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Iceberg A23a
Iceberg A23a is a large tabular iceberg which Ice calving, calved from the Filchner–Ronne Ice Shelf in 1986. It was stuck on the sea bed for many years but then started moving in 2020. its area is about , which makes it the current List of recorded icebergs by area, largest iceberg in the world. it has run aground off South Georgia island. The base Druzhnaya Station#Druzhnaya I, Druzhnaya I, which was originally established on the Filchner–Ronne Ice Shelf, was situated on the iceberg when it calved. Subsequently, a rescue mission was started in 1987 and ultimately moved/renamed the base to Druzhnaya Station#Druzhnaya III, Druzhnaya III. In November 2023, A23a was tracked moving past the northern tip of the Antarctic Peninsula and heading towards the Southern Ocean. On 1 December 2023, the iceberg was intercepted by the polar research ship RRS Sir David Attenborough, RRS ''Sir David Attenborough'', off the tip of the Antarctic Peninsula. At 10 Knot (unit), knot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iceberg A23A Approaching South Georgia Island (MODIS 2025-02-21)
An iceberg is a piece of fresh water ice more than long that has broken off a glacier or an ice shelf and is floating freely in open water. Smaller chunks of floating glacially derived ice are called "growlers" or "bergy bits". Much of an iceberg is below the water's surface, which led to the expression "wikt:tip of the iceberg, tip of the iceberg" to illustrate a small part of a larger unseen issue. Icebergs are considered a List of ships sunk by icebergs, serious maritime hazard. Icebergs vary considerably in size and shape. Icebergs that Ice calving, calve from glaciers in Greenland are often irregularly shaped while Antarctica, Antarctic ice shelves often produce large tabular (table top) icebergs. The largest iceberg in recent history, named Iceberg B-15, B-15, was measured at nearly in 2000. The largest iceberg on record was an Antarctic tabular iceberg measuring sighted west of Scott Island, in the South Pacific Ocean, by the USS Glacier (AGB-4), USS ''Glacier'' on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of South Georgia
The history of South Georgia and the South Sandwich Islands is relatively recent. When European explorers discovered the islands, they were uninhabited, and their hostile climate, mountainous terrain, and remoteness made subsequent settlement difficult. Due to these conditions, human activity in the islands has largely consisted of seal hunting, sealing, whaling, and scientific surveys and research, interrupted by World War II and the Falklands War. 17th to 19th century The South Atlantic island of South Georgia, situated south of the Antarctic Convergence, was the first Antarctic territory to be discovered.A concise 1982 version of the book It was first visited in 1675 by Anthony de la Roché, Antoine de la Roché, an English merchant born in London to a French father.L. Ivanov and N. Ivanova. Roché Island / South Georgia. In''The World of Antarctica''.Generis Publishing, 2022. pp. 68–70. He left Hamburg in 1674 as a passenger on a 350-ton vessel bound for Peru. Du ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Icebergs
An iceberg is a piece of fresh water ice more than long that has broken off a glacier or an ice shelf and is floating freely in open water. Smaller chunks of floating glacially derived ice are called "growlers" or "bergy bits". Much of an iceberg is below the water's surface, which led to the expression "tip of the iceberg" to illustrate a small part of a larger unseen issue. Icebergs are considered a serious maritime hazard. Icebergs vary considerably in size and shape. Icebergs that calve from glaciers in Greenland are often irregularly shaped while Antarctic ice shelves often produce large tabular (table top) icebergs. The largest iceberg in recent history, named B-15, was measured at nearly in 2000. The largest iceberg on record was an Antarctic tabular iceberg measuring sighted west of Scott Island, in the South Pacific Ocean, by the USS ''Glacier'' on November 12, 1956. This iceberg was larger than Belgium. Etymology The word ''iceberg'' is a partial loan trans ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1986 In Antarctica
The year 1986 was designated as the International Year of Peace by the United Nations. Events January * January 1 ** Aruba gains increased autonomy from the Netherlands by separating from the Netherlands Antilles. ** Spain and Portugal enter the European Community, which becomes the European Union in 1993. * January 11 – The Sir Leo Hielscher Bridges, Gateway Bridge in Brisbane, Australia, at this time the world's longest prestressed concrete free-cantilever bridge, is opened. * January 13–January 24, 24 – South Yemen Civil War. * January 20 – The United Kingdom and France announce plans to construct the Channel Tunnel. * January 24 – The Voyager 2 space probe makes its first encounter with Uranus. * January 25 – Yoweri Museveni's National Resistance Army Rebel group takes over Uganda after leading a Ugandan Bush War, five-year guerrilla war in which up to half a million people are believed to have been killed. They will later use January 26 as the official date ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NASA Earth Observatory
NASA Earth Observatory is an online publishing outlet for NASA which was created in 1999. It is the principal source of satellite imagery and other scientific information about the climate and the environment which are being provided by NASA for consumption by the general public. It is funded with public money, as authorized by the United States Congress, and is part of the EOS Project Science Office located at Goddard Space Flight Center. , NASA Earth Observatory has won the Webby People's Voice Award in Education three times. There were a series of publicized images issued by the website in 2008, including imagery of clouds streaming over the Caspian Sea, dust storms curling off the coast of Morocco, the crumbling of the Wilkins Ice Shelf, Hurricane Bertha, and others. See also * Earth observation * Earth observation satellite * Space exploration Space exploration is the process of utilizing astronomy and space technology to investigate outer space. While the expl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guinness World Records
