GS1 · 15 marks · 250 words

Discuss the unique geographical features of the Indian Ocean and their impact on global oceanic circulation patterns. How do these features influence the climate of the Indian subcontinent?

Answered by 8 toppers · CSE 2022–2025

OceanographyClimatologyWeather Phenomena

Syllabus: Geographical features and their location-changes in critical geographical features (including water-bodies and ice-caps) and in flora and fauna and the effects of such changes.

How toppers approached it

From 6 of the 8 answers · about 220 words · 100% drew a diagram.

Opening

  • No separate opening67%
  • A definition17%
  • A restatement17%

Body

  • Points67%
  • Points and prose33%

Close

  • No separate close50%
  • A summary33%
  • A way forward17%

The toppers’ answers

Raghav JhunjhunwalaAIR 4 · CSE 2025 · 122 wordsTheir whole copy

Opening · a restatement

The Geographical setting of Indian Ocean is rather unique and it has therefore unique implications for climate of Indian Subcontinent.

Body · points and prose

The Geographical setting of Indian Ocean is rather unique and it has therefore unique implications for climate of Indian Subcontinent.

Unique Geos features:

  1. Asymmetricity of Boundaries (as compared to Atlantic & Pacific counterparts)

  2. Enclosed nature (unlike Interconnected nature of Pacific-Atlantic)

  3. No defined source of Bottom Pool

→ Unique feature of Indian Ocean,

  1. seasonal overturning due to monsoonal influence

Impact on Global Ocean circulation

  1. Indian Ocean is a part of the larger Global Ocean conveyor Belt; thereby impacting it worldwide.

  2. Intense Heatwaves in summers carried warm pool of surface water to distant areas & caused marine Heatwaves + droughts dessicating effect.

Impact on Indian Climate

Diagram
* Sketch 1: Circulation during S-W monsoon - Map shows Indian Ocean region with a clockwise circulation loop.

Fig: circulation during S-W monsoon.

Diagram
* Sketch 2: Circulation during N-E retreating monsoon - Map shows Indian Ocean region with a counter-clockwise circulation loop.

Fig: circulation during N-E retreating monsoon.

Close

Fig: circulation during S-W monsoon. Fig: circulation during N-E retreating monsoon.

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