Saturday, 1 August 2020

Do you want to name the next storm?

We all have been familiar with the super cyclone 'AMPHAN'. Let's have a look on the creation of naming of these type of severe natural disasters.

In meteorology ,a cyclone is a large scale air mass that rotates around a strong centre of low atmospheric  pressure. It is a kind of atmospheric disturbance. Air rushes spirally towards the centre and the velocity of wind is more than 34 knots (1 knot= 1.85 Km/hr). The practice of naming cyclone(tropical and subtropical) started years ago in order to identify them easily. It creates less confusion   than to remember the storms' number or its longitude and  latitude. Cyclones,typhoons,hurricanes ,willy willy etc. all are the same, different names have been given just for happening these tropical storms in different parts of the world, e.g., cyclones in Indian Ocean, typhoons in the pacific, hurricanes in the Atlantic Ocean, willy willy in Australia.
Clement Wragge was the pioneer in naming storms. The naming for the cyclones are officially done by Tropical Cyclone  Warning Centers (total 5 centers in the world ) and Regional Specialized Meteorological  Centres(total 6 centers in the world)under the supervision of World Meteorological Organisation(WMO).They retain  their names throughout their lifetimes to facilitate the effective  communication of forecasts and storm related hazards to the general public.This is very important when multiple storms are occurring simultaneously  in the same ocean basin. Cyclones occurring in North Indian Ocean are  named by Indian Meteorological Department (IMD/RSMC, New Delhi) and in South -West Indian Ocean by Mauritious Meteorological Services. These centres can request the name to be retired or withdrawn  when the cyclone causes a great casualty, a large number of deaths and amount of  damage/impact. At early naming procedure, female names  from A to W, leaving out Q,U,X,Y and Z were used. Subsequent protests by women's liberation bodies in the 60s and 70s compelled to change the naming procedures to include males name in  1978.
The Regional Specialized Meteorological Centre (RSMC) of Tropical Cyclones in New Delhi is assigned the responsibility of issuing weather outlooks and tropical cyclone advisories for the countries in the bordering of Bay of Bengal and the Arabian Sea. This is also the agency which is responsible for naming the cyclones in this region. Member  countries are  Bangladesh, India, Maldives, Myanmar, Oman, Pakistan, Sri Lanka, Thailand.
After long deliberations among the member countries, the naming of the tropical cyclones over north Indian Ocean commenced from September 2004.  The recent Cyclone Amphan will be the last to be used in the previous list. A fresh list of names of tropical cyclones including representation from five new member countries viz., Iran, Qatar, Saudi Arabia, United Arab Emirates and Yemen (Total 13 member countries) will be used in alphabetical order  for storms after Amphan. The Panel members' names are listed alphabetically country wise, starting with Bangladesh followed by India, Maldives and so on.The general public can also suggest names to the IMD  to be included in list  and  the name should be short and readily understood when broadcasted. The suggested names can be  sent to the following address:
The Director  General of Meteorology ,
India Meteorological  Department ,
Mausam Bhawan,Lodi Road ,
New Delhi-110003.

By Jayashree Dey Sarkar.

Source:
https://en.wikipedia.org/wiki/Tropical_cyclone_naming
https://public.wmo.int/en/our-mandate/focus-areas/natural-hazards-and-disaster-risk-reduction/tropical-cyclones/Naming
Meteorology by S.R .Gadekar

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Do you want to name the next storm?

We all have been familiar with the super cyclone 'AMPHAN'. Let's have a look on the creation of naming of these type of severe ...