South Pole
Encyclopedia
Earth
Earth is the third planet from the Sun, and the densest and fifth-largest of the eight planets in the Solar System. It is also the largest of the Solar System's four terrestrial planets...
and lies on the opposite side of the Earth from the North Pole
North Pole
The North Pole, also known as the Geographic North Pole or Terrestrial North Pole, is, subject to the caveats explained below, defined as the point in the northern hemisphere where the Earth's axis of rotation meets its surface...
. Situated on the continent of Antarctica, it is the site of the United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...
Amundsen-Scott South Pole Station
Amundsen-Scott South Pole Station
The Amundsen–Scott South Pole Station is the American scientific research station on the high plateau of Antarctica. This station is located at the southernmost place on the Earth, the Geographic South Pole, at an elevation of 2,835 meters above sea level.The original Amundsen-Scott Station was...
, which was established in 1956 and has been permanently staffed since that year. The Geographic South Pole should not be confused with the South Magnetic Pole
South Magnetic Pole
The Earth's South Magnetic Pole is the wandering point on the Earth's surface where the geomagnetic field lines are directed vertically upwards...
.
Geography
North Pole
The North Pole, also known as the Geographic North Pole or Terrestrial North Pole, is, subject to the caveats explained below, defined as the point in the northern hemisphere where the Earth's axis of rotation meets its surface...
). However, the Earth's axis of rotation is actually subject to very small 'wobbles', so this definition is not adequate for very precise work; see Geographic North Pole for further information.
The geographic coordinates of the South Pole are usually given simply as 90°S, since its longitude is geometrically undefined and irrelevant. When a longitude is desired, it may be given as At the South Pole all directions face north. For this reason, directions at the Pole are given relative to "grid north", which points northwards along the prime meridian
Prime Meridian
The Prime Meridian is the meridian at which the longitude is defined to be 0°.The Prime Meridian and its opposite the 180th meridian , which the International Date Line generally follows, form a great circle that divides the Earth into the Eastern and Western Hemispheres.An international...
.
The Geographic South Pole is located on the continent of Antarctica (although this has not been the case for all of Earth's history
History of Earth
The history of the Earth describes the most important events and fundamental stages in the development of the planet Earth from its formation 4.578 billion years ago to the present day. Nearly all branches of natural science have contributed to the understanding of the main events of the Earth's...
because of continental drift
Continental drift
Continental drift is the movement of the Earth's continents relative to each other. The hypothesis that continents 'drift' was first put forward by Abraham Ortelius in 1596 and was fully developed by Alfred Wegener in 1912...
). It sits atop a featureless, windswept, icy plateau at an altitude of 2,835 metres (9,306 ft), about 1,300 km (800 mi) from the nearest open sea at Bay of Whales
Bay of Whales
The Bay of Whales is a natural ice harbor, or iceport, indenting the front of Ross Ice Shelf just north of Roosevelt Island. It is the southernmost point of open ocean not only of the Ross Sea, but worldwide...
. The ice is estimated to be about 2,700 metres (9,000 ft) thick at the Pole, so the land surface under the ice sheet is actually near sea level.
The polar ice sheet is moving at a rate of roughly 10 metres per year in a direction between 37° and 40° west of grid north, down towards the Weddell Sea
Weddell Sea
The Weddell Sea is part of the Southern Ocean and contains the Weddell Gyre. Its land boundaries are defined by the bay formed from the coasts of Coats Land and the Antarctic Peninsula. The easternmost point is Cape Norvegia at Princess Martha Coast, Queen Maud Land. To the east of Cape Norvegia is...
. Therefore, the position of the station and other artificial features relative to the geographic pole gradually shifts over time.
