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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 committee ... (ANCA) for W. Deacock, a member of ANARE on Heard Island in 1963. References Further reading * * * External links *Clichereto see a map of Heard Island and McDonald Islands, inclu ... [...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] |
Heard Island And McDonald Islands
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 is in area and it has of coastline. Discovered in the mid-19th century, the islands lie on the Kerguelen Plateau in the Indian Ocean and have been an Australian territory since 1947. They contain Australia's only two active volcanoes. The summit of one, Mawson Peak, is higher than any mountain in all other Australian states or territories, except Dome Argus, Mount McClintock and Mount Menzies in the Australian Antarctic Territory. The islands are among the most remote places on Earth: They are located about southwest of Perth, southwest of Cape Leeuwin, Australia, southeast of South Africa, southeast of Madagascar, north of Antarctica, and southeast of the Kerguelen Islands (part of French Southern and Antarctic Lands). The is ... [...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 Australian Antarctic Program (AAp) administered for Australia by the Australian Antarctic Division (AAD). History Australia has had a long involv ... 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] |
Long Beach (Heard Island)
Long Beach is a city in Los Angeles County, California. It is the 42nd-most populous city in the United States, with a population of 466,742 as of 2020. A charter city, Long Beach is the seventh-most populous city in California. 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 race and the Long Beach Pride Festival and Parade. California State University, Long Beach, one of the largest universities in California by enr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glacier
A glacier (; ) is a persistent body of dense ice that is constantly moving under its own weight. A glacier forms where the accumulation of snow exceeds its Ablation#Glaciology, ablation over many years, often Century, centuries. It acquires distinguishing features, such as Crevasse, crevasses and Serac, seracs, as it slowly flows and deforms under stresses induced by its weight. As it moves, it abrades rock and debris from its substrate to create landforms such as cirques, moraines, or fjords. Although a glacier may flow into a body of water, it forms only on land and is distinct from the much thinner sea ice and lake ice that form on the surface of bodies of water. On Earth, 99% of glacial ice is contained within vast ice sheets (also known as "continental glaciers") in the polar regions, but glaciers may be found in mountain ranges on every continent other than the Australian mainland, including Oceania's high-latitude oceanic island countries such as New Zealand. Between lati ... [...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] |
Indian Ocean
The Indian Ocean is the third-largest of the world's five oceanic divisions, covering or ~19.8% of the water on Earth's surface. It is bounded by Asia to the north, Africa to the west and Australia to the east. To the south it is bounded by the Southern Ocean or Antarctica, depending on the definition in use. Along its core, the Indian Ocean has some large marginal or regional seas such as the Arabian Sea, Laccadive Sea, Bay of Bengal, and Andaman Sea. Etymology The Indian Ocean has been known by its present name since at least 1515 when the Latin form ''Oceanus Orientalis Indicus'' ("Indian Eastern Ocean") is attested, named after Indian subcontinent, India, which projects into it. It was earlier known as the ''Eastern Ocean'', a term that was still in use during the mid-18th century (see map), as opposed to the ''Western Ocean'' (Atlantic Ocean, Atlantic) before the Pacific Ocean, Pacific was surmised. Conversely, Ming treasure voyages, Chinese explorers in the Indian Oce ... [...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] |
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] |
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] |
Gotley Glacier
Gotley Glacier is a well-defined glacier, long, descending from the ice-covered slopes of the Big Ben massif to the southwest side of Heard Island in the southern Indian Ocean. Its terminus is located between Cape Arkona and Cape Labuan. To the east of Gotley Glacier is Deacock Glacier, whose terminus is located between Cape Labuan and Long Beach. To the northwest of Gotley Glacier is Lied Glacier, whose terminus is located between Cape Arkona and Cape Pillar. Cape Arkona separates Gotley Glacier from Lied Glacier. Discovery and naming Gotley Glacier was surveyed in 1948 by the 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 involv ..., and named by them for Aubrey V. Gotley, meteorologist and officer-in-charge of the party. Referen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cape Arkona (Heard Island)
Cape Arkona is a rocky headland between the mouths of Lied Glacier and Gotley Glacier on the southwest side of Heard Island in the southern Indian Ocean. The feature appears to be roughly charted on an 1860 sketch map prepared by Captain H.C. Chester, an American sealer operating in the area during this period. The German frigate ''Arkona'' (named after a cape on the north of Rügen) (Captain von Reibnitz) examined the south coast of the island in February 1874 and, in Melbourne, provided the officers of with a position for the cape which was used in preparation of the Admiralty Admiralty most often refers to: *Admiralty, Hong Kong *Admiralty (United Kingdom), military department in command of the Royal Navy from 1707 to 1964 *The rank of admiral *Admiralty law Admiralty can also refer to: Buildings * Admiralty, Traf ... chart. In so doing, however, the misspelling "Cape Arcona" was used on the British chart. Map [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
