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Seven sovereign states – Argentina, Australia, Chile, France, New Zealand, Norway, and the United Kingdom – have made eight territorial claims in Antarctica.These countries have tended to place their Antarctic scientific observation and study facilities within their respective claimed territories; however, a number of such facilities are located outside of the area claimed by their ...
It comprises the region south of 60°S latitude and between longitudes 20°W and 80°W, forming a wedge shape that extends to the South Pole, overlapped by the Antarctic claims of Argentina (Argentine Antarctica) and Chile (Chilean Antarctic Territory). The claim to the region has been suspended since the Antarctic Treaty came into force in 1961.
West Antarctica and Marie Byrd Land have elevations of up to 1.5 to 2 kilometers on the surface of the WAIS. In contrast, East Antarctica has interior elevations on its ice sheet of over 4 kilometers. [38] The West Antarctic Rift System (WARS [39]) that evolved over the last hundred million years, includes all or part of Marie Byrd Land. [40]
Its west coast from the tip of the Antarctic Peninsula south to 68° S, which has a maritime Antarctic climate, is the mildest part of the Antarctic Peninsula. Within this part of the Antarctic Peninsula, temperatures exceed 0 °C (32 °F) for 3 or 4 months during the summer, and rarely fall below −10 °C (14 °F) during the winter.
The glacier flowing from the Pensacola Mountains onto the Filchner–Ronne Ice Shelf. On the occasion of a visit by Queen Elizabeth II to the British Foreign and Commonwealth Office in London on 18 December 2012, it was announced there that a 437,000-square-kilometre (169,000 sq mi) area of the British Antarctic Territory had been named Queen Elizabeth Land after The Queen. [3]
The Ross Dependency is a region of Antarctica defined by a sector originating at the South Pole, passing along longitudes 160° east to 150° west, and terminating at latitude 60° south. It is claimed by New Zealand , a claim mutually accepted only by Australia , the UK , France and Norway , which are countries that also have territorial ...
Argentine Antarctica (Spanish: Antártida Argentina or Sector Antártico Argentino) [4] is an area on Antarctica claimed by Argentina as part of its national territory. It consists of the Antarctic Peninsula and a triangular section extending to the South Pole, delimited by the 25° West and 74° West meridians and the 60° South parallel. [5]
West Antarctica is covered by the West Antarctic Ice Sheet. There has been some concern about this ice sheet, as there is a small chance it will collapse due to rising temperatures in the region. If it does, global ocean levels will rise by a few metres in a short period of time. [citation needed]