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2014 South-Eastern Australian heatwave : ウィキペディア英語版 | 2014 South-Eastern Australian heatwave The 2014 South-Eastern Australian Heatwave was a prolonged period of time in which highly unseasonal weather was recorded across the south and south-eastern corridor of mainland Australia. The heatwave commenced during early May, and was the longest ever recorded in Australia's modern history, lasting in some places up to 15 days. Sydney, Melbourne and Adelaide were most hard hit, with temperatures in these areas breaking late Autumn records and causing a distinct lack of precipitation, especially in Sydney, Australia's most populous city. The cause of this phenomenon was a large blocking High pressure system situated over the Tasman sea, which pushed usual Autumn cold fronts far south of the mainland. ==Background== The 2014 heatwave was caused by a High pressure system located over the Tasman sea, pushing cold fronts further south. The arrival of the heatwave could not have come at a worse time; south-eastern New South Wales and Victoria had experienced a generally dry summer and had been receiving less precipitation than average; the high pressure system only added to this problem. Furthermore, the anticipation of an El Nino weather pattern shifted from California during the mid year, which brings drought causing weather, also added to the problem. Despite being titled a 'heatwave', many were pleased with the comfortable weather conditions of around 25 degrees in Sydney, 5 above average for May, but climatologists noted that if the phenomenon had of occurred in the Summer, temperatures would have ranged in excess of 35 degrees. South Australia, New South Wales and Victoria were mainly effected by the unusual weather.
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「2014 South-Eastern Australian heatwave」の詳細全文を読む
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