The Geographic South Pole is marked by a small sign and a stake in the ice pack, which are repositioned each year on New Year's Day
New Year's Day
New Year's Day is observed on January 1, the first day of the year on the modern Gregorian calendar as well as the Julian calendar used in ancient Rome...
to compensate for the movement of the ice. The sign records the respective dates that Roald Amundsen
Roald Amundsen
Roald Engelbregt Gravning Amundsen was a Norwegian explorer of polar regions. He led the first Antarctic expedition to reach the South Pole between 1910 and 1912 and he was the first person to reach both the North and South Poles. He is also known as the first to traverse the Northwest Passage....
and Robert F. Scott
Robert Falcon Scott
Captain Robert Falcon Scott, CVO was a Royal Navy officer and explorer who led two expeditions to the Antarctic regions: the Discovery Expedition, 1901–04, and the ill-fated Terra Nova Expedition, 1910–13...
reached the Pole, followed by a short quotation from each man and gives the elevation as 2,835 m (9,301 ft).
Ceremonial South Pole
The Ceremonial South Pole is an area set aside for photo opportunities at the South Pole StationAmundsen-Scott South Pole Station
The Amundsen–Scott South Pole Station is the American scientific research station on the high plateau of Antarctica. This station is located at the southernmost place on the Earth, the Geographic South Pole, at an elevation of 2,835 meters above sea level.The original Amundsen-Scott Station was...
. It is located a short distance from the Geographic South Pole, and consists of a metallic sphere on a plinth
Plinth
In architecture, a plinth is the base or platform upon which a column, pedestal, statue, monument or structure rests. Gottfried Semper's The Four Elements of Architecture posited that the plinth, the hearth, the roof, and the wall make up all of architectural theory. The plinth usually rests...
, surrounded by the flags of the Antarctic Treaty signatory states
Sovereign state
A sovereign state, or simply, state, is a state with a defined territory on which it exercises internal and external sovereignty, a permanent population, a government, and the capacity to enter into relations with other sovereign states. It is also normally understood to be a state which is neither...
.
Exploration
- See also: History of AntarcticaHistory of AntarcticaThe history of Antarctica emerges from early Western theories of a vast continent, known as Terra Australis, believed to exist in the far south of the globe...
, List of Antarctic expeditions, Heroic Age of Antarctic ExplorationHeroic Age of Antarctic ExplorationThe Heroic Age of Antarctic Exploration defines an era which extended from the end of the 19th century to the early 1920s. During this 25-year period the Antarctic continent became the focus of an international effort which resulted in intensive scientific and geographical exploration, sixteen...
and Farthest SouthFarthest SouthFarthest South was the term used to denote the most southerly latitudes reached by explorers before the conquest of the South Pole in 1911. Significant steps on the road to the pole were the discovery of lands south of Cape Horn in 1619, Captain James Cook's crossing of the Antarctic Circle in...
.
Pre-1900
In 1820, several expeditions claimed to have been the first to have sighted Antarctica, with the very first being the Russian expedition led by Faddey Bellingshausen and Mikhail Lazarev. The first landing was probably just over a year later when American Captain John Davis, a sealer, set foot on the ice.The basic geography of the Antarctic coastline was not understood until the mid-to-late 19th century. American naval officer Charles Wilkes
Charles Wilkes
Charles Wilkes was an American naval officer and explorer. He led the United States Exploring Expedition, 1838-1842 and commanded the ship in the Trent Affair during the American Civil War...
claimed (correctly) that Antarctica was a new continent based on his exploration in 1839–40, while James Clark Ross
James Clark Ross
Sir James Clark Ross , was a British naval officer and explorer. He explored the Arctic with his uncle Sir John Ross and Sir William Parry, and later led his own expedition to Antarctica.-Arctic explorer:...
, in his expedition of 1839–43, hoped that he might be able to sail all the way to the South Pole (he was unsuccessful).
1900–1950
Robert Falcon Scott
Captain Robert Falcon Scott, CVO was a Royal Navy officer and explorer who led two expeditions to the Antarctic regions: the Discovery Expedition, 1901–04, and the ill-fated Terra Nova Expedition, 1910–13...
on the Discovery Expedition
Discovery Expedition
The British National Antarctic Expedition, 1901–04, generally known as the Discovery Expedition, was the first official British exploration of the Antarctic regions since James Clark Ross's voyage sixty years earlier...
of 1901–04. Scott, accompanied by Ernest Shackleton
Ernest Shackleton
Sir Ernest Henry Shackleton, CVO, OBE was a notable explorer from County Kildare, Ireland, who was one of the principal figures of the period known as the Heroic Age of Antarctic Exploration...
and Edward Wilson
Edward Adrian Wilson
Edward Adrian Wilson was a notable English polar explorer, physician, naturalist, painter and ornithologist.-Early life:...
