What is the Pacific Decadal Oscillation (PDO)? Describe various phases of it.

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Q) What is the Pacific Decadal Oscillation (PDO)? Describe various phases of it. (10 marks, 150 words)
प्रशांत दशकीय दोलन क्या है? इसके विभिन्न चरणों का वर्णन कीजिए।

Demand of question: Candidates need to be aware of different geophysical phenomena in detail. This question tests the detailed understanding of the Pacific Decadal Oscillation.

Directive Keyword:

Describe– When you’re asked to describe something, it means you need to write a thorough explanation that covers the question’s details, including the “how” and “why” aspects.

Structure of the Answer:

Introduction: Give a current context as to why this was in the news recently.

Body:

Firstly, explain what Pacific Decadal Oscillation is.
Next, explain its various phases in detail.
Remember, to give separate subheadings for each of the parts.

Conclusion: Highlight the importance of keeping track of such geophysical phenomena and what the world and India is doing in this respect.

Part of the Syllabus: Paper-1 Geography (Important Geophysical Phenomena such as earthquakes, Tsunami, Volcanic activity, cyclone etc., 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)