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Cook Ice Shelf
Cook Ice Shelf is an ice shelf about wide, occupying a deep recession of the coastline between Cape Freshfield and Cape Hudson, to the east of Deakin Bay. This bay was discovered by the US Exploring Expedition in 1840, and referred to by Wilkes as Disappointment Bay. This indentation was called Cook Bay by the Australasian Antarctic Expedition, 1911–14, under Douglas Mawson, who named it for Joseph Cook, Prime Minister of Australia in 1914. The generic term has been amended, as the bay is permanently filled by an ice shelf. Scientists studying the effects of global warming have proposed that sea water encroachment in the area could destabilize a significant portion of the East Antarctic Ice Sheet The East Antarctic Ice Sheet (EAIS) is one of two large ice sheets in Antarctica, and the largest on the entire planet. The EAIS lies between 45° west and 168° east longitudinally. The EAIS holds enough ice to raise global sea levels by and .... References * Ice ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ice Shelf
An ice shelf is a large floating platform of ice that forms where a glacier or ice sheet flows down to a coastline and onto the ocean surface. Ice shelves are only found in Antarctica, Greenland, Northern Canada, and the Russian Arctic. The boundary between the floating ice shelf and the anchor ice (resting on bedrock) that feeds it is the grounding line. The thickness of ice shelves can range from about to . In contrast, sea ice is formed on water, is much thinner (typically less than ), and forms throughout the Arctic Ocean. It is also found in the Southern Ocean around the continent of Antarctica. The movement of ice shelves is principally driven by gravity-induced pressure from the grounded ice. That flow continually moves ice from the grounding line to the seaward front of the shelf. In steady state, about half of Antarctica's ice shelf mass is lost to basal melt and half is lost to calving, but the relative importance of each process varies significantly between ice s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cape Freshfield
Cape Freshfield () is an ice-covered cape between Deakin Bay and the Cook Ice Shelf, Antarctica. The coastline in this vicinity was first roughly charted by the United States Exploring Expedition (1838–42) under Lieutenant Charles Wilkes, and for a period this cape was thought to be Wilkes' Cape Hudson. The cape was mapped in 1912 by the Far Eastern Party of the Australasian Antarctic Expedition under Douglas Mawson, who named it for Douglas Freshfield, a long-time member of the Council of the Royal Geographical Society The Royal Geographical Society (with the Institute of British Geographers), often shortened to RGS, is a learned society and professional body for geography based in the United Kingdom. Founded in 1830 for the advancement of geographical scien ..., and one time president of that organization. References Headlands of George V Land {{GeorgeVLand-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cape Hudson
Mawson Peninsula () is a high (), narrow, ice-covered peninsula on the George V Coast, on the west side of the Slava Ice Shelf, Antarctica, terminating in Cape Hudson. It extends for over in a northwesterly direction. The peninsula was photographed from the air by U.S. Navy Operation Highjump, 1946–47, and was sketched and photographed by Phillip Law of the Australian National Antarctic Research Expeditions who flew along it to its northern end in February 1959. It was named by the Antarctic Names Committee of Australia for Sir Douglas Mawson. Cape Hudson () is the north cape of Mawson Peninsula. Land was sighted in this area on January 19, 1840, by the crew of Lt. William L. Hudson's USS Peacock during the United States Exploring Expedition (1838–42) under Charles Wilkes, who applied the name Cape Hudson. An analysis by B.P. Lambert and P.G. Law of the USEE chart, and of the photographs taken by USN Operation Highjump (1946–47) and ANARE (Australian National Antarctic Resear ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deakin Bay
Deakin Bay () is a wide, open bay on the coast between Horn Bluff and Cape Freshfield. The bay was roughly delineated by the Far Eastern Party of the Australasian Antarctic Expedition (1911–14) under Sir Douglas Mawson, who named it for Alfred Deakin, Prime Minister of Australia in 1910. In certain historical accounts and charts this feature has been correlated with "Peacock Bay" of the U.S. Exploring Expedition (1838–42) under Lieutenant Charles Wilkes Charles Wilkes (April 3, 1798 – February 8, 1877) was an American naval officer, ship's captain, and explorer. He led the United States Exploring Expedition (1838–1842). During the American Civil War (1861–1865), he commanded ' during the ..., U.S. Navy. References * Bays of George V Land {{GeorgeVLand-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
US Exploring Expedition
The United States Exploring Expedition of 1838–1842 was an exploring and surveying expedition of the Pacific Ocean and surrounding lands conducted by the United States. The original appointed commanding officer was Commodore Thomas ap Catesby Jones. Funding for the original expedition was requested by President John Quincy Adams in 1828; however, Congress would not implement funding until eight years later. In May 1836, the oceanic exploration voyage was finally authorized by Congress and created by President Andrew Jackson. The expedition is sometimes called the U.S. Ex. Ex. for short, or the Wilkes Expedition in honor of its next appointed commanding officer, United States Navy Lieutenant Charles Wilkes. The expedition was of major importance to the growth of science in the United States, in particular the then-young field of oceanography. During the event, armed conflict between Pacific islanders and the expedition was common and dozens of natives were killed in action, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles Wilkes
Charles Wilkes (April 3, 1798 – February 8, 1877) was an American naval officer, ship's captain, and explorer. He led the United States Exploring Expedition (1838–1842). During the American Civil War (1861–1865), he commanded ' during the Trent Affair in which he stopped a Royal Mail ship and removed two Confederate diplomats, which almost led to war between the United States and the United Kingdom. Early life and career Wilkes was born in New York City, on April 3, 1798, as the great nephew of the former Lord Mayor of London John Wilkes. His mother was Mary Seton, who died in 1802 when Charles was just three years old. As a result, Charles was raised by his aunt, Elizabeth Ann Seton, who would later convert to Roman Catholicism and become the first American-born woman canonized a saint by the Catholic Church. When Elizabeth was left widowed with five children, Charles was sent to a boarding school, and later attended Columbia College, which is the present-day Columbia Uni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australasian Antarctic Expedition