, set out with the aim of travelling as far south as possible, and on 31 December 1902, reached . Shackleton later returned to Antarctica as leader of the British Antarctic Expedition (Nimrod Expedition
Nimrod Expedition
The British Antarctic Expedition 1907–09, otherwise known as the Nimrod Expedition, was the first of three expeditions to the Antarctic led by Ernest Shackleton. Its main target, among a range of geographical and scientific objectives, was to be first to the South Pole...
) in a bid to reach the Pole. On 9 January 1909, with three companions, he reached – 112 statute miles from the Pole – before being forced to turn back.
The first humans to reach the Geographic South Pole were Norwegian
Norway
Norway , officially the Kingdom of Norway, is a Nordic unitary constitutional monarchy whose territory comprises the western portion of the Scandinavian Peninsula, Jan Mayen, and the Arctic archipelago of Svalbard and Bouvet Island. Norway has a total area of and a population of about 4.9 million...
Roald Amundsen and his party
Amundsen's South Pole expedition
The first expedition to reach the geographic South Pole was led by the Norwegian explorer Roald Amundsen. He and four others arrived at the pole on 14 December 1911, five weeks ahead of a British party led by Robert Falcon Scott...
on December 14, 1911. Amundsen named his camp Polheim
Polheim
Polheim was Roald Amundsen's name for his camp at the South Pole. He arrived there on December 14, 1911, along with four other members of his expedition; Helmer Hanssen, Olav Bjaaland, Oscar Wisting, and Sverre Hassel....
and the entire plateau surrounding the Pole King Haakon VII Vidde in honour of King Haakon VII of Norway
Haakon VII of Norway
Haakon VII , known as Prince Carl of Denmark until 1905, was the first king of Norway after the 1905 dissolution of the personal union with Sweden. He was a member of the House of Schleswig-Holstein-Sonderburg-Glücksburg...
. Robert Falcon Scott had also returned to Antarctica with his second expedition, the Terra Nova Expedition
Terra Nova Expedition
The Terra Nova Expedition , officially the British Antarctic Expedition 1910, was led by Robert Falcon Scott with the objective of being the first to reach the geographical South Pole. Scott and four companions attained the pole on 17 January 1912, to find that a Norwegian team led by Roald...
, in a race against Amundsen to the Pole. Scott and four other men reached the South Pole on January 17, 1912, thirty-four days after Amundsen. On the return trip, Scott and his four companions all died of starvation and extreme cold.
In 1914 Ernest Shackleton's Imperial Trans-Antarctic Expedition
Imperial Trans-Antarctic Expedition
The Imperial Trans-Antarctic Expedition , also known as the Endurance Expedition, is considered the last major expedition of the Heroic Age of Antarctic Exploration. Conceived by Sir Ernest Shackleton, the expedition was an attempt to make the first land crossing of the Antarctic continent...
set out with the goal of crossing Antarctica via the South Pole, but his ship, the Endurance
Endurance (1912 ship)
The Endurance was the three-masted barquentine in which Sir Ernest Shackleton sailed for the Antarctic on the 1914 Imperial Trans-Antarctic Expedition...
, was frozen in pack-ice
Sea ice
Sea ice is largely formed from seawater that freezes. Because the oceans consist of saltwater, this occurs below the freezing point of pure water, at about -1.8 °C ....
and sank 11 months later. The overland journey was never made.
US Admiral Richard Evelyn Byrd
Richard Evelyn Byrd
Rear Admiral Richard Evelyn Byrd, Jr., USN was a naval officer who specialized in feats of exploration. He was a pioneering American aviator, polar explorer, and organizer of polar logistics...
