Orcadas Base
Encyclopedia
Base Orcadas is an Argentine
Argentina
Argentina , officially the Argentine Republic , is the second largest country in South America by land area, after Brazil. It is constituted as a federation of 23 provinces and an autonomous city, Buenos Aires...

 station in Antarctica, and the first permanent Antarctic station in the area defined by the Antarctic Treaty System
Antarctic Treaty System
The Antarctic Treaty and related agreements, collectively called the Antarctic Treaty System or ATS, regulate international relations with respect to Antarctica, Earth's only continent without a native human population. For the purposes of the treaty system, Antarctica is defined as all of the land...

. It is located on Laurie Island
Laurie Island
Laurie Island is an island in the Antarctic Circle, the second largest of the South Orkney Islands. The island is claimed by both Argentina as part of Argentine Antarctica, and the United Kingdom as part of the British Antarctic Territory...

, one of the South Orkney Islands
South Orkney Islands
The South Orkney Islands are a group of islands in the Southern Ocean, about north-east of the tip of the Antarctic Peninsula. They have a total area of about ....

 , at 4 metres (13.1 ft) above sea level and 170 metres (558 ft) from the coastline.

Background

The nearest port is the Argentine city of Ushuaia
Ushuaia
Ushuaia may refer to the following:*Ushuaia, a city in Argentina.**Ushuaia Department, an administrative division**Ushuaia River**Ushuaia International Airport**Colegio Nacional de Ushuaia, National School of Ushuaia....

, which is 1502 km (933 mi) away. The base has 11 buildings and four main topics of research: continental glaciology, seismology, sea-ice-zone glaciology (since 1985) and meteorological observations (since 1903).

In 1903 Dr William S. Bruce
William Speirs Bruce
William Speirs Bruce was a London-born Scottish naturalist, polar scientist and oceanographer who organised and led the Scottish National Antarctic Expedition to the South Orkney Islands and the Weddell Sea. Among other achievements, the expedition established the first permanent weather station...

's Scottish National Antarctic Expedition
Scottish National Antarctic Expedition
The Scottish National Antarctic Expedition , 1902–04, was organised and led by William Speirs Bruce, a natural scientist and former medical student from the University of Edinburgh. Although overshadowed in prestige terms by Robert Falcon Scott's concurrent Discovery Expedition, the SNAE completed...

 established Omond House, a meteorological station on Laurie Island. During the expedition, however, the crew became stuck in the ice and, unable to sail off, were trapped in the station for the winter.

Bruce left the station in December of that year for Buenos Aires
Buenos Aires
Buenos Aires is the capital and largest city of Argentina, and the second-largest metropolitan area in South America, after São Paulo. It is located on the western shore of the estuary of the Río de la Plata, on the southeastern coast of the South American continent...

 to fix the ship, leaving a few men to continue keeping observations.

Since February 22, 1904, Argentina has kept a permanently populated base there, one of six Argentine permanent bases in Argentina's claim to Antarctica
Argentine Antarctica
Argentine Antarctica is a sector of Antarctica claimed by Argentina as part of its national territory. The Argentine Antarctic region, consisting of the Antarctic Peninsula and a triangular section extending to the South Pole, is delimited by the 25° West and 74° West meridians and the 60° South...

, and the first permanently inhabited base in Antarctica.

Orcadas was the only station on the islands for 40 years until the British established a small summer base. It also had the first radiotelegraph in the continent (in 1927). The 11 buildings of the station house up to 45 people during the summer, and an average of 14 during winter.

External links

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