ST

Shoham TeberiwalAIR 77· 2023

Question 7GS1GS1

Why are severe and intense cyclones becoming a regular phenomenon in the Arabian Sea? Substantiate with examples.

Open scan (p.17)

Main Body

Cyclones are regions of low-pressure (severe depression) that develop into fast anti-cyclonic winds & clouds bringing huge rainfall on landfall.

Over the years, Arabian sea is witnessing more cyclones (e.g: Takutae cyclone in 2022, Biparjoy in 2023). Previously they are rarely formed in Bay of Bengal.

2Presence of marine heat waves being more prominent in Arabian sea.
3Changing density and salinity of ocean (deadly, too being factors) changes the global circulation of ocean currents and heat distribution.
4Wind distribution patterns is changing that creates favourable condition of upper divergence and lack of vertical wind shear.

IMPL IPCC has warned that with rising temperatures cyclones will be pressed in Arabian sea (one-two on average) and will become more daycycle (slow speed of momentum but high uised speed).

This requires investment in disaster task reduction (NDMA guidelines) and early warning system (e.g: Flows in Mumbai).

146 words6 paragraphs
  • Clear definition of cyclones and their meteorological properties
  • Specific contemporary examples provided (Tauktae 2022, Biparjoy 2023)
  • Recognition of changing patterns in cyclone distribution
  • Accurate geographical distinction (Arabian Sea vs Bay of Bengal)
  • Comprehensive scientific explanation of climate mechanisms
  • Reference to IPCC findings on future cyclone patterns
  • Mention of practical policy responses (NDMA guidelines)
  • Specific example of early warning system (Mumbai)
  • Discussion of ocean dynamics and heat waves

Topper

Shoham Teberiwal

AIR 772023

Subject & Paper

GS1GS1

Topic

Important Geophysical Phenomena such as earthquakes, Tsunami, Volcanic activity, cyclone etc.

Cyclones and climate change

Intensification of Arabian Sea cyclones

Writing Stats

146

Total words

6

Paragraphs

technical and forward-looking

Tone