, with the assistance of his first pilot Bernt Balchen
Bernt Balchen
Bernt Balchen, , a winner of the Distinguished Flying Cross was a Norwegian native, and later U.S. citizen, known as a pioneer polar aviator, navigator, aircraft mechanical engineer and military leader. His service in the U.S...
, became the first person to fly over the South Pole on November 29, 1929.
1950–present
George J. Dufek
George John Dufek was an American naval officer, naval aviator, and Arctic expert. He served in World War II and the Korean War and in the 1940s and 1950s spent much of his career in the Antarctic, first with Admiral Byrd and later as supervisor of U.S. programs in the South Polar regions...
of the US Navy landed there in an R4D-5L Skytrain (C-47 Skytrain
C-47 Skytrain
The Douglas C-47 Skytrain or Dakota is a military transport aircraft that was developed from the Douglas DC-3 airliner. It was used extensively by the Allies during World War II and remained in front line operations through the 1950s with a few remaining in operation to this day.-Design and...
) aircraft. The US Amundsen-Scott South Pole Station
Amundsen-Scott South Pole Station
The Amundsen–Scott South Pole Station is the American scientific research station on the high plateau of Antarctica. This station is located at the southernmost place on the Earth, the Geographic South Pole, at an elevation of 2,835 meters above sea level.The original Amundsen-Scott Station was...
was established by air over 1956–1957 for the International Geophysical Year
International Geophysical Year
The International Geophysical Year was an international scientific project that lasted from July 1, 1957, to December 31, 1958. It marked the end of a long period during the Cold War when scientific interchange between East and West was seriously interrupted...
and has been continuously staffed since then by research and support personnel.
After Amundsen and Scott, the next people to reach the South Pole overland (albeit with some air support) were Edmund Hillary
Edmund Hillary
Sir Edmund Percival Hillary, KG, ONZ, KBE , was a New Zealand mountaineer, explorer and philanthropist. On 29 May 1953 at the age of 33, he and Sherpa mountaineer Tenzing Norgay became the first climbers known to have reached the summit of Mount Everest – see Timeline of climbing Mount Everest...
(January 4, 1958) and Vivian Fuchs
Vivian Fuchs
Sir Vivian Ernest Fuchs FRS was an English explorer whose expeditionary team completed the first overland crossing of Antarctica in 1958.- Biography :...
(January 19, 1958) and their respective parties, during the Commonwealth Trans-Antarctic Expedition
Commonwealth Trans-Antarctic Expedition
The 1955–58 Commonwealth Trans-Antarctic Expedition was a Commonwealth-sponsored expedition that successfully completed the first overland crossing of Antarctica, via the South Pole...
. There have been many subsequent expeditions to arrive at the South Pole by surface transportation, including those by Havola, Crary
Albert P. Crary
Albert Paddock Crary , was a pioneer polar geophysicist and glaciologist. He made it to the North and then to the South Pole on February 12, 1961 as the leader of a team of eight. The south pole expedition had set out from McMurdo Station on December 10, 1960, using three Snowcats with trailers...
and Fiennes.
Subsequent to the establishment, in 1987, of the logistic support base at Patriot Hills
Patriot Hills
Patriot Hills was the only private seasonally occupied camp in Antarctica. It was located in the Heritage Range of the Ellsworth Mountains, next to a group of hills that gives it its name...
, the South Pole became more accessible to non government expeditions.
On December 30, 1989, Arved Fuchs
Arved Fuchs
Arved Fuchs is a German explorer. On December 30, 1989, he and the famous mountain climber Reinhold Messner were the first to reach the South Pole without animal or motorised help, on skis and with wind-assistance...
and Reinhold Messner
Reinhold Messner
Reinhold Messner is an Italian mountaineer and explorer from Trentino-Alto Adige/Südtirol "whose astonishing feats on Everest and on peaks throughout the world have earned him the status of the greatest climber in history." He is renowned for making the first solo ascent of Mount Everest without...
were the first to traverse Antarctica via the South Pole without animal or motorised help, using only skis and the help of wind.
