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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Early 2014 North American cold wave ： ウィキペディア英語版 Early 2014 North American cold wave The 2014 North American cold wave was an extreme weather event extending from January to April 2014, and was also part of an unusually cold winter affecting parts of Canada and the Eastern United States. The event occurred in early 2014 and was caused by a southward shift of the North Polar Vortex. Record low temperatures also extended well into March. On January 2, an Arctic cold front initially associated with a nor'easter tracked across Canada and the United States, resulting in heavy snowfall. Temperatures fell to unprecedented levels, and low temperature records were broken across the United States. Business, school, and road closures were common, as well as mass flight cancellations. Altogether, more than 200 million people were affected, in an area ranging from the Rocky Mountains to the Atlantic Ocean and extending south to include roughly 187 million residents of the Continental United States. ==Origins== Beginning on January 2, 2014, sudden stratospheric warming (SSW) led to the breakdown of the regular polar vortex and subsequent southward movement of tropospheric Arctic air. According to the UK Met Office, the jet stream deviated to the south (bringing cold air with it) as a result of unusual contrast between cold air in Canada and mild winter temperatures in the United States.〔 This produced significant wind where the air masses met, leading to bitter wind chills and worsening the impacts of the record cold temperatures.〔(【引用サイトリンク】title=Freezing US – Is the Polar Vortex to Blame? )〕 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「Early 2014 North American cold wave」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.