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Wednesday, 25 November 2020

Nivar' to strike Tamil Nadu-Puducherry today; Why is it coming and what will happen after the storm?

Bhaskar Explaner:'Nivar' to strike Tamil Nadu-Puducherry today; Why is it coming and what will happen after the storm?

Cyclone Nivar will hit the coasts of Tamil Nadu and Puducherry, touching the Bay of Bengal, this afternoon. During this time the wind can blow at a speed of 100 to 150 km per hour. The meteorological department also warned of heavy rains in Tamil Nadu and Puducherry today and issued a red alert.

It is important to know why cyclone prevention is coming. What are the preparations of the governments? What can happen after remediation? Let's find out ...

When will the cyclone be stopped?
The effects of the cyclone have been felt in Tamil Nadu and Puducherry. The whistling wind is blowing there from now on. According to the meteorological department, the cyclone is likely to hit the coasts of Tamil Nadu and Puducherry around 5 pm on Wednesday.

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Why is cyclone prevention coming?
Former Director General of the Meteorological Department KJ Ramesh says the cyclone season lasts from October to December in the Bay of Bengal. It also has core activity in October and November. For this reason, cyclones are more likely to come in these months. In India, cyclones are most likely to occur twice a year in May-June and October-November. In May-June we had the amphan and nature storms there.

What will happen if cyclone repellent?
It happens that the wind that blows in a storm blows in two directions. First clockwise and second anti-clockwise. That is, Ramesh says the air around Puducherry and Tamil Nadu stays in an upward clockwise direction. For this reason, air comes to the shore from above the center of the storm.

This causes a whistling wind to blow and the sea water to go ashore. That is what Ramesh says that the sea water coming towards the shore is likely to penetrate into the water. Flooding conditions can also occur in low-lying areas around the coast. The storm is likely to bring rains to Tamil Nadu till November 27.

The map was released by the weather department on Monday. It shows the direction of the storm.

What are governments doing?
- Prime Minister Narendra Modi on Tuesday spoke to CM E Palanisamy of Tamil Nadu and CM Narayanasamy of Puducherry and was briefed on preparations for tackling the cyclone. With this he assured all kinds of help to both the states.

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The government has deployed 30 NDRF teams in Tamil Nadu and Puducherry. Out of them, 18 teams will be in Puducherry and 12 in Tamil Nadu. An NDRF team has 35 to 45 goers.
People living in low-lying areas around the coast have been rushed to relief centers. The relief center has all kinds of facilityes, said CM Palanisamy of Tamil Nadu. Masks and sanitizers have already been arranged.

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What is a cyclone?
Coastal areas of India and around the world are always battling cyclones. Coastal areas are areas that are on the coast. Cyclones are known by different names according to different places. Cyclones, hurricanes and typhoons are all cyclonic storms. Storms in the North Atlantic Ocean and the North-East Pacific are called hurricanes.

Typhoons are storms that occur in the northwestern Pacific Ocean. Storms in the South Pacific and Indian Ocean are called cyclones. Cyclones in India come from the South Pacific and the Indian Ocean, hence the name cyclone.

Why do cyclonic storms come?

We have learned in geography that there is air in the Earth's atmosphere. Just as there is air above the land, so there is air above the sea. Air always moves from hypertension to low pressure area. When the air heats up it becomes lighter and starts to go up.

When the sea water is warm, the air above it also starts to heat up and go up. This creates a low pressure area here. The cold air around them seems to be moving towards this low pressure area.
We have also read that the earth rotates on its axis. This causes the air to move without coming straight and move towards the circulating low pressure area. This is called a cyclone.

Simply put, a cyclone is a fast-moving air. When the air heats up, it also contains moisture. So in a cyclone, it rains along with the whistling wind. Cyclones tend to weaken when they rotate and collide with the beach. This is because the air pressure on the ground is high.

Previously cyclonic storms came occasionally and during summers. But due to climate change and global warming it also comes in winter every year. Because the cold days are getting shorter now.

How many Indians are at risk from these storms every year?
According to the Disaster Management report, the coastal length of India is 8493.85 km. The coastal border touches West Bengal, Odisha, Andhra Pradesh, Tamil Nadu and Puducherry on the east coast. On the west coast, Gujarat, Maharashtra, Goa, Karnataka, Kerala and Daman-Diu. The Andaman and Nicobar Islands are also in the Bay of Bengal and Lakshadweep in the Arabian Sea. These places are home to half the population of India. The total population of the country is 128 crores, out of which more than 60 crores live in these states.

How are cyclones named?

The countries around the Atlantic Ocean started naming cyclones in 1953. In 2004, the UN agency, the World Meteorological Organization (WMO), created a new system that is named after the country around the area where the cyclonic storm occurs.

It was followed by India, Pakistan, Bangladesh, Maldives, Myanmar, Oman, Sri Lanka and Thailand with a total of 8 countries participating in one meeting and each country nominated 8 names for the cyclonic storm. Thus these 8 countries gave a list of 64 names.

Fire, sky, lightning, water, wave, cloud, sea and wind were suggested from India. The natural storm that hit Maharashtra in June this year was named Bangladesh. When the Amphan storm that hit Bengal at the beginning of the year was named Thailand. The defense that is coming now is the name given to Iran.

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