Cyclone Biparjoy-Types, Causes, Effects, Naming and Threat

What is Cyclone Biparjoy?

Biparjoy Cyclone is about to land on the Gujrat and Karachi coasts after a period of 25 years. Cyclone is an intense accumulation of dense air around a very low-pressure system in tropical and temperate regions known as frontogenesis.

However, Indian Ocean littoral countries mainly experience tropical cyclones like Biparjoy named by Bangladesh, Fani etc. The next cyclone in the region would be TEJ named by India.

The naming of the Cyclones (Biparjoy)?

The naming of the cyclones is a substantial and important part of the awareness and relief campaign. For the Indian Ocean region, 13 countries give 13 names leading to a combination of 169 names. The names are chosen alphabetically.

The future cyclone names after BIPARJOY (named by Bangladesh) are:

  1. India – Tej
  2. Iran – Hamoon
  3. Maldives – Midhili
  4. Myanmar –  Michaung
  5. Oman – Remal
  6. Pakistan – Asna
  7. Qatar – Dana
  8. Saudi Arabia – Fengal
  9. Srilanka – Shakhti
  10. Thailand – Montha
  11. United Arab Emirates – Senyar
  12. Yemen – Ditwah
  13. Bangladesh – Arnab

The following are the qualifications for naming cyclones:

  1. The naming of the cyclones should not be more than 8 letters.
  2. The naming of the cyclones should not have any political connotation.
  3. The name of the cyclone should be simple and lucid.

Causes of Tropical Cyclones (Biparjoy)?

  1. Warming of the sea surface – According to IMD the minimum temperature of the surface of the sea should be 27 degrees Celsius to create the low-pressure system around the eye of the cyclone.
  2.  Coriolis Force – It is a false force which is responsible for the rightward deflection of winds in the northern hemisphere and leftward deflection in the southern hemisphere.
  3. Low Wind shear – a minimum difference in vertical wind speed.
  4. Convergence of air.

Formation of Tropical Cyclones (Biparjoy)?

when an intense low-pressure system is generated in a tropical ocean, it absorbs winds from all directions. Moreover, the Coriolis force acts as a barrier in filling the low pressure. Hence, air rises adiabatically or upward.

when the air containing moisture rises it leads to cooling and release of latent heat of condensation. It further raises the heat and leads to an intense low-pressure generation at the eye of the cyclone. Thus, attracting further wind from all directions at an increased speed. Thus depending upon the speed, the cyclones like Biparjoy are categorised into the following categories:

Effects of cyclones?

  1. Storm Surges – It is the increase or rise in the sea which causes intensive flooding in the coastal areas affecting the social, economic and political landscape of the adjoining areas. It is also known as Tidal Surge or storm flood.
  2. Infrastructure Damage – Cyclones may uproot buildings, roads, houses, shelters etc. It can also damage lines of communication which are vital for immediate and remote aid which affects the reach to the areas and economic well-being.
  3. Soil Salinity – The saline water of the sea increases the salinity of the soil leading to disturbances in the lives of the farmers and crop failure. It may create an acute shortage of food and lead to a hunger crisis.
  4. Trade – As the ports in the coastal areas are closed, it affects international trade and the lives of exporters. It also affects the workers dependent upon ports.
  5. It can also cause many health hazards and waterborne diseases. It can range from malaria to cholera. Thus, leading to a health crisis in the affected region.
  6. It also affects the social lives of the people as it causes dislocation and havoc in the region. Hence, it leads to the destruction of social well-being.

Warning by IMD?

Indian metrological department (IMD) is one of the Regional Specialised Meteorological Centres (RSMCs) as notified by WMO. IMD has been given the responsibility to predict the cyclone for the Indian Ocean Littoral States for which it issued various warnings and guidelines based on colour coding. The warnings are depicted in the image below:

The Warning System of IMD

The Colour coding is the genuine and simple meaning:

Green – No Warning (Normal), Yellow – Be Updated (Keep the track), Orange/Amber – Be prepared (Severe bad weather conditions prevailing), Red – Take Action (Arrival is Confirmed).

Remedies

  1. Keep yourself and others updated about the coming of the cyclone through radio or press. This will help you to plan and protect yourself before the coming of the cyclone. Of course, Prevention is better than cure.
  2. Do not come near or dwell near a low-lying beach. This might expose you to the speedy winds of the cyclone and ultimately cause your life to death.
  3. Keep yourself in the safe shelters notified by NDMA. These are protected shelters where you will not be exposed to the effects of cyclones and will be provided immediate relief
  4. Even when winds cool down, do not go out until permitted by IMD and NDMA. As the eye of the cyclone might be intensifying for another strong cyclone

Also Read –

Indian Space Policy 2023-

India-US Summit-

Liberalised Remittances Scheme (LRS)

United Nations – Reforms and UNSC

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