''Guinness World Records'', known from its inception in 1955 until 1999 as ''The Guinness Book of Records'' and in previous United States editions as ''The Guinness Book of World Records'', is a British reference book published annually, listing world records both of human achievements and the extremes of the natural world. Sir Hugh Beaver created the concept, and twin brothers Norris and Ross McWhirter co-founded the book in London in August 1955. The first edition topped the bestseller list in the United Kingdom by Christmas 1955. The following year the book was launched internationally, and as of the 2025 edition, it is now in its 70th year of publication, published in 100 countries and 40 languages, and maintains over 53,000 records in its database. The international franchise has extended beyond print to include television series and museums. The popularity of the franchise has resulted in ''Guinness World Records'' becoming the primary international source for cata ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2025 In Antarctica
This is a list of events occurring in Antarctica in 2025. Events Ongoing * Climate change in Antarctica * Avian influenza subtype H5N1 outbreak in Antarctica January * Chile's President Gabriel Boric visited the Amundsen-Scott South Pole Station, becoming the first leader in the Americas to visit the South Pole. * At the Little Dome C site, the European Beyond EPICA project has achieved a historic milestone by successfully drilling a 2800m-long ice core, consisting of ice which is more than 1.2 million years old. * On January 3, the Ukrainian icebreaker ''Noosfera'' has arrived at the Vernadsky Research Base. * On January 8, the French icebreaker '' L’Astrolabe'' has left the Dumont d’Urville station and arrived in Hobart on January 13, completing its 3rd rotation of the season. * The Canadian patrol vessel HMCS ''Margaret Brooke'' has departed Halifax on Operation PROJECTION 2025. This is the first-ever Antarctic visit by a Canadian military vessel. The missi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iceberg B-15
Iceberg B 15 was the largest recorded iceberg by area. It measured around , with a surface area of , about the size of the island of Jamaica. Calved from the Ross Ice Shelf of Antarctica in March 2000, Iceberg B-15 broke up into smaller icebergs, the largest of which was named Iceberg B-15-A. In 2003, B-15A drifted away from Ross Island into the Ross Sea and headed north, eventually breaking up into several smaller icebergs in October 2005. In 2018, a large piece of the original iceberg was steadily moving northward, located between the Falkland Islands and South Georgia Island. As of August 2023, the U.S. National Ice Center (USNIC) still lists one extant piece of B-15 that meets the minimum threshold for tracking (). This iceberg, B-15AB, measures ; it is currently grounded off the coast of Antarctica in the western sector of the Amery region. History In the last weeks of March 2000, Iceberg B-15 calved from the Ross Ice Shelf near Roosevelt Island, Antarctica. The calving ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iceberg A-76
Iceberg A-76 was a large iceberg which briefly held the title for the world's largest floating iceberg. It calved from the Filchner–Ronne Ice Shelf in Antarctica. A-76, effectively a piece of floating ice shelf, detached from the western side of the ice shelf. It floated through the Weddell Sea and by 2023 had reached the South Atlantic near South Georgia, carried by currents and winds. The iceberg was about long and wide, and is described as being shaped like a "giant ironing board", and roughly the size of the English county of Cornwall. The size at calving was an estimated . It was first spotted by Keith Makinson, a polar oceanographer with the British Antarctic Survey The British Antarctic Survey (BAS) is the United Kingdom's national polar research institute. It has a dual purpose, to conduct polar science, enabling better understanding of list of global issues, global issues, and to provide an active prese ... in May 2021. By day 148, the iceberg consisted of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British Antarctic Survey
The British Antarctic Survey (BAS) is the United Kingdom's national polar research institute. It has a dual purpose, to conduct polar science, enabling better understanding of list of global issues, global issues, and to provide an active presence in the Antarctic on behalf of the UK. It is part of the Natural Environment Research Council (NERC). With over 400 staff, BAS takes an active role in Antarctic affairs, operating five research stations, one ship and five aircraft in both polar regions, as well as addressing key global and regional issues. This involves joint research projects with over 40 UK universities and more than 120 national and international collaborations. Having taken shape from activities during World War II, it was known as the Falkland Islands Dependencies Survey until 1962. History Operation Tabarin was a small British expedition in 1943 to establish permanently occupied bases in the Antarctic. It was a joint undertaking by the British Admiralty, Admiralt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South Orkney Islands
The South Orkney Islands are a group of List of Antarctic and sub-Antarctic islands, islands in the Southern Ocean, about north-east of the tip of the Antarctic Peninsula''Antarctica: Secrets of the Southern Continent'' p. 122 , David McGonigal, 2009 and south-west of South Georgia Island. They have a total area of about . The islands are claimed both by Britain (as part of the British Antarctic Territory since 1962, previously as a Falkland Islands Dependencies, Falkland Islands Dependency) and by Argentina (as part of Argentine Antarctica). Under the 1959 Antarctic Treaty, sovereignty claims are held in abeyance. Britain and Argentina both maintain bases on the islands. The Argentine base, Orcadas Base, Orcadas, established in 1904, is sited on Laurie Island. The 11 buildings ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
