…The main feature of the average horizontal circulation in the Northern Hemisphere winter is the presence of low pressure systems centered near the North Pole and high pressure systems centered over the Aleutian Islands at high latitudes. The former is called the polar night vortex, and the latter the Aleutian high. A jet stream exists in the westerly wind belt that forms the polar night vortex, and the wind speed is particularly strong between the polar night vortex and the Aleutian high. … *Some of the terms that refer to the "Aleutian High" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…北半球冬季における平均的な水平循環の大きな特徴は,北極付近に中心をもつ低気圧とアレウト(アリューシャン)列島の上空に中心をもつ高気圧が高緯度に存在することである。前者を極夜渦,後者をアリューシャン高気圧という。極夜渦を形成する偏西風帯の中にはジェット気流が存在し,極夜渦とアリューシャン高気圧の間では特に風速が強い。… ※「アリューシャン高気圧」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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