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Pobeda Ice Island : ウィキペディア英語版 | Pobeda Ice Island
Pobeda Ice Island, original Russian name остров Победы (остров = ''Island'', Победа = ''Victory'', meaning Pobeda Island or Victory Island), is an ''ice island'' in the Mawson Sea. It is located off the coast of Queen Mary Land, Australian Antarctic Territory, East Antarctica. This island, which exists periodically, is formed by the running aground of a tabular iceberg. == Periodic Formation == The ice island is created and vanishes periodically. It is created by the calving of an enormous block of ice from Denman Glacier, located in the eastern part of Shackleton Ice Shelf. The resulting tabular iceberg drifts northwest until it runs aground upon a shoal north of the ice shelf. The iceberg remains locked in this position there for a decade or more, until has remodeled enough to free itself from the shoal. It then drifts into the open ocean, where it breaks into fragments. These iceberg fragments eventually melt as they drift into warmer waters. The floating tongue of the Denman Glacier, fed by ice from the interior of Antarctica, advances until a new large berg is calved about every 40 to 50 years.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Pobeda Ice Island」の詳細全文を読む
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