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Winston Glacier
Winston Glacier () is a glacier flowing to Winston Lagoon on the southeast side of Heard Island in the southern Indian Ocean. Its terminus is at Winston Lagoon, between Cape Lockyer and Oatt Rocks. To the northeast of Winston Glacier is Stephenson Glacier, the terminus of which is located between Dovers Moraine and Stephenson Lagoon. To the southwest of Winston Glacier is Fiftyone Glacier, whose terminus is located between Lavett Bluff and Lambeth Bluff. Discovery and naming Winston Glacier was surveyed by through the Australian National Antarctic Research Expeditions in 1948. It was named by Antarctic Names Committee of Australia in 1964 in association with nearby Winston Lagoon. See also * List of glaciers in the Antarctic *Retreat of glaciers since 1850 The retreat of glaciers since 1850 affects the availability of fresh water for irrigation and domestic use, mountain recreation, animals and plants that depend on glacier-melt, and, in the longer term, the level of the o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cirque
A (; from the Latin word ') is an amphitheatre-like valley formed by glacial erosion. Alternative names for this landform are corrie (from Scottish Gaelic , meaning a pot or cauldron) and (; ). A cirque may also be a similarly shaped landform arising from fluvial erosion. The concave shape of a glacial cirque is open on the downhill side, while the cupped section is generally steep. Cliff-like slopes, down which ice and glaciated debris combine and converge, form the three or more higher sides. The floor of the cirque ends up bowl-shaped, as it is the complex convergence zone of combining ice flows from multiple directions and their accompanying rock burdens. Hence, it experiences somewhat greater erosion forces and is most often overdeepened below the level of the cirque's low-side outlet (stage) and its down-slope (backstage) valley. If the cirque is subject to seasonal melting, the floor of the cirque most often forms a tarn (small lake) behind a dam, which marks the down ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dovers Moraine
Dovers Moraine () is a band of coarse glacial moraine, extending in a north–south direction for 1.5 nautical miles (3 km), deposited at the east end of the main mass of Heard Island immediately east of Stephenson Glacier. It was surveyed in 1948 by the Australian National Antarctic Research Expeditions, and named by them for Robert G. Dovers, geologist and chief surveyor with the party. Small settlements were occupied near both ends of this morainal belt by American sealers engaged in the extraction of oil from elephant seal Elephant seals are very large, oceangoing earless seals in the genus ''Mirounga''. Both species, the northern elephant seal (''M. angustirostris'') and the southern elephant seal (''M. leonina''), were hunted to the brink of extinction for oil ...s during the 1858–82 period. References Moraines of Antarctica {{Subantarctic-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Glaciers In The Antarctic
There are many glaciers in the Antarctic. This set of lists does not include ice sheets, ice caps or ice fields, such as the Antarctic ice sheet, but includes glacial features that are defined by their flow, rather than general bodies of ice. The lists include outlet glaciers, valley glaciers, cirque glaciers, tidewater glaciers and ice streams. Ice streams are a type of glacier and many of them have "glacier" in their name, e.g. Pine Island Glacier. Ice shelves are listed separately in the List of Antarctic ice shelves. For the purposes of these lists, the Antarctic is defined as any latitude further south than 60° (the continental limit according to the Antarctic Treaty System). List by letters * List of glaciers in the Antarctic: A–H * List of glaciers in the Antarctic: I–Z See also * List of Antarctic and subantarctic islands * List of Antarctic ice rises * List of Antarctic ice shelves * List of Antarctic ice streams * List of glaciers * List of subantar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antarctic Names Committee Of Australia
The Australian Antarctic Names and Medals Committee (AANMC) was established to advise the Government on names for features in the Australian Antarctic Territory and the subantarctic territory of Heard Island and the McDonald Islands. The committee also issues nominations Governor General for the award of the Australian Antarctic Medal. Committee members were appointed by the Minister or Parliamentary Secretary responsible for Antarctic matters. The committee was founded in 1952 as the Antarctic Names Committee of Australia, and changed to the current name in 1982 to reflect the multiple functions that the committee is responsible for. The committee was replaced by the Australian Antarctic Division Place names Committee in 2015. Features named by the committee * Fyfe Hills, named after W.V. Fyfe, Surveyor General of Western Australia * Goldsworthy Ridge, named after R.W. Goldsworthy, survey field assistant * Gowlett Peaks, named after Alan Gowlett, engineer * Haigh Nunatak, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australian National Antarctic Research Expeditions
The Australian National Antarctic Research Expeditions (ANARE ) is the historical name for the Australian Antarctic Program (AAp) administered for Australia by the Australian Antarctic Division (AAD). History Australia has had a long involvement in south polar regions since as early as Douglas Mawson's Australasian Antarctic Expedition in 1911. Further Australian exploration of the Antarctic continent was conducted during the British Australian and New Zealand Antarctic Research Expedition (BANZARE), which was conducted over the years 1929–1931. The Australian National Antarctic Research Expeditions were established in 1947 with expeditions to Macquarie Island and Heard Island. In 1948 the Australian Antarctic Division (AAD) was established to administer the expedition program. ANARE Name The name ANARE fell out of official use in the early 2000s. However current and former Australian Antarctic expeditioners continue to use the term informally as a means of identifica ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lambeth Bluff
