Jelbart Ice Shelf

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Coordinates: 70°30′S4°30′W / 70.500°S 4.500°W / -70.500; -4.500 The Jelbart Ice Shelf is an ice shelf about 40 nautical miles (70 km) wide, fronting on the coast of Queen Maud Land, Antarctica, northward of Giaever Ridge. It was mapped by Norwegian cartographers from surveys and air photos by the Norwegian–British–Swedish Antarctic Expedition (1949–1952) and named for John E. Jelbart, an Australian observer with the expedition who drowned near Maudheim Station on February 24, 1951. [1]

Geographic coordinate system Coordinate system

A geographic coordinate system is a coordinate system that enables every location on Earth to be specified by a set of numbers, letters or symbols. The coordinates are often chosen such that one of the numbers represents a vertical position and two or three of the numbers represent a horizontal position; alternatively, a geographic position may be expressed in a combined three-dimensional Cartesian vector. A common choice of coordinates is latitude, longitude and elevation. To specify a location on a plane requires a map projection.

Queen Maud Land Norways territorial claim in Antarctica

Queen Maud Land is a c. 2.7 million square kilometre (1.04 million sq mi) region of Antarctica claimed as a dependent territory by Norway. The territory lies between 20° west and 45° east, between the claimed British Antarctic Territory to the west and the similarly claimed Australian Antarctic Territory to the east. On most maps there had been an unclaimed area between Queen Maud Land's borders of 1939 and the South Pole until 12 June 2015 when Norway formally annexed that area. Positioned in East Antarctica, the territory comprises about one-fifth of the total area of Antarctica. The claim is named after the Norwegian queen Maud of Wales (1869–1938).

Giaever Ridge is a broad, snow-covered ridge, about 70 nautical miles (130 km) long in a north-south direction, on the west side of Schytt Glacier in Queen Maud Land, Antarctica. It was mapped by Norwegian cartographers from surveys and air photos by the Norwegian–British–Swedish Antarctic Expedition (1949–52) and named for John Schjelderup Giæver, leader of the expedition.

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Bay of Whales Bay

The Bay of Whales was a natural ice harbor, or iceport, indenting the front of Ross Ice Shelf just north of Roosevelt Island, Antarctica. It is the southernmost point of open ocean not only of the Ross Sea, but worldwide. The Ross Sea extends much further south—as far as the Gould Coast, some 200 miles (320 km) from the South Pole—but most of that area is covered by the Ross Ice Shelf rather than open sea.

Denman Glacier glacier in Antarctica

Denman Glacier is a glacier 7 to 10 nautical miles wide, descending north some 70 nautical miles, which debouches into the Shackleton Ice Shelf east of David Island, Queen Mary Land. It was discovered in November 1912 by the Western Base party of the Australasian Antarctic Expedition under Sir Douglas Mawson. Mawson named the glacier for Lord Denman, Governor-General of Australia in 1911, a patron of the expedition.

Fimbul Ice Shelf ice shelf in Antarctica

The Fimbul Ice Shelf is an ice shelf about 200 km (120 mi) long and 100 km (62 mi) wide, nourished by Jutulstraumen Glacier, bordering the coast of Queen Maud Land from 3°W to 3°E. It was photographed from the air by the Third German Antarctic Expedition (1938–39), mapped by Norwegian cartographers from surveys and air photos by the Norwegian–British–Swedish Antarctic Expedition (1949–1952) and from air photos by the Norwegian expedition (1958–59) and named Fimbulisen.

Fallières Coast

The Fallières Coast is that portion of the west coast of the Antarctic Peninsula between the head of Bourgeois Fjord and Cape Jeremy and lies on Marguerite Bay and the Wordie Ice Shelf. On the south it is joined by Rymill Coast, and in the north by Loubet Coast. Fallières Coast was first explored in January 1909 by the French Antarctic Expedition under J.B. Charcot, who named it for Armand Fallières, then President of France.

Unneruskollen Island is an ice-covered island lying north of Halvfarryggen Ridge and between Ekstrom Ice Shelf and Jelbart Ice Shelf, on the coast of Queen Maud Land. First mapped by the Norwegian-British-Swedish Antarctic Expedition (NBSAE) (1949-1952), led by John Schjelderup Giæver, it was named Unneruskollen by the Norwegian Antarctic Expedition, 1956-60.

