is the difference between annual temperature trends over land and sea. … This low pressure regions sees continuous rise of moist wind from the sea surface to the upper layers of the atmosphere, where the cooling means the air can no longer hold so much moisture resulting in precipitation.

What is the causes of winter rainfall in India?

Western Disturbances (WDs) can be called the Indian winter monsoon because they are the major source of precipitation (for both rain and snowfall) for the north Indian region during winters.

What is the cause of winter monsoon?

Winter monsoons have a dominant easterly component and a strong tendency to diverge, subside, and cause drought. Both are the result of differences in annual temperature trends over land and sea. … persistent offshore flow called the winter monsoon occurs.

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What is dry monsoon?

A dry monsoon typically occurs between October and April. Instead of coming from the oceans, the winds tend to come from drier, warmer climates such as from Mongolia and northwestern China down into India, according to National Geographic. Dry monsoons tend to be less powerful than their summer counterparts.

What are the effects of dry season?

During the dry season, humidity is very low, causing some watering holes and rivers to dry up. This lack of water (and lack of food supply) may force many grazing animals to migrate to more fertile spots.

What causes lack of rainfall?

Droughts are caused by low precipitation over an extended period of time. Atmospheric conditions such as climate change, ocean temperatures, changes in the jet stream, and changes in the local landscape are all factors that contribute to drought.