The intensity of severe cyclonic storms in the North Indian Ocean region has shown an increasing trend in the past four decades which have significant socio economic impact. Explain.
Answer: Tropical cyclones are violent storms with rapid inward air circulation around a low-pressure area. The intensity of severe cyclonic storms in the North Indian Ocean region has shown an increasing trend in the past four decades e.g. Tauktae, Asani, etc.
Tropical cyclones originate and intensify over warm tropical oceans. North Indian Ocean region provides ideal conditions for the formation and intensification of cyclonic storms which are:
- Large sea surface with temperature higher than 27° C
- Weak vertical wind shear which allows the storm clouds to rise vertically to high level
- Presence of Coriolis force
- A pre-existing weak low-pressure area
- Upper divergence above the ....
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