Ahlmann Ridge, also known as Ahlmannryggen, is a broad, mainly ice-covered ridge, about 110 km (70 mi) long, surmounted by scattered, low peaks. It rises between Schytt Glacier and Jutulstraumen Glacier and extends from Borg Massif northward to Fimbul Ice Shelf in Queen Maud Land. The area was first photographed from aircraft of the Third German Antarctic Expedition (1938–39) and peaks in this vicinity were roughly plotted. The Stein Nunataks and Witte Peaks, named by the German Antarctic Expedition, appear to coincide with the northeast part of the Ahlmann Ridge. The feature was mapped in detail from surveys and air photos by the Norwegian-British-Swedish Antarctic Expedition (NBSAE) (1949–1952) and air photos by the Norwegian expedition (1958–59). Named for Hans Wilhelmsson Ahlmann, chairman of the Swedish committee for the NBSAE.

Schytt Glacier glacier in Antarctica

Schytt Glacier is a broad glacier about 60 miles (100 km) long, flowing northward between Giaever and Ahlmann Ridge in Queen Maud Land to the Jelbart Ice Shelf. Mapped by Norwegian cartographers from surveys and air photos by the Norwegian-British-Swedish Antarctic Expedition (NBSAE) (1949–1952) and named for Stig V. Schytt, second in command and glaciologist of NBSAE.

Le Couteur Glacier is a glacier, 15 nautical miles (28 km) long, which drains the northwest slopes of Mount Hall and Mount Daniel and flows north along the west side of the Lillie Range to the Ross Ice Shelf, Antarctica. It was named by the Southern Party of the New Zealand Geological Survey Antarctic Expedition (1963–64) for P. C. Le Couteur, a geologist with the New Zealand Federated Mountain Clubs Antarctic Expedition, 1962–63.

Jutulstraumen Glacier is a large glacier in Queen Maud Land, Antarctica, about 120 nautical miles (220 km) long, draining northward to the Fimbul Ice Shelf between the Kirwan Escarpment, Borg Massif and Ahlmann Ridge on the west and the Sverdrup Mountains on the east. It was mapped by Norwegian cartographers from surveys and air photos by the Norwegian–British–Swedish Antarctic Expedition (1949–52) and air photos by the Norwegian expedition (1958–59) and named Jutulstraumen. More specifically jutulen are troll-like figures from Norwegian folk tales. The ice stream reaches speeds of around 4 metres per day near the coast where it is heavily crevassed.

Kainan Bay

Kainan Bay is an iceport which indents the front of the Ross Ice Shelf about 37 nautical miles (70 km) northeast of the northwestern end of Roosevelt Island, Antarctica. It was discovered in January 1902 by the British National Antarctic Expedition under Robert Falcon Scott. It was named by the Japanese Antarctic Expedition under Lieutenant Shirase Nobu which, in January 1912, effected a landing on the ice shelf here from the ship Kainan Maru. Little America V, the main base of U.S. Navy Operation Deep Freeze, 1955–56, was established at this site in late December 1955.

Båkenesdokka Valley is an ice-filled valley at the east side of Roberts Knoll, draining north to Jelbart Ice Shelf in Queen Maud Land. It was mapped by Norwegian cartographers from surveys and from air photos by the Norwegian-British-Swedish Antarctic Expedition (1949–52) and named "Båkenesdokka".

Blåskimen Island

Blåskimen Island is a high, ice-covered island about 15 kilometres (8 nmi) north of Novyy Island, at the juncture of the Jelbart Ice Shelf and the Fimbul Ice Shelf, Queen Maud Land. The island rises about 300 metres (1,000 ft) above the general level of the ice shelf and is surrounded by this ice, except for the north side which borders the sea. The feature was roughly delineated by Norwegian cartographers working with air photos taken by the Norwegian–British–Swedish Antarctic Expedition in 1951–52 and the Sixth Norwegian Antarctic Expedition in 1958–59. They called the island Blåskimen and included the area now called Novyy Island. The Soviet Antarctic Expedition mapped the feature in 1961 and showed it to be separated from Novyy Island.

