在特拉诺瓦湾,罗斯海的水产量从高分辨率盐度观测
Una Kim Miller1, Christopher J Zappa2, Arnold L Gordon2
1Lamont-Doherty Earth Observatory of Columbia University, Palisades, New York, USA. ukm2103@columbia.edu.
Nature communications
|January 16, 2024
概括
在南极洲生产高盐度架水 (HSSW).
科学领域:
- 海洋学 海洋学 海洋学
- 南极研究南极研究.
- 气候科学 气候科学
背景情况:
- 高盐度架水 (HSSW) 对于南极地底水 (AABW) 的形成至关重要.
- AABW驱动全球海洋翻转循环.
- 由于有限的数据,人们对HSSW生产率的了解很少.
研究的目的:
- 量化罗斯海的高水产量.
- 研究HSSW形成的变化和驱动因素.
- 实地真相 HSSW 估计使用现场数据.
主要方法:
- 在特拉诺瓦湾 (TNB) 部署的停泊,以获得高分辨率的盐度数据.
- 在2017年澳大利亚冬季收集的数据.
- 计算了HSSW年平均产量,并分析了2012-2021年的估计.
主要成果:
- 估计年平均HSSW产量约为0.4 Sv.
- 观察到显著的季节和年间变化.
- 发现HSSW生产对开放水域,风和海冰敏感.
结论:
- 泰国国家铁路是HSSW生产的关键地点.
- 高水生产受到当地环境条件的强烈影响.
- 海冰和风的变化影响HSSW形成和AABW贡献.
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