Atlantic Ocean
The Atlantic Ocean was an Earth ocean that bordered North America, South America, Europe and Africa.
Beneath the Atlantic Ocean were ocean trenches. The high pressure in these trenches meant that fish had to be specially adapted in order to survive. The Torchwood Hub had an aquarium containing deep-sea fish from the Atlantic Ocean. (PROSE: Slow Decay)
Historical events
Distant past
Circa 400,000,000 BC, the area of Earth that would later become the middle of the Atlantic was a vast, rocky wasteland. (TV: City of Death)
According to legend, Atlantis was located in the middle of the Atlantic Ocean. Another, however, held it to be part of the Minoan civilisation. (TV: The Time Monster)
Modern era
The America crossed the Atlantic in 17 days. (TV: Enlightenment)
19th century
While crossing the Atlantic in 1872, the Mary Celeste encountered first the First Doctor and the TARDIS and then the Daleks. The crew abandoned ship to escape the latter. The mysteriously abandoned ship passed into legend. (TV: The Chase)
20th century
In 1912, the RMS Titanic was crossing the Atlantic when it famously hit an iceberg and sank. (PROSE: The Left-Handed Hummingbird)
In 1915, during World War I, the Doctor's TARDIS materialised on a ship crossing the Atlantic which was shortly hit by a German torpedo and sank. (AUDIO: The Sirens of Time)
In November 1930, the Tenth Doctor savoured the Atlantic breeze upon his arrival in New York. (TV: Daleks in Manhattan)
In the 1960s, Ben Jackson served in the Atlantic. (AUDIO: The Mouthless Dead)
The Doctor's TARDIS landed on the Queen Mary in 1963. (PROSE: Ghost Ship)
A version of Atlantis was found at the Atlantic ridge, west of Gibraltar and south of the Azores. Around the 20th century, Professor Zaroff discovered the surviving Atlanteans and proposed to raise their settlement from the ocean floor. This would have destroyed the Earth. Zaroff died in the attempt due to the Second Doctor's intervention. (TV: The Underwater Menace)
In Roma I, the Roman Empire included marine cities in the Atlantic Ocean. (PROSE: Warlords of Utopia)
21st century
In 2010, Jo Jones and Santiago Jones heard of the Eleventh Doctor's death and wanted to go to his funeral. They used a cargo plane to get across the Atlantic to Dublin. From there they took ferry to Wales. (TV: Death of the Doctor, PROSE: Death of the Doctor)
By the 2010s, the North Atlantic garbage patch was situated in the middle of the Atlantic Ocean, a "floating landfill" of marine trash. The Nestene Consciousness took control of this massive collection of plastic. (AUDIO: Sargasso)
Far future
A Great Atlantic Smog Storm lasted for 20 years as of 200,100. (TV: Bad Wolf)
Legacy
A New Atlantic was located on New Earth. (TV: Gridlock)
Alternate timelines
During the Year That Never Was from 2008 to 2009, Martha Jones was said to have crossed the Atlantic. (TV: Last of the Time Lords)