RC

Ritika ChitlangiaAIR 55

Question 16GS1GS1

Describe the various factors that influence ocean currents and discuss their multi-dimensional impact.

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AnswerStrengthsGapsKeywords

Introduction

Ocean currents are the horizontal displacement of water, in fairly defined directions, triggered by wind movements.

16 words

Main Body

Factors influencing ocean currents:

1Winds => 90% of the ocean currents follow the prevailing wind direction. [Eg:] Trade winds dictate the North and South Atlantic current.
2Pressure differences => creates a slope for ocean currents from low pressure to high pressure.
3Salinity differences => slope from low salinity to high salinity.
4Temperature differences => slope from high to low.
5Coriolis force => deflects the ocean currents to the right in N.H and left in S.H.
6Coastal morphology => Iceland and seta Peruvilla.

Multi-dimensional impact:

1Climate of the coastal areas [Eg:] Alaskan Warm current keeps Alaska ice-free during winter.
2Creation of the fishing belts of the world. [Eg:] Sargasso Sea => richest fishing bank near Newfoundland.
3Heat redistribution from the equator towards the poles.
4Movement of the vertical ocean layers => directly affects lead to mixing of oxygen, nutrients etc.
5Economic impact [Eg:] Cold upwelling zones => fishing grounds near Peru.

Thus, climate change has impacted the ocean current movement, which can lead to disastrous impacts on the human society and economy.

182 words13 paragraphs

Conclusion

Thus, climate change has impacted the ocean current movement, which can lead to disastrous impacts on the human society and economy.

21 words

Diagram

Map showing ocean currents with labels including Labrador, N.Atlantic, Gulfstream, N.Pacific, E.Equine, E.equine, Canary, Brazil, Peru, Benguela, Australian, WWD, Agulhas, WWD

  • Comprehensive coverage of all six major factors
  • Good use of examples like trade winds, Atlantic current
  • Diagram provided showing global ocean current patterns
  • Clear labeling of hemispheric Coriolis effects

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Page 37

Topper

Ritika Chitlangia

AIR 55

Subject & Paper

GS1GS1

Topic

Salient features of World's Physical Geography

Ocean Currents

Factors influencing ocean currents

Writing Stats

219

Total words

13

Paragraphs