The fastest unsupported journey to the Geographic South Pole from the ocean is 24 days and one hour from Hercules Inlet
Hercules Inlet
Hercules Inlet is a large, narrow, ice-filled inlet which forms a part of the southwest margin of Ronne Ice Shelf. It is bounded on the west by the southeast flank of the Heritage Range, and on the north by Skytrain Ice Rise. Named by Advisory Committee on Antarctic Names for the LC-130 Hercules...
and was set in 2011 by Norwegian adventurer Christian Eide, who beat the previous solo record set in 2009 by American Todd Carmichael of 39 days and seven hours, and the previous group record also set in 2009 of 33 days and 23 hours.
Territorial claims
- Antarctic territorial claims and Antarctica – Politics.
Climate, and day and night
- See also Climate of AntarcticaClimate of AntarcticaThe climate of Antarctica is the coldest on the whole of Earth. Antarctica has the lowest naturally occurring temperature ever recorded on the ground on Earth: −89.2 °C at Vostok Station. It is also extremely dry , averaging 166 mm of precipitation per year...
, Midnight sunMidnight sunThe midnight sun is a natural phenomenon occurring in summer months at latitudes north and nearby to the south of the Arctic Circle, and south and nearby to the north of the Antarctic Circle where the sun remains visible at the local midnight. Given fair weather, the sun is visible for a continuous...
and Polar nightPolar nightThe polar night occurs when the night lasts for more than 24 hours. This occurs only inside the polar circles. The opposite phenomenon, the polar day, or midnight sun, occurs when the sun stays above the horizon for more than 24 hours.-Description:...
During the southern winter (March–September), the South Pole receives no sunlight at all, and from May to July, between extended periods of twilight, it is completely dark (apart from moonlight). In the summer (September–March), the sun is continuously above the horizon and appears to move in an anti-clockwise circle. However, it is always low in the sky, reaching a maximum of 23.5° in December. Much of the sunlight that does reach the surface is reflected by the white snow. This lack of warmth from the sun, combined with the high altitude (about 2800 metres (9,186 ft)), means that the South Pole has one of the coldest climates on Earth (though it is not quite the coldest; that record goes to the region in the vicinity of the Vostok Station
Vostok Station
Vostok Station was a Russian Antarctic research station. It was at the southern Pole of Cold, with the lowest reliably measured natural temperature on Earth of −89.2 °C . Research includes ice core drilling and magnetometry...
, also in Antarctica, which lies at a higher elevation). Temperatures at the South Pole are much lower than at the North Pole, primarily because the South Pole is located at altitude in the middle of a continental land mass, while the North Pole is at sea level in the middle of an ocean (which acts as a reservoir of heat).
In midsummer, as the sun reaches its maximum elevation of about 23.5 degrees, high temperatures at the South Pole in January average at -25.9 C. As the six-month "day" wears on and the sun gets lower, temperatures drop as well: they reach -45 C around sunset (late March) and sunrise (late September). In winter, the average temperature remains steady at around -58 C. The highest temperature ever recorded at the Amundsen-Scott South Pole Station
Amundsen-Scott South Pole Station
The Amundsen–Scott South Pole Station is the American scientific research station on the high plateau of Antarctica. This station is located at the southernmost place on the Earth, the Geographic South Pole, at an elevation of 2,835 meters above sea level.The original Amundsen-Scott Station was...
was -13.6 C on December 27, 1978, and the lowest was -82.8 C on June 23, 1982. (The lowest recorded anywhere on earth was -89.2 C at Vostok Station
Vostok Station
Vostok Station was a Russian Antarctic research station. It was at the southern Pole of Cold, with the lowest reliably measured natural temperature on Earth of −89.2 °C . Research includes ice core drilling and magnetometry...
on July 21, 1983.)
The South Pole has a desert climate, almost never receiving any precipitation. Air humidity is near zero. However, high winds can cause the blowing of snowfall, and the accumulation of snow amounts to about 20 cm (7.9 in) per year. The dome seen in the pictures is partially buried due to snow storms, and the entrance to the dome has to be regularly bulldozed to uncover it. More recent buildings are raised on stilts so that the snow does not build up against the sides of them.
