Base General Bernardo O'Higgins Riquelme

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Map with station at location marked "C"
Base General Bernardo O'Higgins inauguration.
GARS

Base General Bernardo O'Higgins Riquelme, also Base Libertador General Bernardo O'Higgins Riquelme, or shortly Bernardo O'Higgins, named after Bernardo O'Higgins is a permanently staffed Chilean research station in Antarctica and the capital of Antártica Commune. It is lies at 63°19′15″S 57°53′55″W / 63.32083°S 57.89861°W / -63.32083; -57.89861, at an elevation of 13 m, about 30 km south-west of Prime Head, the northernmost point of the Antarctic Peninsula, at Cape Legoupil.

History[edit]

The base was established on 18 February 1948 by the Chilean Antarctic Expedition, and is one of the Antarctic bases with the longest times of continuous operation. The winter population is 16, and the peak population in the Antarctic summer is usually 44, although up to 60 persons can be accommodated. The base is operated by the Chilean Army. It is also known as Puerto Covadonga after the port on which it is located.[1]

The German Antarctic Receiving Station (GARS) was established at O'Higgins in 1991 by the DLR. It is a satellite ground station sited in Antarctica to enable reception of data from satellite-based sensors within the south polar region that might otherwise be lost. High bandwidth sensors such as SAR generate too much data to be stored on board the satellite for transmission to ground stations elsewhere. GARS was sited at O'Higgins because of the geology, infrastructure and accessibility of the base.

Historic site[edit]

The O’Higgins Historic Site on Cape Legoupil comprises structures of historical significance:

  • The original base was established on 18 February 1948 by the President of the Republic of Chile, Gabriel González Videla, the first head of state in the world to visit Antarctica.
  • The Capitán General Bernardo O ́Higgins Riquelme Bust was erected in 1948 opposite the base.
  • A plaque was erected on 12 August 1957 in memory of Lieutenants Oscar Inostroza Contreras and Sergio Ponce Torrealba.
  • The Virgen del Carmen Grotto, near the base, was built in the early 1970s to serve as a place of spiritual withdrawal for the staff of various Antarctic stations and expeditions.

It was designated a Historic Site or Monument (HSM 37), following a proposal by Chile to the Antarctic Treaty Consultative Meeting.[2]

Climate[edit]

Bernardo O'Higgins Base experiences a cold-polar climate (Köppen ET). Average annual precipitation amounts to 771 mm (30.35 in), and is distributed fairly evenly throughout the year, typically peaking marginally during the austral spring. Temperatures are frigid all year-round; the warmest month is January with an average monthly temperature of 1 °C (34 °F), while the coldest month is July with an average monthly temperature of −9 °C (16 °F).

Climate data for Bernardo O'Higgins Base (Chile), Antarctica
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Daily mean °C (°F) 0.5
(32.9)
0.1
(32.2)
−1.4
(29.5)
−4.1
(24.6)
−6.3
(20.7)
−8.0
(17.6)
−8.5
(16.7)
−8.4
(16.9)
−5.6
(21.9)
−3.5
(25.7)
−1.7
(28.9)
0.1
(32.2)
−3.9
(25)
Precipitation mm (inches) 28.9
(1.138)
64.0
(2.52)
74.1
(2.917)
78.0
(3.071)
66.7
(2.626)
50.7
(1.996)
65.5
(2.579)
67.2
(2.646)
87.7
(3.453)
87.1
(3.429)
61.9
(2.437)
38.7
(1.524)
770.5
(30.335)
 % humidity 81 84 83 81 84 82 82 81 82 81 80 81 82
Source: NOAA[3]

References[edit]

External links[edit]