Indian Ocean

IndianIndoSouthern Indian OceanIndian SeaWestern Indian OceanSouth Indian OceanIndian OceansNorth Indian OceanEastern Indian OceanNorth Indian Ocean cyclone
The Indian Ocean is the third-largest of the world's oceanic divisions, covering 70560000 km2 or 19.8% of the water on the Earth's surface.wikipedia
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Africa

African continentAfricanAfrican politics
It is bounded by Asia to the north, Africa to the west, and Australia to the east.
The continent is surrounded by the Mediterranean Sea to the north, the Isthmus of Suez and the Red Sea to the northeast, the Indian Ocean to the southeast and the Atlantic Ocean to the west.

Ocean

marineoceansmaritime
The Indian Ocean is the third-largest of the world's oceanic divisions, covering 70560000 km2 or 19.8% of the water on the Earth's surface.
These are, in descending order by area, the Pacific, Atlantic, Indian, Southern (Antarctic), and Arctic Oceans.

Southern Ocean

Antarctic OceanSouthernSouth Seas
To the south it is bounded by the Southern Ocean or Antarctica, depending on the definition in use. The borders of the Indian Ocean, as delineated by the International Hydrographic Organization in 1953 included the Southern Ocean but not the marginal seas along the northern rim, but in 2000 the IHO delimited the Southern Ocean separately, which removed waters south of 60°S from the Indian Ocean, but included the northern marginal seas.
As such, it is regarded as the second-smallest of the five principal oceanic divisions: smaller than the Pacific, Atlantic, and Indian Oceans but larger than the Arctic Ocean.

Atlantic Ocean

AtlanticNorth AtlanticNorth Atlantic Ocean
Meridionally, the Indian Ocean is delimited from the Atlantic Ocean by the 20° east meridian, running south from Cape Agulhas, and from the Pacific Ocean by the meridian of 146°49'E, running south from the southernmost point of Tasmania.
As one component of the interconnected World Ocean, it is connected in the north to the Arctic Ocean, to the Pacific Ocean in the southwest, the Indian Ocean in the southeast, and the Southern Ocean in the south (other definitions describe the Atlantic as extending southward to Antarctica).

Red Sea

Redthe Red SeaErythraean Sea
The Indian Ocean covers 70560000 km2, including the Red Sea and the Persian Gulf but excluding the Southern Ocean, or 19.5% of the world's oceans; its volume is 264000000 km3 or 19.8% of the world's oceans' volume; it has an average depth of 3741 m and a maximum depth of 7906 m. On the northern coast of the Arabian Sea, Gulf of Aden is connected to the Red Sea by the strait of Bab-el-Mandeb.
The Red Sea is a seawater inlet of the Indian Ocean, lying between Africa and Asia.

Persian Gulf

GulfGulf regionPersian Gulf region
The northernmost extent of the Indian Ocean (including marginal seas) is approximately 30° north in the Persian Gulf.
The body of water is an extension of the Indian Ocean (Gulf of Oman) through the Strait of Hormuz and lies between Iran to the northeast and the Arabian Peninsula to the southwest.

Zambezi

Zambezi RiverZambesiZambezi Valley
The largest rivers are (order 5) the Zambezi, Ganges-Brahmaputra, Indus, Jubba, and Murray rivers and (order 4) the Shatt al-Arab, Wadi Ad Dawasir (a dried out river system on the Arabian Peninsula) and Limpopo rivers.
The Zambezi (also spelled Zambeze and Zambesi) is the fourth-longest river in Africa, the longest east-flowing river in Africa and the largest flowing into the Indian Ocean from Africa.

Borders of the oceans

Atlantic Oceanborders of the Indian Oceanmajor oceans
The borders of the Indian Ocean, as delineated by the International Hydrographic Organization in 1953 included the Southern Ocean but not the marginal seas along the northern rim, but in 2000 the IHO delimited the Southern Ocean separately, which removed waters south of 60°S from the Indian Ocean, but included the northern marginal seas.
The principal divisions (in descending order of area) are the: Pacific Ocean, Atlantic Ocean, Indian Ocean, Southern (Antarctic) Ocean, and Arctic Ocean.

Ninety East Ridge

All of the Indian Ocean is in the Eastern Hemisphere and the centre of the Eastern Hemisphere, the 90th meridian east, passes through the Ninety East Ridge.
The Ninety East Ridge (also rendered as Ninetyeast Ridge, 90E Ridge or 90°E Ridge) is a mid-ocean ridge on the Indian Ocean floor named for its near-parallel strike along the 90th meridian at the center of the Eastern Hemisphere.

Arabian Sea

North Arabian SeaIndia's west coastNorthern Arabian Sea
On the northern coast of the Arabian Sea, Gulf of Aden is connected to the Red Sea by the strait of Bab-el-Mandeb.
The Arabian Sea is a region of the northern Indian Ocean bounded on the north by Pakistan and Iran, on the west by the Gulf of Aden, Guardafui Channel and the Arabian Peninsula, on the southeast by the Laccadive Sea, on the southwest by the Somali Sea, and on the east by India.

Limpopo River

LimpopoLimpopo River basinLimpopo basin
The largest rivers are (order 5) the Zambezi, Ganges-Brahmaputra, Indus, Jubba, and Murray rivers and (order 4) the Shatt al-Arab, Wadi Ad Dawasir (a dried out river system on the Arabian Peninsula) and Limpopo rivers.
The Limpopo River rises in South Africa, and flows generally eastwards through Mozambique to the Indian Ocean.

