28 Facts About Indian Ocean


Along its core, the Indian Ocean has some large marginal or regional seas such as the Arabian Sea, Laccadive Sea, Somali Sea, Bay of Bengal, and Andaman Sea.

FactSnippet No. 550,997

Indian Ocean has been known by its present name since at least 1515 when the Latin form Oceanus Orientalis Indicus is attested, named for India, which projects into it.

FactSnippet No. 550,998

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.

FactSnippet No. 550,999

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.

FactSnippet No. 551,000

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.

FactSnippet No. 551,001

In contrast to the Atlantic and Pacific, the Indian Ocean is enclosed by major landmasses and an archipelago on three sides and does not stretch from pole to pole, and can be likened to an embayed ocean.

FactSnippet No. 551,002

The Indian Ocean is artificially connected to the Mediterranean Sea without ship lock through the Suez Canal, which is accessible via the Red Sea.

FactSnippet No. 551,003

In 1999, the Indian Ocean Experiment showed that fossil fuel and biomass burning in South and Southeast Asia caused air pollution that reach as far as the Intertropical Convergence Zone at 60°S.

FactSnippet No. 551,004

Indian Ocean contains the largest submarine fans of the world, the Bengal Fan and Indus Fan, and the largest areas of slope terraces and rift valleys.

FactSnippet No. 551,005

Water circulation in the Indian Ocean is dominated by the Subtropical Anticyclonic Gyre, the eastern extension of which is blocked by the Southeast Indian Ridge and the 90°E Ridge.

FactSnippet No. 551,006

The garbage patch in the Indian Ocean will, according to a 2012 study, decrease in size after several decades to vanish completely over centuries.

FactSnippet No. 551,007

West Indian Ocean coelacanth was discovered in the Indian Ocean off South Africa in the 1930s and in the late 1990s another species, the Indonesian coelacanth, was discovered off Sulawesi Island, Indonesia.

FactSnippet No. 551,008

Several species on the islands of the Indian Ocean are textbook cases of evolutionary processes; the dung beetles, day geckos, and lemurs are all examples of adaptive radiation.

FactSnippet No. 551,009

The written history of the Indian Ocean, however, has been Eurocentric and largely dependent on the availability of written sources from the colonial era.

FactSnippet No. 551,010

Diverse history of the Indian Ocean is a unique mix of cultures, ethnic groups, natural resources, and shipping routes.

FactSnippet No. 551,011

Since then, waves of migration have resettled people and, clearly, the Indian Ocean littoral had been inhabited long before the first civilisations emerged.

FactSnippet No. 551,012

Human culture spread early on the shores of the Indian Ocean and was always linked to the cultures of the Mediterranean and the Persian Gulf.

FactSnippet No. 551,013

The contemporaneous settlement of Madagascar by Austronesian sailors shows that the littoral margins of the Indian Ocean were being both well-populated and regularly traversed at least by this time.

FactSnippet No. 551,014

Trade across the Indian Ocean gradually introduced Arabic script and rice as a staple in Eastern Africa.

FactSnippet No. 551,015

From 1405 to 1433 admiral Zheng He said to have led large fleets of the Ming Dynasty on several treasure voyages through the Indian Ocean, ultimately reaching the coastal countries of East Africa.

FactSnippet No. 551,016

European slave trade in the Indian Ocean began when Portugal established Estado da India in the early 16th century.

FactSnippet No. 551,017

Maps that included the Indian Ocean had been produced by Muslim geographers centuries before the Ottoman conquests; Muslim scholars, such as Ibn Battuta in the 14th Century, had visited most parts of the known world; contemporarily with Vasco da Gama, Arab navigator Ahmad ibn Majid had compiled a guide to navigation in the Indian Ocean; the Ottomans, nevertheless, began their own parallel era of discovery which rivalled the European expansion.

FactSnippet No. 551,018

Slave trade in the Indian Ocean was, nevertheless, very limited compared to c slaves exported across the Atlantic.

FactSnippet No. 551,019

On 26 December 2004 fourteen countries around the Indian Ocean were hit by a wave of tsunamis caused by the 2004 Indian Ocean earthquake.

FactSnippet No. 551,020

Sovereignty of the Chagos Archipelago in the Indian Ocean is disputed between the United Kingdom and Mauritius.

FactSnippet No. 551,021

Sea lanes in the Indian Ocean are considered among the most strategically important in the world with more than 80 percent of the world's seaborne trade in oil transits through the Indian Ocean and its vital chokepoints, with 40 percent passing through the Strait of Hormuz, 35 percent through the Strait of Malacca and 8 percent through the Bab el-Mandab Strait.

FactSnippet No. 551,022

Indian Ocean provides major sea routes connecting the Middle East, Africa, and East Asia with Europe and the Americas.

FactSnippet No. 551,023

Chinese companies have made investments in several Indian Ocean ports, including Gwadar, Hambantota, Colombo and Sonadia.

FactSnippet No. 551,024