Madigan Nunatak

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Madigan Nunatak ( 67°9′S143°21′E / 67.150°S 143.350°E / -67.150; 143.350 Coordinates: 67°9′S143°21′E / 67.150°S 143.350°E / -67.150; 143.350 ) is an isolated nunatak that rises above the continental ice 18 nautical miles (33 km) south of Cape Gray, Antarctica. It was discovered by the Australasian Antarctic Expedition (1911–14) under Douglas Mawson, who named it for Cecil T. Madigan, the meteorologist with the expedition. [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.

Nunatak Exposed, often rocky element of a ridge, mountain, or peak not covered with ice or snow within an ice field or glacier

A nunatak is an exposed, often rocky element of a ridge, mountain, or peak not covered with ice or snow within an ice field or glacier. They are also called glacial islands. Examples are natural pyramidal peaks. When rounded by glacial action, smaller rock promontories may be referred to as rognons.

Cape Gray is a rocky cape which forms the east side of the entrance to Commonwealth Bay, part of the George V Coast of Antarctica. The cape is actually a small rocky island which is joined to the icecap of the mainland by an ice ramp. It was discovered by the Australasian Antarctic Expedition (1911–14) under Douglas Mawson, who named it for Percival Gray, second officer on the expedition ship Aurora.

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Mello Nunatak is an isolated nunatak standing 7 nautical miles (13 km) east of Mount Staley in the Freyberg Mountains of Antarctica, in the northeastern part of Evans Névé. It was mapped by the United States Geological Survey from surveys and U.S. Navy air photos, 1960–64, and was named by the Advisory Committee on Antarctic Names for chief engineman Gerald L. Mello, U.S. Navy, petty officer in charge of Hallett Station, summer 1966–67, and a member of the McMurdo Station winter party of 1967.

The Melvold Nunataks are a group of small nunataks located 14 nautical miles (26 km) west of Mount Harding in the Grove Mountains of Antarctica. They were mapped by Australian National Antarctic Research Expeditions from air photos, 1956–60, and were named by the Antarctic Names Committee of Australia for C.D. Melvold, a radio officer at Mawson Station in 1962.

References

PD-icon.svg This article incorporates  public domain material from the United States Geological Survey document "Madigan Nunatak" (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.