The South Pole has warmed three times faster than the rest of the planet in the last 30 years due to warmer tropical ocean temperatures, new research showed Monday.
周一,有新研究表明,由于热带海洋温度升高,南极在过去30年内的变暖速度是地球其他地方的3倍。
Antarctica's temperature varies widely according to season and region, and for years it had been thought that the South Pole had stayed cool even as the continent heated up.
南极气温的季节差异和地区差异很大,多年来一直以为即使全球气温升高,南极也会保持低温。
Researchers in New Zealand, Britain and the United States analysed 60 years of weather station data and used computer modelling to show what was causing the accelerated warming.
新西兰、英国和美国的研究人员分析了气象站60年的数据,并利用计算机模拟来展示加速变暖的原因。
They found that warmer ocean temperatures in the western Pacific had over the decades lowered atmospheric pressure over the Weddell Sea in the southern Atlantic.
他们发现,数十年来西太平洋海水温度升高使南大西洋威德尔海上空的大气压力降低。
This in turn had increased the flow of warm air directly over the South Pole - warming it by more than 1.83C (about 3.3F) since 1989.
这一现象增加了南极上空的暖空气流量,使南极气温从1989年开始上升了超过1.83摄氏度(约3.3华氏度)。
【南极的变暖速度是地球其他地方的3倍】相关文章:
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