Passive margin

passivepassive continental marginpassive continental margins
The passive margins have an average depth of 47.6 +/-.
Passive margins define the region around the Atlantic Ocean, Arctic Ocean, and western Indian Ocean, and define the entire coasts of Africa, Greenland, India and Australia.

Sea of Zanj

Zanj Sea
Along the east coast of Africa the Mozambique Channel separates Madagascar from mainland Africa, while the Sea of Zanj is located north of Madagascar.
The Sea of Zanj is a former name for that portion of the western Indian Ocean adjacent to the region in the African Great Lakes referred to by medieval Arab geographers as Zanj.

Bay of Bengal

Gulf of BengalHarkandBay of Bangal
The Bay of Bengal is off the eastcoast of India.
The Bay of Bengal is the northeastern part of the Indian Ocean, bounded on the west and northwest by India, on the north by Bangladesh, and on the east by Myanmar and the Andaman Islands of India and Myanmar and the Nicobar Islands of India.

Suez Canal

Suez Canal ZoneSuezCanal Zone
The Indian Ocean is artificially connected to the Mediterranean Sea through the Suez Canal, which is accessible via the Red Sea.
The canal offers watercraft a more direct route between the North Atlantic and northern Indian oceans via the Mediterranean and Red seas, thus avoiding the South Atlantic and southern Indian oceans and reducing the journey distance from the Arabian Sea to London, for example, by approximately 8900 km.

Mozambique Channel

ChannelMozambique Canal
Along the east coast of Africa the Mozambique Channel separates Madagascar from mainland Africa, while the Sea of Zanj is located north of Madagascar.
The Mozambique Channel (Canal du Mozambique, Lakandranon'i Mozambika, Canal de Moçambique) is an arm of the Indian Ocean located between the Southeast African countries of Madagascar and Mozambique.

Gulf of Tadjoura

Bay of TadjouraGulf of TadjourahGulf of Djibouti
In the Gulf of Aden the Gulf of Tadjoura is located in Djibouti and the Guardafui Channel separates Socotra island from the Horn of Africa.
The Gulf of Tadjoura, (Badda Tajuura) is a gulf or basin of the Indian Ocean in the Horn of Africa.

Andaman Sea

AndamanAndaman seacoast
The Andaman Sea is located between the Bay of Bengal and the Andaman Islands.
The Andaman Sea (historically also known as the Burma Sea) is a marginal sea of the eastern Indian Ocean separated from the Bay of Bengal (to its west) by the Andaman Islands of India and Myanmar and the Nicobar Islands of India and touching Myanmar, Thailand, and the Malay Peninsula.

Pacific Ocean

PacificSouth PacificWestern Pacific
Meridionally, the Indian Ocean is delimited from the Atlantic Ocean by the 20° east meridian, running south from Cape Agulhas, and from the Pacific Ocean by the meridian of 146°49'E, running south from the southernmost point of Tasmania.
Although Magellan himself died in the Philippines in 1521, Spanish Basque navigator Juan Sebastián Elcano led the remains of the expedition back to Spain across the Indian Ocean and round the Cape of Good Hope, completing the first world circumnavigation in a single expedition in 1522.

20th meridian east

20°20° E20°E
Meridionally, the Indian Ocean is delimited from the Atlantic Ocean by the 20° east meridian, running south from Cape Agulhas, and from the Pacific Ocean by the meridian of 146°49'E, running south from the southernmost point of Tasmania.
The meridian 20° east of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, Europe, Africa, the Atlantic and Indian oceans, the Southern Ocean, and Antarctica to the South Pole.

Cape Agulhas

Cape AghulasAgulhasCape Agulhas, South Africa
Meridionally, the Indian Ocean is delimited from the Atlantic Ocean by the 20° east meridian, running south from Cape Agulhas, and from the Pacific Ocean by the meridian of 146°49'E, running south from the southernmost point of Tasmania.
It is the geographic southern tip of the African continent and the beginning of the dividing line between the Atlantic and Indian Oceans according to the International Hydrographic Organization.

Murray River

River MurrayMurrayMurray Valley
The largest rivers are (order 5) the Zambezi, Ganges-Brahmaputra, Indus, Jubba, and Murray rivers and (order 4) the Shatt al-Arab, Wadi Ad Dawasir (a dried out river system on the Arabian Peninsula) and Limpopo rivers.
The water of the Murray flows through several terminal lakes that fluctuate in salinity (and were often fresh until recent decades) including Lake Alexandrina and The Coorong before emptying through the Murray Mouth into the southeastern portion of the Indian Ocean, often referenced on Australian maps as the Southern Ocean, near Goolwa.

90th meridian east

90°E90° E80°E
All of the Indian Ocean is in the Eastern Hemisphere and the centre of the Eastern Hemisphere, the 90th meridian east, passes through the Ninety East Ridge.
The meridian 90° east of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, Asia, the Indian Ocean, the Southern Ocean, and Antarctica to the South Pole.

Gulf of Mannar

Gulf of Mannar Biosphere ReserveBay of MannarMannar
The Gulf of Mannar and the Palk Strait separates Sri Lanka from India, while the Adam's Bridge separates the two.
The Gulf of Mannar is a large shallow bay forming part of the Laccadive Sea in the Indian Ocean.

Antarctica

AntarcticAntarctic continentReference Elevation Model of Antarctica
To the south it is bounded by the Southern Ocean or Antarctica, depending on the definition in use.
Positioned asymmetrically around the South Pole and largely south of the Antarctic Circle, Antarctica is the southernmost continent and is surrounded by the Southern Ocean; alternatively, it may be considered to be surrounded by the southern Pacific, Atlantic, and Indian Oceans, or by the southern waters of the World Ocean.