![]() ![]() The ice surface dramatically grows in size from about three million square kilometers (1.2 million square miles) at the end of summer to about 19 million square kilometers (7.3 million square miles) by winter. This ice sheet even extends beyond the continent when snow and ice are at their most extreme. It is the largest single piece of ice on Earth. Physical Geography Physical Features The Antarctic Ice Sheet dominates the region. The islands of the Antarctic region are: South Orkney Islands, South Shetland Islands, South Georgia, and the South Sandwich Islands, all claimed by the United Kingdom Peter I Island and Bouvet Island, claimed by Norway Heard and McDonald islands, claimed by Australia and Scott Island and the Balleny Islands, claimed by New Zealand. The Antarctic also includes island territories within the Antarctic Convergence. There are no countries in Antarctica, although seven nations claim different parts of it: New Zealand, Australia, France, Norway, the United Kingdom, Chile, and Argentina. (It is larger than both Oceania and Europe.) Antarctica is a unique continent in that it does not have a native human population. Antarctica is the fifth-largest continent in terms of total area. The Antarctic covers approximately 20 percent of the Southern Hemisphere. ![]() The Antarctic Convergence is an uneven line of latitude where cold, northward-flowing Antarctic waters meet the warmer waters of the world’s oceans. The Antarctic is a cold, remote area in the Southern Hemisphere encompassed by the Antarctic Convergence. The continent of Antarctica makes up most of the Antarctic region. ![]()
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