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what is the deepest point in the indian ocean
Deepest points of the Indian Ocean and Southern Ocean revealed
New seabed surveys show, for the first time, the deepest points of the Indian Ocean and the Southern Ocean.
As part of the Five Deeps Expedition team, scientists from Caladan Oceanic LLC and the British Geological Survey have surveyed in detail the deepest reaches of the Java and South Sandwich trenches.
Data published in Geoscience Data Journal shows the deepest point of the Indian Ocean at 7187 m.
within the Java Trench, and the deepest point of the Southern Ocean at 7432 m, within the South Sandwich Trench.
Prior to the Five Deeps Expedition (FDE) the deepest parts of some oceans were relatively well known.
such as Challenger Deep in the Mariana Trench, but others had multiple ‘deeps’ where several contenders challenged for the deepest point in that particular ocean.
exact location of the deepest point
Until now, there had been a lack of high-resolution data available for the Indian Ocean and Southern Ocean .
and there was considerable doubt as to the exact location of the deepest point, let alone accurate depth measurements.
Located just north of the Antarctic continent, the South Sandwich Trench spans both the Southern and Atlantic oceans.
It had not been thoroughly explored prior to the FDE mission and is the only subzero hadal zone (deeper than 6000 m) in the world.
The FDE survey produced the most accurate mapping of the South Sandwich Trench to date, using a modern multibeam sonar system.
The new survey has shown that the deepest point of the trench is Meteor Deep at 8265 m and is located within the waters of the Atlantic Ocean.
The recently named Factorian Deep, located at the southern end of the trench, is 7432 m deep.
what is the deepest point in the arctic ocean
The Arctic Ocean is the smallest and shallowest of the world’s five major oceans.
 It spans an area of approximately 14,060,000 km2 (5,430,000 sq mi) and is also known as the coldest of all the oceans.
The International Hydrographic Organization (IHO) recognizes it as an ocean, although some oceanographers call it the Arctic Mediterranean Sea.
It has been described approximately as an estuary of the Atlantic Ocean.
 It is also seen as the northernmost part of the all-encompassing World Ocean.
The Arctic Ocean includes the North Pole region in the middle of the Northern Hemisphere and extends south to about 60°N.
The Arctic Ocean is surrounded by Eurasia and North America, and the borders follow topographic features:
the Bering Strait on the Pacific side and the Greenland Scotland Ridge on the Atlantic side. It is mostly covered by sea ice throughout the year and almost completely in winter.
what is the deepest point in the southern ocean
Indian Ocean, body of salt water covering approximately one-fifth of the total ocean area of the world.
It is the smallest, geologically youngest, and physically most complex of the world’s three major oceans .
(Pacific, Atlantic, and Indian).
It stretches for more than 6,200 miles (10,000 km) between the southern tips of Africa and Australia and, without its marginal seas, has an area of about 27,243,000 square miles .
(70,560,000 square km). , Pakistan, India, and Bangladesh to the north;
the Southern Ocean to the south
the Malay Peninsula, the Sunda Islands of Indonesia, and Australia to the east;
the Southern Ocean to the south; and Africa and the Arabian Peninsula to the west.
In the southwest it joins the Atlantic Ocean south of the southern tip of Africa, and to the east and southeast its waters mingle with those of the Pacific Ocean.
The clearest border and the one most generally agreed upon is that with the Atlantic Ocean.
which runs from Cape Agulhas, at the southern tip of Africa, due south along the 20° E meridian.
The northeastern border is the most difficult to define.
The one most generally agreed upon runs northwest from Cape Londonderry in Australia across the Timor Sea, along the southern shores of the Lesser Sunda Islands and of Java, and then across the Sunda Strait to the shores of the island of Sumatra.
Between Sumatra and the Malay Peninsula the boundary is usually drawn across the Singapore Strait.
agreement on the southern limit of the Indian Ocean
There is no universal agreement on the southern limit of the Indian Ocean.
In general (and for the purposes of this article), it is defined as extending southward to latitude 60° S, based on the recognition by several researchers and other authorities of the presence of the Southern Ocean south of this line. Some authorities, however, maintain that the Indian Ocean extends to the Antarctic coast.
where is the deepest point in the arctic ocean
The average depth of the Arctic Ocean is 1,038 m (3,406 ft). The deepest point is Molloy Hole in the Fram Strait, at about 5,550 m (18,210 ft).
where is the deepest point in the southern ocean
South Sandwich Trench
The Java Trench, in the eastern Indian Ocean, is more than 4000 km long. In April 2019, the FDE undertook the first crewed descent to the absolute bottom of the trench (7187 m).
This mission also produced the deepest dive by a British citizen, Prof Alan Jamieson, who was also the first British person to descend into the hadal zone.
Since then, Prof Jamieson and fellow Brit John Ramsay dived to the deepest points of the Mariana Trench, beating that record, during the FDE.
The submersible DSV Limiting Factor played a crucial role in mapping the deeps.
Many offshore expeditions do not have the time or technology to send these sensors to the sea floor.
so rely on sound velocity models rather than direct measurements making this work unique.
The area mapped for the first time during the FDE is roughly equivalent to the size of Finland.
which is the deepest point in the indian ocean
The Sunda Trench, earlier known as and sometimes still indicated as the Java Trench,
is an oceanic trench located in the Indian Ocean near Sumatra, formed where the Australian-Capricorn plates subduct under a part of the Eurasian Plate.
It is 3,200 kilometres (2,000 mi) long with a maximum depth of 7,290 metres (23,920 feet).
Its maximum depth is the deepest point in the Indian Ocean.
The trench stretches from the Lesser Sunda Islands past Java, around the southern coast of Sumatra on to the Andaman Islands.
and forms the boundary between Indo-Australian Plate and Eurasian plate (more specifically, Sunda Plate).
The trench is considered to be part of the Pacific Ring of Fire as well as one of a ring of oceanic trenches around the northern edges of the Australian Plate.