Ocean Currents | Basics, Origin & Classification | Ekman Transport | UPSC Geography Optional

Ocean currents explained (Part 1): basics, nature, origin and classification of ocean currents.
Covers wind-driven currents, Coriolis force, thermohaline circulation, basin control and gyres.

Ocean Currents | Basics, Origin & Classification | Ekman Transport | UPSC Geography Optional


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Hello and welcome to Vimochana Edu.

This lecture is Part 1 of the Ocean Currents module in Oceanography.
The focus of this video is to build a strong conceptual foundation before moving to current systems of different oceans.
✅ Topics covered in this lecture:
🔹 Basics of Ocean Currents
• Meaning, nature and general characteristics of ocean currents
🔹 Origin & Generation of Ocean Currents
• Wind-driven theory of ocean currents
• Role of Earth’s rotation (Coriolis force)
• Thermohaline theory of ocean circulation
• Role of continental configuration and ocean basins (basin control theory)
• Sea-level gradient and pressure differences
• Sverdrup–Stommel–Arons theory (conceptual understanding)
🔹 Classification of Ocean Currents
• Based on depth
• Based on temperature
• Based on periodicity
🔹 Global Perspective
• Relationship between global wind system and ocean currents
• Introduction to ocean gyres
📌 This lecture provides the base required to understand ocean-wise currents in the next videos.

🎯 Best for: UPSC Geography Optional • Oceanography • Concept-building + Answer Writing


✨ This lecture is NOT integrated with GS/Prelims – it is purely Geography Optional level, with thinkers, keywords, diagrams, and exam-ready notes.

📌 What you’ll gain:
Clear concepts with flowcharts, maps, and keywords
Integration of Paper-1 with Paper-2
Content you can directly reproduce in the Mains exam


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👉 Watch the full module here:

Previous Video :-    • Ocean Tides | Types, Tidal Phenomena & Sig...  

Oceanography Geography module :    • MODULE 4 : Oceanography  

Population Geography module -    • Module 7 - Population Geography  

Perspective Module:    • MODULE 6 : Perspectives in human Geography  

Climatology Module – climatology :    • MODULE 3 : CLIMATOLOGY  

Geomorphology Module :    • Module 2: Geomorphology | Geography option...  


UPSC CSE 2026 Focus
This lecture is fully aligned with UPSC Mains (Geography Optional) syllabus. No integration with GS/Prelims—only pure optional material, exam notes, and past year questions.

🎯 Perfect for:
UPSC CSE aspirants with Geography Optional
Students preparing Oceanography module in detail

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