Time
In most places on Earth, local time is determined by longitudeLongitude
Longitude is a geographic coordinate that specifies the east-west position of a point on the Earth's surface. It is an angular measurement, usually expressed in degrees, minutes and seconds, and denoted by the Greek letter lambda ....
, such that the time of day is more-or-less synchronised to the position of the sun in the sky (for example, at midday the sun is roughly at its highest). This line of reasoning fails at the South Pole, where the sun rises and sets only once per year, and all lines of longitude, and hence all time zones, converge. There is no a priori reason for placing the South Pole in any particular time zone, but as a matter of practical convenience the Amundsen-Scott South Pole Station
Amundsen-Scott South Pole Station
The Amundsen–Scott South Pole Station is the American scientific research station on the high plateau of Antarctica. This station is located at the southernmost place on the Earth, the Geographic South Pole, at an elevation of 2,835 meters above sea level.The original Amundsen-Scott Station was...
keeps New Zealand Time. This is because the US flies its resupply missions ("Operation Deep Freeze
Operation Deep Freeze
Operation Deep Freeze is the codename for a series of United States missions to Antarctica, beginning with "Operation Deep Freeze I" in 1955–56, followed by "Operation Deep Freeze II", "Operation Deep Freeze III", and so on...
") out of McMurdo Station
McMurdo Station
McMurdo Station is a U.S. Antarctic research center located on the southern tip of Ross Island, which is in the New Zealand-claimed Ross Dependency on the shore of McMurdo Sound in Antarctica. It is operated by the United States through the United States Antarctic Program, a branch of the National...
which is supplied from Christchurch
Christchurch
Christchurch is the largest city in the South Island of New Zealand, and the country's second-largest urban area after Auckland. It lies one third of the way down the South Island's east coast, just north of Banks Peninsula which itself, since 2006, lies within the formal limits of...
, New Zealand.
Flora and fauna
Due to its exceptionally harsh climate, there are no native resident plants or animals at the South Pole. Remarkably, though, off-course skuaSkua
The skuas are a group of seabirds with about seven species forming the family Stercorariidae and the genus Stercorarius. The three smaller skuas are called jaegers in North America....
s are occasionally seen there.
In 2000 it was reported that microbes had been detected living in the South Pole ice, though scientists think it is unlikely that they evolved in Antarctica.
See also
- Antarctica
- List of Antarctic expeditions
- South Pole TelescopeSouth Pole TelescopeThe South Pole Telescope is a 10 metre diameter telescope located at the Amundsen-Scott South Pole Station, Antarctica. It is a microwave/millimetre-wave telescope that observes in a frequency range between 70 and 300 GHz...
- North PoleNorth PoleThe North Pole, also known as the Geographic North Pole or Terrestrial North Pole, is, subject to the caveats explained below, defined as the point in the northern hemisphere where the Earth's axis of rotation meets its surface...
External links
- NOAA South Pole Webcam
- 360° Panoramas of the South Pole
- Images of this location are available at the Degree Confluence ProjectDegree Confluence ProjectThe Degree Confluence Project is a World Wide Web-based all-volunteer project which aims to have people visit each of the integer degree intersections of latitude and longitude on Earth, posting photographs and a narrative of each visit online. Intersections are defined on the horizontal datum WGS...
- South Pole Photo Gallery
- Poles by the Australian Antarctic Division
- The Antarctic Sun - Online news source for the U.S. Antarctic Program
- Big Dead Place
- UK team makes polar trek history - BBC News article on first expedition to Pole of Inaccessibility without mechanical assistance
- Listen to Ernest Shackleton describing his 1908 South Pole Expedition, and read more about the recording on [australianscreen online].
- The recording describing Shackleton's 1908 South Pole Expedition was added to the National Film and Sound ArchiveNational Film and Sound ArchiveThe National Film and Sound Archive is Australia’s audiovisual archive, responsible for developing, preserving, maintaining, promoting and providing access to a national collection of audiovisual materials and related items...
's Sounds of Australia Registry in 2007