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Indian Ocean Geography 2018

SOURCE: 2018 CIA WORLD FACTBOOK AND OTHER SOURCES











Indian Ocean Geography 2018
SOURCE: 2018 CIA WORLD FACTBOOK AND OTHER SOURCES


Page last updated on February 28, 2018

Location:
body of water between Africa, the Southern Ocean, Asia, and Australia

Geographic coordinates:
20 00 S, 80 00 E

Map references:
Political Map of the World

Area:
total: 68.556 million sq km
[see also: Area - total country ranks ]
note: includes Andaman Sea, Arabian Sea, Bay of Bengal, Flores Sea, Great Australian Bight, Gulf of Aden, Gulf of Oman, Java Sea, Mozambique Channel, Persian Gulf, Red Sea, Savu Sea, Strait of Malacca, Timor Sea, and other tributary water bodies

Area - comparative:
almost 7 times the size of the US

Coastline:
66,526 km
[see also: Coastline country ranks ]

Climate:
northeast monsoon (December to April), southwest monsoon (June to October); tropical cyclones occur during May/June and October/November in the northern Indian Ocean and January/February in the southern Indian Ocean

Terrain:
surface dominated by a major gyre (broad, circular system of currents) in the southern Indian Ocean and a unique reversal of surface currents in the northern Indian Ocean; ocean floor is dominated by the Mid-Indian Ocean Ridge and subdivided by the Southeast Indian Ocean Ridge, Southwest Indian Ocean Ridge, and Ninetyeast Ridge
major surface currents: the counterclockwise Indian Ocean Gyre comprised of the warm Agulhas and East Madagascar Currents in the west, the South Indian Current in the south, the cold West Australian Current in the east, and the South Equatorial Current in the north; a distinctive annual reversal of surface currents occurs in the northern Indian Ocean; low atmospheric pressure over southwest Asia from hot, rising, summer air results in the southwest monsoon and southwest-to-northeast winds and clockwise currents, while high pressure over northern Asia from cold, falling, winter air results in the northeast monsoon and northeast-to-southwest winds and counterclockwise currents

Elevation:
mean depth: -3,741 m
[see also: Elevation - mean depth country ranks ]
elevation extremes: lowest point: Java Trench -7,258 m highest point: sea level 0 m

Natural resources:
oil and gas fields, fish, shrimp, sand and gravel aggregates, placer deposits, polymetallic nodules

Natural hazards:
occasional icebergs pose navigational hazard in southern reaches

Environment - current issues:
endangered marine species include the dugong, seals, turtles, and whales; oil pollution in the Arabian Sea, Persian Gulf, and Red Sea

Geography - note:
major chokepoints include Bab el Mandeb, Strait of Hormuz, Strait of Malacca, southern access to the Suez Canal, and the Lombok Strait

NOTE: 1) The information regarding Indian Ocean on this page is re-published from the 2018 World Fact Book of the United States Central Intelligence Agency. No claims are made regarding the accuracy of Indian Ocean Geography 2018 information contained here. All suggestions for corrections of any errors about Indian Ocean Geography 2018 should be addressed to the CIA.
2) The rank that you see is the CIA reported rank, which may habe the following issues:
  a) The assign increasing rank number, alphabetically for countries with the same value of the ranked item, whereas we assign them the same rank.
  b) The CIA sometimes assignes counterintuitive ranks. For example, it assigns unemployment rates in increasing order, whereas we rank them in decreasing order






This page was last modified 28-Feb-18
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