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Ablation Valley
Ablation Valley, also known as Ablation Bay, is a mainly ice-free valley on the east coast of Alexander Island, long, which is entered immediately south of Ablation Point, opens on George VI Sound and lies immediately north of Ganymede Heights. It was first photographed from the air on 23 November 1935 by Lincoln Ellsworth and mapped from these photographs by W.L.G. Joerg. It was first visited and surveyed in 1936 by the British Graham Land Expedition (BGLE), and given the name "Ablation" by them because of the relatively small amounts of snow and ice found there. The site lies within Antarctic Specially Protected Area (ASPA) No.147.
==Climate==
The climate of the area is affected by easterly-moving cyclonic depressions of the Southern Ocean. These depressions make the weather relatively mild; bring strong northerly winds and a heavy cloud cover to the region. The climate is also characterized by continental north to northwesterly flow of cold anticyclone air from the West Antarctic Ice Sheet. This flow brings clear, cold and stable conditions, relatively light winds from the south, and negative temperatures. The mean summer temperature recorded in the early 1970s was estimated as just below 0°C (32°F). The mean annual temperature was estimated at around -9°C (16°F) in the same time period. There is also a little snow falling in summer. The area is mostly free of snow by the end of summer.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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