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Ellef Ringnes Island is one of the Sverdrup Islands in Qikiqtaaluk Region, Nunavut, Canada. Also a member of the Queen Elizabeth Islands and Canadian Arctic Archipelago, it is located in the Arctic Ocean, east of Borden Island, and west of Amund Ringnes Island. It has an area of , making it the 69th largest island in the world (slightly larger than Jamaica) and Canada's 16th largest island. Its highest mount is . The island was named by Otto Sverdrup for Oslo brewer Ellef Ringnes, one of the sponsors of his expedition. It was first sighted by one of his men in 1901. The island was then claimed by Norway from 1902 until the claim was relinquished (in favour of Canada) in 1930. A High Arctic Weather Station (H.A.W.S.) called Isachsen lies on the west coast of the island. It was opened April 3, 1948 as part of a joint Canada-U.S. military effort to support a weather station network. When it closed on September 19, 1978, it was replaced with an automated weather system. The station represented the only known permanent human settlement of the island. Ellef Ringnes Island was the last landmass to be visited by the Earth's wandering Magnetic North Pole. In April and May 1994, Larry Newitt, of the Geological Survey of Canada, and Charles Barton, of the Australian Geological Survey Organization, conducted a survey to determine the average position of the North Magnetic Pole at that time. They established a temporary magnetic observatory on Lougheed Island, close to the predicted position of the pole. They determined that the average position of the North Magnetic Pole in 1994 was located on the Noice Peninsula, southwest Ellef Ringnes Island, at 78.3° N, 104.0° W. The pole shifted from the island that year and now lies some 250 miles (400 km) to the NNW.〔(Geomagnetism : North Magnetic Pole ) , (Geological Survey of Canada ). 〕 The island is also the location and namesake of an episode of The Secret Saturdays. == History == The first known sighting of Ellef Ringnes Island was in 1901 by a sledging party consisting of Gunerius Isachsen and Sverre Hassel. Members of the Second Norwegian Arctic Expedition of 1898–1902, which was under the command of Otto Sverdrup. The island was named to honour Ellef Ringnes, one of the principal patrons of the expedition. At the time of the discovery of Ellef Ringnes Island, the expedition was based at Goose Fiord on the south coast of Ellesmere Island. Isachsen and Hassel made their initial sighting of Ellef Ringnes Island on April 23 as they rounded the southwest corner of Amund Ringnes Island, an island they had sighted and partly explored the previous year. The following day, Isachsen and Hassel traveled across Hassel Sound making a landfall at the southern extremity of the island. In the course of the following 20 days, they succeeded in circumnavigating Ellef Ringnes. The resulting map and notes on geological specimens are published in Otto Sverdrup's narrative New Land (1904).〔Stott, Donald F. Ellef Ringnes Island, Canadian Arctic Archipelago. (): Dept. of Energy, Mines and Resources, 1969〕 In 1948. the federal Department of Transport and the United States Weather Bureau jointly established a meteorological station at Isachsen. The station was in operation for thirty years. Drilling took place on the island in the seventies by Panarctic Oils. 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「Ellef Ringnes Island」の詳細全文を読む スポンサード リンク
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