Bradley Nunatak

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Bradley Nunatak ( 81°24′S85°58′W / 81.400°S 85.967°W / -81.400; -85.967 Coordinates: 81°24′S85°58′W / 81.400°S 85.967°W / -81.400; -85.967 ) is a prominent nunatak standing 10 nautical miles (19 km) southwest of Mount Tidd in the Pirrit Hills, Marie Byrd Land. The peak was positioned by the U.S. Ellsworth-Byrd Traverse Party on December 7, 1958, and named for Rev. Edward A. Bradley, S.J., seismologist with the party. [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.

Mount Tidd is a prominent rock peak which is the highest summit in Pirrit Hills. The peak was positioned by the U.S. Ellsworth-Byrd Traverse Party on December 10, 1958. It was named by the Advisory Committee on Antarctic Names (US-ACAN) for Lieutenant Paul Tidd of the U.S. Navy, who was the Officer-in-Charge of Ellsworth Station in 1958.

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Kelley Nunatak is a nunatak on the north side of Leverett Glacier in Antarctica, 12 nautical miles (22 km) northeast of Mount Gould. It was mapped by the United States Geological Survey from ground surveys and U.S. Navy air photos, 1960–63, and was named by the Advisory Committee on Antarctic Names for Herbert O. Kelley, a radioman with the Byrd Station winter party in 1958.

References

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