Lambeth Bluff () is a rock coastal bluff at the end of South Barrier, on the east side of Fiftyone Glacier, on the south side of Heard Island The Territory of Heard Island and McDonald Islands (HIMI) is an Australian external territory comprising a volcanic group of mostly barren Antarctic islands, about two-thirds of the way from Madagascar to Antarctica. The group's overall size .... It was surveyed in 1948 by the Australian National Antarctic Research Expeditions (ANARE) and named "Cape Lambeth" for A. James Lambeth, a geologist with the expedition. Further ANARE exploration led to revision of the name in 1964 to Lambeth Bluff. References Cliffs of Antarctica {{Subantarctic-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lavett Bluff
Lavett Bluff () is a rock bluff between Deacock Glacier and Fiftyone Glacier on the south side of Heard Island in the southern Indian Ocean. It was surveyed in 1948 by an Australian National Antarctic Research Expedition (ANARE) and named "Cape Lavett" for Lieutenant John L. Lavett, Royal Australian Navy The Royal Australian Navy (RAN) is the principal naval force of the Australian Defence Force (ADF). The professional head of the RAN is Chief of Navy (CN) Vice Admiral Mark Hammond AM, RAN. CN is also jointly responsible to the Minister of ..., one of the officers on HMAS ''Labuan'', the relief ship for the expedition. Further ANARE exploration led to revision of the name in 1964 to Lavett Bluff. References External links Map of Heard Island and McDonald Islands, including all major topographical features Cliffs of Antarctica Landforms of Heard Island and McDonald Islands {{Subantarctic-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fiftyone Glacier
Fiftyone Glacier is a large glacier flowing southwards, on the south side of Heard Island in the southern Indian Ocean. Its terminus is located between Lavett Bluff and Lambeth Bluff. To the northeast of Fiftyone Glacier is Winston Glacier, whose terminus is located at Winston Lagoon, between Cape Lockyer and Oatt Rocks. To the west of Fiftyone Glacier is Deacock Glacier, whose terminus is located between Cape Labuan and Long Beach. Discovery and naming Fiftyone Glacier was surveyed by ANARE ( Australian National Antarctic Research Expeditions) in 1948. It was named "The 1951 Glacier" by an ANARE party that made a traverse of Heard Island in 1951. The form Fiftyone Glacier was recommended by Antarctic Names Committee of Australia The Australian Antarctic Names and Medals Committee (AANMC) was established to advise the Government on names for features in the Australian Antarctic Territory and the subantarctic territory of Heard Island and the McDonald Islands. The commit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stephenson Lagoon
Stephenson is a medieval patronymic surname meaning "son of Stephen". The earliest public record is found in the county of Huntingdonshire in 1279. There are variant spellings including Stevenson. People with the surname include: *Ashley Stephenson (born 1982), Canadian hockey and baseball player *Ashley Stephenson (horticulturalist), Ashley Stephenson (1927–2021), British horticulturalist *Benjamin Stephenson (other), several people *Ben Stephenson, Anglo-American television executive *Chandler Stephenson (born 1994), Canadian ice hockey player *Charles Bruce Stephenson (1929–2001), American astronomer *D. C. Stephenson (1891–1966), American, Ku Klux Klan leader *Debra Stephenson (born 1972), British actress *Dwight Stephenson, American football player *Earl Stephenson (born 1947), American baseball pitcher *Gene Stephenson, American college baseball coach *George Stephenson (1781–1848), British mechanical engineer who created Stephenson's Rocket *George Robert S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stephenson Glacier
Stephenson Glacier () is a glacier close west of Dovers Moraine on the east side of Heard Island in the southern Indian Ocean. Its terminus is between Dovers Moraine and Stephenson Lagoon, with part of the glacier flowing to Doppler Hill and Sealers Beach. To the north of Stephenson Glacier is Brown Glacier, whose terminus is located at Brown Lagoon. To the southwest of Stephenson Glacier is Winston Glacier, whose terminus is located at Winston Lagoon, between Cape Lockyer and Oatt Rocks. Discovery and naming Stephenson Glacier was surveyed by ANARE ( Australian National Antarctic Research Expeditions) in 1948. It was named by Antarctic Names Committee of Australia The Australian Antarctic Names and Medals Committee (AANMC) was established to advise the Government on names for features in the Australian Antarctic Territory and the subantarctic territory of Heard Island and the McDonald Islands. The commit ... (ANCA) for P.J. Stephenson, ANARE geologist on Heard Island ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tidewater Glacier
The tidewater glacier cycle is the typically centuries-long behavior of tidewater glaciers that consists of recurring periods of advance alternating with rapid retreat and punctuated by periods of stability. During portions of its cycle, a tidewater glacier is relatively insensitive to climate change. Calving rate of tidewater glaciers While climate is the main factor affecting the behavior of all glaciers, additional factors affect calving (iceberg-producing) tidewater glaciers. These glaciers terminate abruptly at the ocean interface, with large pieces of the glacier fracturing and separating, or calving, from the ice front as icebergs. Climate change causes a shift in the equilibrium line altitude (ELA) of a glacier. This is the imaginary line on a glacier, above which snow accumulates faster than it ablates, and below which, the reverse is the case. This altitude shift, in turn, prompts a retreat or advance of the terminus toward a new steady-state position. However, this ch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glacier Terminus
A glacier terminus, toe, or snout, is the end of a glacier at any given point in time. Although glaciers seem motionless to the observer, in reality glaciers are in endless motion and the glacier terminus is always either advancing or retreating. The location of the terminus is often directly related to glacier mass balance, which is based on the amount of snowfall which occurs in the accumulation zone of a glacier, as compared to the amount that is melted in the ablation zone. The position of a glacier terminus is also impacted by localized or regional temperature change over time. Tracking Tracking the change in location of a glacier terminus is a method of monitoring a glacier's movement. The end of the glacier terminus is measured from a fixed position in neighboring bedrock periodically over time. The difference in location of a glacier terminus as measured from this fixed position at different time intervals provides a record of the glacier's change. A similar way of trac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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