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Ritika ChitlangiaAIR 55

Question 17Explain and differentiateGS1GS1

Briefly explain the process of tide formation and differentiate between tides and waves.

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AnswerStrengthsGapsKeywords

Introduction

Tides and waves are the main features of ocean fluid dynamics, that affect the coastal economy, climate and the biodiversity.

20 words

Main Body

Process of tide formation:

According to the equilibrium theory by Newton,

1Celestial pull of the moon, causes high tide at 0° latitude.
2To maintain the hydrostatic equilibrium of earth, centrifugal force causes also high tide at 90°.
3The centripetal force causes neap tides at 90°E and 90°W, to maintain the dynamic equilibrium.

Types of tides based on celestial position:

(i) Neap tides and spring tides are monthly tides that are caused due to position of earth, sun, and moon.

(ii) Syzygy in conjunction => The moon is in between the sun and earth => tides of highest magnitude and amplitude.

(iii) Syzygy in opposition => The earth, sun, and moon form a right angled triangle => tides of lowest amplitude and magnitude.

Difference between tides and waves:

Tides: (1) Neap tides and (2) Spring tides are monthly tides that are caused due to position of earth, sun, and moon.

3Influenced by celestial forces of moon and sun.
4Periodic and predictable phenomena.
5Helpful in navigation and fishing.

Waves: (1) Atmospheric-oceanic phenomena.

2Progressive waves that are transporting ocean waters over large distances.
3Influenced by winds and the Coriolis force.
4Unpredictable and aperiodic [Eg:] Swell waves.
5Helpful in trade and biodiversity protection.

Thus, tides and waves are important for vertical and horizontal movement of water.

— Ritika Chitlangia · AIR 55

222 words12 paragraphs

Conclusion

Thus, tides and waves are important for vertical and horizontal movement of water.

13 words

Diagram

Circular diagram showing Earth with moon positions, indicating 0°, 90°E, 90°W, high tide, and low tide positions

  • Clear application of Newton's equilibrium theory
  • Well-explained three-point mechanism
  • Diagram helps visualize tide formation
  • Correct terminology used

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Ritika Chitlangia

AIR 55

Subject & Paper

GS1GS1

Topic

Salient features of World's Physical Geography

Tides and Waves

Process of tide formation

Writing Stats

255

Total words

12

Paragraphs

Linked PYQ

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2020Briefly explain