(IGP) GS Paper 1 – India & World Geography – “Antarctica”

Integrated Guidance Programme of General Studies for IAS

Subject – India & World Geography
Chapter : Antarctica


  • Size : Fifth largest continent.
  • Situation : Antarctica, centred on the South Pole,
    is situated 960 km from South America, 2,700 km from Australia and 4,000 km
    from South Africa. It is surrounded by Southern or Antarctic Ocean, formed
    the southern waters of Pacific, Indian and Atlantic Ocean.

  • Shape : Except for the deep indentations of the Ross and Weddell
    Seas and the projecting peninsula, the continent is roughly circular in
  • Climate : World’s coldest continent and remains
    covered with very thick layer of ice, therefore, known as ‘white continent’.
    Precipitation, in the form of snow (equal to 5 cm of rain) making
    Antarctica, one of the earth’s great desert.

  • The Land : Antarctica Continent is the highest of
    all the continents, averaging 6000 feet in elevation. Ice sheet covers 95%
    of Antarctica, and exposed areas are rugges and mountainous. The principal
    mountain chain is Trans Antarctic which divides the continent in almost two
    equal parts. Ellsworth Mountain, fringing the coast, contains Antarctica’s
    highest peak, the Vinson Massif (5,140m). Mt. Erebus, the only active
    volcano, is located on the Ross Island.

For Detail Description,
Analysis and More MCQs of the Chapter Buy this Study Notes:

Some Notable Facts:

  • The only continent with no permanent population.
  • It is linked to Tierra del Feugo by the submarine Scotia Ridge.
  • It is a great scientific laboratory hence also called ‘continent for
  • There are valuable minerals like iron, copper, coal, petroleum in
    Antarctica but high cost involved makes exploitation of these resources
  • Expedited by many, and first expedition by India in 1981-82 near Queen
    Maud region of Antarctica, and named it as Dakshin Gangotri (Mount Indira).
  • Other countries have base camps to carry out research throughout the
  • South Magnetic Pole is located to the southeast of Greater Antarctica in
    the Indian Ocean.
  • World’s largest glacier—Lambert is located here.
  • The sheer weight of the ice has warped the continent downward so that
    much of the land of Antarctica lies below sea level.
  • In 1985 at the South Polar Region an alarming discovery was made by
    British Antarctic Survey. An ozone hole (formed due to ozone depletion) was
    found over the polar atmosphere.

Arctic Ocean Region:

  • It includes the Arctic Ocean and the North Polar Seas.

Arctic Ocean

Area : 12.9 million sq. km

North Polar Seas

Area : 14.8 million sq. km.

  • Lands adjacent to the Arctic Ocean belong to Alaska, Canada, Greenland,
    Norway and CIS.

Characteristics of the Region:

  • Stationary polar ice. Polar ice is about 3 m thick and is located
    directly over the North Pole.
  • Strong winds, high atmospheric pressure prevails.
  • Absence of vegetation (only mosses and lichens at very few places may be
  • The coldest place in the northern hemisphere is not the North Pole
    (because of moderating influence of Arctic Ocean) but 2,414 km south fo
    North Pole (Siberian town of Verkhoyansk).
  • Polar Bear is the best known animal in the Arctic Region.
  • Huge Alaskan oil reserves is the most important resources of the region.
  • The Arctic fringe and offshore islands are part of CIS territory and it
    is a very sensitive are with aircraft and missile detection devices. Now the
    region is becoming new home for many Russian scientists.

For Detail Description,
Analysis and More MCQs of the Chapter Buy this Study Notes:

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