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Fiftyone Glacier
Fiftyone Glacier is a large glacier flowing southwards, on the south side of Heard Island in the southern Indian Ocean. Its glacier terminus, 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 (Heard Island), 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 Australian Antarctic Names and Medals Committee, Antarctic Names Committee of Australia (ANCA) in 1964. References Further reading * * * External links *Clichereto see a map of Heard Island and McDonald Islands, including all major topographical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cirque
A (; from the Latin word ) is an amphitheatre-like valley formed by Glacier#Erosion, glacial erosion. Alternative names for this landform are corrie (from , 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 overdeepening, 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 (lake), tarn (small lake) behind a d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Winston Lagoon
Winston Lagoon () is a lagoon indenting the southeast coast of Heard Island in the southern Indian Ocean, about 1 nautical mile (1.9 km) northeast of Cape Lockyer. The feature is roughly portrayed on an American sealer chart of the 1860 period. It was sighted from the air by Lieutenant Malcolm Smith, RAAF, pilot of the ANARE (Australian National Antarctic Research Expeditions) seaplane that made the first reconnaissance flight over the island in 1948. Lieutenant Smith proposed that it be named Lake Winston after his wife. In view of his death in an aircraft accident shortly afterward, this proposal was adopted by Australian Antarctic Names and Medals Committee The Australian Antarctic Names and Medals Committee (AANMC) was established to advise the Government of Australia, Government on names for features in the Australian Antarctic Territory and the subantarctic territory of Heard Island and the McDon ... (ANCA) with only a change of generic term. Heard Bodies of wate ... [...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 Australia: Antarctic Program#Australian Antarctic program, Australian Antarctic Program (AAP) administered for Australia by the Australian Antarctic Division (AAD). History Australia has had a long involvement in South Pole, 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 expedit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Long Beach (Heard Island)
Long Beach is a coastal city in southeastern Los Angeles County, California, United States. It is the 44th-most populous city in the United States, with a population of 451,307 as of 2022. A charter city, Long Beach is the 7th-most populous city in California, the 2nd-most populous city in Los Angeles County, and the largest city in California that is not a county seat. Incorporated in 1897, Long Beach lies in Southern California, in the southern part of Los Angeles County. Long Beach is approximately south of downtown Los Angeles, and is part of the Gateway Cities region. The Port of Long Beach is the second busiest container port in the United States and is among the world's largest shipping ports. The city is over an oilfield with minor wells both directly beneath the city as well as offshore. The city is known for its waterfront attractions, including the permanently docked and the Aquarium of the Pacific. Long Beach also hosts the Grand Prix of Long Beach, an IndyCar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cape Labuan
Cape Labuan () is a rocky point midway between Cape Arkona and Lavett Bluff, forming the southwest extremity of Heard Island. It was charted in 1948 by the Australian National Antarctic Research Expeditions The Australian National Antarctic Research Expeditions (ANARE ) is the historical name for the Australia: Antarctic Program#Australian Antarctic program, Australian Antarctic Program (AAP) administered for Australia by the Australian Antarctic D ... and named after , a relief ship for the expedition. References * Headlands of Heard Island and McDonald Islands {{Subantarctic-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deacock Glacier
Deacock Glacier () is a glacier close west of Lavett Bluff on the south side of Heard Island in the southern Indian Ocean. Its terminus is between Cape Labuan and Long Beach. To the east of Deacock Glacier is Fiftyone Glacier, whose terminus is located between Lavett Bluff and Lambeth Bluff. To the west of Deacock Glacier is Gotley Glacier, whose terminus is located between Cape Arkona and Cape Labuan. Discovery and naming Surveyed by ANARE (Australian National Antarctic Research Expeditions), 1948–63. 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 committe ... (ANCA) for W. Deacock, a member of ANARE on Heard Island in 1963. References Further reading * * * External links *Clichere to see a map of Heard Island and McDonald Islands, i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cape Lockyer
Cape Lockyer () is a steep rock headland northeast of Lambeth Bluff on the southeast side of Heard Island. It was surveyed in 1948 by Australian National Antarctic Research Expeditions and named by them for Lieutenant H.C.J. Lockyer, Royal Australian Naval Volunteer Reserve, one of the officers on HMAS Labuan (L3501), HMAS ''Labuan'', relief ship for the expedition. References Headlands of Heard Island and McDonald Islands {{Subantarctic-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 is a well-documented effects of climate change, effect of climate change. The retreat of Mountain glacier, mountain glaciers provides evidence for the Instrumental temperature record, ... [...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 they are in endless Glacier#Motion, 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indian Ocean
The Indian Ocean is the third-largest of the world's five oceanic divisions, covering or approximately 20% of the water area of Earth#Surface, Earth's surface. It is bounded by Asia to the north, Africa to the west and Australia (continent), Australia to the east. To the south it is bounded by the Southern Ocean or Antarctica, depending on the definition in use. The Indian Ocean has large marginal or regional seas, including the Andaman Sea, the Arabian Sea, the Bay of Bengal, and the Laccadive Sea. Geologically, the Indian Ocean is the youngest of the oceans, and it has distinct features such as narrow continental shelf, continental shelves. Its average depth is 3,741 m. It is the warmest ocean, with a significant impact on global climate due to its interaction with the atmosphere. Its waters are affected by the Indian Ocean Walker circulation, resulting in unique oceanic currents and upwelling patterns. The Indian Ocean is ecologically diverse, with important ecosystems such ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
