Examine why tropical cyclones are named the way they are named around the world. Also examine the nature and causes of origin of cyclones in the Arabian Sea.

Tropical cyclones are developed in the regions lying between tropic of cancer and Capricorn.They are characterized by sudden increase in air temperature and wind velocity (wind velocity exceed 63 kph), decrease air pressure, emergence cirrus clouds in the sky, heavy rainfall, high waves in ocean, clouds are associated with thunder and lightning .

Cyclones are named-
1)to avoid confusion as they last for more than 7 days and more than one cyclone can developed in same basin.
2)easy communication between forecaster and general public.

REASONS:-
a)INITIAL DEVELOPMENT

-A warm sea water(26 degree centigrade) which provide abundant water vapor

-High relative humidity which helps condensation of water vapor into water droplets and clouds and release heat energy
-Atmospheric instability which helps in formation clouds with condensation of rising rising air over ocean
-Location 4-5 latitude degree from equator allows influence the forces due to earth rotation to take effect in reducing cyclonic wind circulation around low pressure

b)Mature tropical cyclone--spiral pattern of highly turbulent cumulus clouds which are accompanied by winds up to 250 kmph.

c)decay process--if central low pressure is weaken due to source of moist air being abruptly cut off the cyclone start decaying.