Coloured Peak is a peak, 660 metres (2,170 ft) high, near the head of Ross Ice Shelf in the coastal foothills of the Queen Maud Mountains, about 2 nautical miles (4 km) southeast of O'Brien Peak. It was mapped by the United States Geological Survey from surveys and from U.S. Navy air photos, 1960–64. The peak was examined by members of the New Zealand Geological Survey Antarctic Expedition, 1969–70, and so named because of the colorful yellow, pink and brown banded strata that mark the feature.

Entuziasty Glacier glacier in Antarctica

Entuziasty Glacier is a broad outlet glacier of Queen Maud Land, flowing generally northward into the Lazarev Ice Shelf. It is nourished in its upper reaches by ice draining from the Hoel Mountains and the northeast end of the Wohlthat Mountains, and its tributaries include the Mushketov Glacier. The lower part of the glacier, particularly the relationship with the Mushketov Glacier, was first delineated by the Soviet Antarctic Expedition in 1961. They named it "Lednik Entuziastov".

Novyy Island

Novyy Island is the larger and southern island of two similar ice covered features that serve to delimit the Jelbart and Fimbul Ice Shelves, on the coast of Queen Maud Land. The summit of this feature rises about 250 m above the surrounding ice shelf. The island was partly delineated by the Norwegian Antarctic Expedition, 1956-60. It was mapped by the Soviet Antarctic Expedition in 1961 and named "Kupol Novyy".

Cape Krasinskiy is a projecting angle of the ice shelf fringing the coast of Queen Maud Land, Antarctica, separating Dublitskiy Bay and Kamenev Bight. The feature was photographed from the air by the Sixth Norwegian Antarctic Expedition in 1958–59 and was mapped from these photos. It was also mapped in 1961 by the Soviet Antarctic Expedition who named it for G.D. Krasinskiy, a polar investigator and organizer of air expeditions.

Glaciologist Bay is an ice-filled bay about 25 nautical miles (46 km) long in the southwest part of the Jelbart Ice Shelf along the coast of Queen Maud Land, Antarctica. It was mapped by Norwegian cartographers from surveys and air photos by Norwegian–British–Swedish Antarctic Expedition (1949–52) and named "Glasiologbukta".

Halvfarryggen Ridge is a broad snow-covered ridge separating the Ekström Ice Shelf and the Jelbart Ice Shelf, on the coast of Queen Maud Land, Antarctica. It was first mapped by the Norwegian–British–Swedish Antarctic Expedition, 1949–52. They referred to the feature as "Isrygg", but it was subsequently named Halvfarryggen by the Sixth Norwegian Antarctic Expedition, 1956–60.

Leningradskiy Bay is an indentation in the ice shelf fringing Queen Maud Land, Antarctica, immediately west of Lazarev Ice Shelf. Leningradskiy Island is at the head of the bay. It was mapped by the Soviet Antarctic Expedition in 1959 and named by them for the Russian city that at that time was named Leningrad.

Morris Glacier is a glacier in Antarctica, 10 nautical miles (19 km) long, which drains north from Mount Daniel to the Ross Ice Shelf between the Lillie Range and Clark Spur. It was named by the southern party of the New Zealand Geological Survey Antarctic Expedition of 1963–64 for Commander Marion E. Morris, U.S. Navy, Executive Officer of Squadron VX-6, who piloted the aircraft which flew the party's reconnaissance.

References

PD-icon.svg This article incorporates  public domain material from the United States Geological Survey document "Jelbart Ice Shelf" (content from the Geographic Names Information System ).

United States Geological Survey Scientific agency of the United States government

The United States Geological Survey is a scientific agency of the United States government. The scientists of the USGS study the landscape of the United States, its natural resources, and the natural hazards that threaten it. The organization has four major science disciplines, concerning biology, geography, geology, and hydrology. The USGS is a fact-finding research organization with no regulatory responsibility.

Geographic Names Information System geographical database

The Geographic Names Information System (GNIS) is a database that contains name and locative information about more than two million physical and cultural features located throughout the United States of America and its territories. It is a type of gazetteer. GNIS was developed by the United States Geological Survey in cooperation with the United States Board on Geographic Names (BGN) to promote the standardization of feature names.