Maritime Geography

Indian & World Geography
Constitution VerifiedUPSC Verified
Version 1Updated 7 Mar 2026

Article 297 of the Constitution of India states: "Things of value within territorial waters or continental shelf and resources of the exclusive economic zone to vest in the Union. (1) All lands, minerals and other things of value underlying the ocean within the territorial waters or the continental shelf, or the exclusive economic zone, of India shall vest in the Union and be held for the purposes…

Quick Summary

Maritime Geography is the study of oceans, seas, and coastal areas, encompassing their physical characteristics, human interactions, and strategic significance. For India, a peninsular nation with a 7,500 km coastline and island territories, this field is critical.

Key aspects include understanding ocean currents (warm like Agulhas, cold like West Australian) and their profound impact on the Indian Monsoon system, particularly the seasonally reversing Monsoon Currents.

The legal framework, primarily UNCLOS and India's Maritime Zones Act, 1976, defines crucial maritime zones: Territorial Waters (12 nm), Contiguous Zone (24 nm), and the Exclusive Economic Zone (EEZ) (200 nm), granting India sovereign rights over resources.

Major Indian ports like Mumbai, Chennai, and Kandla are vital for trade, connecting to global shipping routes and strategic chokepoints such as the Strait of Malacca. Oceanic features like the Sunda Trench and Carlsberg Ridge are important for understanding plate tectonics and seismic activity.

Marine ecosystems (coral reefs, mangroves) and fisheries geography are crucial for biodiversity and livelihoods, facing threats from pollution and climate change. Coastal geomorphology examines dynamic coastlines, while island formations (Andaman & Nicobar, Lakshadweep) extend India's strategic reach.

Maritime security challenges, from piracy to terrorism, necessitate a robust coastal security framework. The emerging 'Blue Economy' concept emphasizes sustainable ocean resource utilization for economic growth.

Ultimately, Maritime Geography provides a holistic lens to view India's strategic imperatives, economic potential, and environmental responsibilities in the vast oceanic domain.

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Key facts for quick recall:

  • UNCLOS 1982International law of the sea, ratified by India in 1995.
  • Article 297Constitutional basis for Union's rights over maritime resources.
  • Maritime Zones Act 1976Defines India's 12 nm Territorial Sea, 24 nm Contiguous Zone, 200 nm EEZ.
  • Indian Ocean Dipole (IOD)SST anomaly influencing monsoon (Positive IOD = better monsoon).
  • Major ChokepointsMalacca, Hormuz, Bab-el-Mandeb, Suez – critical for global trade.
  • India's IslandsAndaman & Nicobar (volcanic, strategic), Lakshadweep (coral, biodiversity).
  • Blue EconomySustainable ocean resource use for growth.

Vyyuha Quick Recall: Use 'MARITIME' to remember key aspects of Maritime Geography:

  • Monsoon currents: Seasonally reversing, crucial for India's climate.
  • Arabian Sea features: Higher salinity, Lakshadweep, fewer but intense cyclones.
  • Ridges and trenches: Mid-oceanic ridges (Carlsberg), deep trenches (Sunda/Java).
  • Indian Ocean importance: Geopolitical, trade routes, energy security, India's strategic backyard.
  • Territorial waters: 12 nm, full sovereignty, innocent passage.
  • Island territories: Andaman & Nicobar (volcanic, strategic), Lakshadweep (coral, biodiversity).
  • Major ports: Mumbai, Chennai, Kandla, JNPT – economic gateways.
  • EEZ boundaries: 200 nm, resource rights, UNCLOS framework.
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