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全球海洋热量积累的近期加速,按模式和中间水域进行
Zhi Li1,2,3, Matthew H England4,5, Sjoerd Groeskamp6
1Climate Change Research Centre, University of New South Wales, Sydney, NSW, 2052, Australia. zhi.li4@unsw.edu.au.
Nature communications
|October 29, 2023
概括
海洋的热量吸收显著加速,全球模式和中间水域吸收了大部分多余的热量. 区域水域对这种变暖做出了不成比例的贡献,影响了海平面上升和气候.
科学领域:
- 海洋学 海洋学 海洋学
- 气候科学 气候科学
- 地球系统科学 地球系统科学
背景情况:
- 海洋吸收了90%以上的人为热量,缓解了全球变暖.
- 了解海洋热量吸收在盆地和水体之间的分布至关重要.
研究的目的:
- 分析海洋热量吸收的分布和加速.
- 为了确定负责热吸收的关键水体.
- 评估海平面上升和气候影响的影响.
主要方法:
- 分析历史和最近的海洋学观测.
- 海洋热量吸收的分解,按水质层和区域进行分解.
- 考虑到由于变暖和清新而导致的水质体积变化.
主要成果:
- 从1990-2000年到2010-2020年,海洋的热量吸收量几乎翻了一番.
- 全球模式和中间水层占热量吸收的89% (2005-2020年).
- 区域模式和中间水域相对于其体积显示出不成比例的高热量吸收.
结论:
- 加快的海洋变暖主要是由全球模式和中间水域的变化驱动的.
- 区域水体在总热量吸收中起着至关重要的作用.
- 这些发现对预测未来海洋变暖,海平面上升和气候变化影响有重大影响.
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