The Australasian Antarctic Expedition was a 1911–1914 expedition headed by Douglas Mawson that explored the largely uncharted Antarctic coast due south of Australia. Mawson had been inspired to lead his own venture by his experiences on Ernest Shackleton's ''Nimrod'' expedition in 1907–1909. During its time in Antarctica, the expedition's sledging parties covered around of unexplored territory, while its ship, , navigated of unmapped coastline. Scientific activities included meteorological measurements, magnetic observations, an expansive oceanographic program, and the collection of many biological and geological samples, including the discovery of the first meteorite found in Antarctica. The expedition was the first to establish and maintain wireless contact between Antarctica and Australia. Another planned innovation – the use of an aircraft – was thwarted by an accident before the expedition sailed. The plane's fuselage was adapted to form a motorised sledge or "air ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Douglas Mawson
Sir Douglas Mawson OBE FRS FAA (5 May 1882 – 14 October 1958) was an Australian geologist, Antarctic explorer, and academic. Along with Roald Amundsen, Robert Falcon Scott, and Sir Ernest Shackleton, he was a key expedition leader during the Heroic Age of Antarctic Exploration. Mawson was born in England and came to Australia as an infant. He completed degrees in mining engineering and geology at the University of Sydney. In 1905 he was made a lecturer in petrology and mineralogy at the University of Adelaide. Mawson's first experience in the Antarctic came as a member of Shackleton's ''Nimrod'' Expedition (1907–1909), alongside his mentor Edgeworth David. They were part of the expedition's northern party, which became the first to attain the South Magnetic Pole and to climb Mount Erebus. After his participation in Shackleton's expedition, Mawson became the principal instigator of the Australasian Antarctic Expedition (1911–1914). The expedition explored thousand ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Joseph Cook
Sir Joseph Cook, (7 December 1860 – 30 July 1947) was an Australian politician who served as the sixth Prime Minister of Australia, in office from 1913 to 1914. He was the leader of the Liberal Party from 1913 to 1917, after earlier serving as the leader of the Anti-Socialist Party from 1908 to 1909. Cook was born in Silverdale, Staffordshire, England, and began working in the local coal mines at the age of nine. He emigrated to Australia in 1885, settling in Lithgow, New South Wales. He continued to work as a miner, becoming involved with the local labour movement as a union official. In 1891, Cook was elected to the New South Wales Legislative Assembly as a representative of the Labor Party, becoming one of its first members of parliament. He was elected party leader in 1893, but the following year left Labor due to a disagreement over party discipline. He was then invited to become a government minister under George Reid, and joined Reid's Free Trade Party. In 1901, C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prime Minister Of Australia
The prime minister of Australia is the head of government of the Commonwealth of Australia. The prime minister heads the executive branch of the Australian Government, federal government of Australia and is also accountable to Parliament of Australia, federal parliament under the principles of responsible government. The current prime minister is Anthony Albanese of the Australian Labor Party, who became prime minister on 23 May 2022. Formally appointed by the Governor-General of Australia, governor-general, the role and duties of the prime minister are not described by the Constitution of Australia, Australian constitution but rather defined by Constitutional convention (political custom), constitutional convention deriving from the Westminster system. To become prime minister, a politician should be able to Confidence and supply, command the confidence of the House of Representatives (Australia), House of Representatives. As such, the prime minister is typically the leader o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Effects Of Global Warming
The effects of climate change impact the physical environment, ecosystems and human societies. The environmental effects of climate change are broad and far-reaching. They affect the Effects of climate change on the water cycle, water cycle, Effects of climate change on oceans, oceans, Arctic sea ice decline, sea and land ice (Retreat of glaciers since 1850, glaciers), Sea level rise, sea level, as well as weather and Climate extremes, climate extreme events. The changes in climate are not uniform across the Earth. In particular, most land areas have warmed faster than most ocean areas, and the Arctic is warming faster than most other regions. The regional changes vary: at high latitudes it is the average temperature that is increasing, while for the oceans and tropics it is in particular the rainfall and the water cycle where changes are observed. The magnitude of future impacts of climate change can be reduced by climate change mitigation and adaptation. Climate change has l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
East Antarctic Ice Sheet
The East Antarctic Ice Sheet (EAIS) is one of two large ice sheets in Antarctica, and the largest on the entire planet. The EAIS lies between 45° west and 168° east longitudinally. The EAIS holds enough ice to raise global sea levels by and is considerably larger in area and mass than the West Antarctic Ice Sheet (WAIS). It is separated from the WAIS by the Transantarctic Mountains. The EAIS is the driest, windiest, and coldest place on Earth, with temperatures reported down to nearly -100°C. The EAIS holds the thickest ice on Earth, at . It is home to the geographic South Pole and the Amundsen–Scott South Pole Station. Temperature changes Cooling in East Antarctica during the decades of the 1980s and 1990s partially offset the impact of climate change on the West Antarctic Ice Sheet, which has warmed by more than 0.1 °C/decade in the last 50 years. The continent-wide average surface temperature trend of Antarctica is positive and statistically significant at >0.0 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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