在南大洋花季期间气候相关气体之间的关系
Zhang Miming1, Heng Sun2, Jiexia Zhang2
1Key Laboratory of Global Change and Marine-Atmospheric Chemistry of Ministry of Natural Resources (MNR), Third Institute of Oceanography, MNR, Siming District, Xiamen, Fujian 361005, China; Guangdong MS Institute of Scientific Instrument Innovation, Guangzhou, Guangdong, China.
The Science of the total environment
|January 7, 2024
概括
南大洋是南方的海洋.
科学领域:
- 海洋学 海洋学 海洋学
- 海洋化学 海洋化学
- 气候科学 气候科学
背景情况:
- 海洋调节气候相关的气体,如CO2,N2O和DMS.
- 南洋是一个关键的碳汇,DMS来源,以及潜在的N2O来源.
- 这些气体之间的相互作用及其对南大洋气候的影响需要进一步研究.
研究的目的:
- 为了研究南大洋中CO2,DMS和N2O的相互作用.
- 在2015-2016年CHINARE探险期间分析气体动态.
- 了解海洋学条件如何影响这些气候相关气体.
主要方法:
- 对地表水的pCO2,DIC,TA,DMS和N2O进行分析.
- 在南极半岛第32次CHINARE探险期间收集数据.
- 气体度与海洋学参数之间的相关性分析.
主要成果:
- 在75米以上的水域中,DMS和pCO2 (∆DIC) 之间发现了正相关性.
- 在N2O和异常 (SA) 和DMS或∆DIC之间没有观察到相关性.
- 稳定的分层与植物浮游生物的开花显示DMS的生产,二氧化碳的吸收,和微弱的N2O排放.
- 强烈混合/上升的地区表现出二氧化碳释放,二氧化排放和弱度的DMS生产.
结论:
- 海洋学条件对气候相关气体的生产和消费有重大影响.
- 在分层水中植物浮游生物的繁荣有利于DMS的产生和CO2的吸收.
- 上升和混合促进CO2释放和N2O排放,而DMS的产量有限.
- 了解这些气体交换动态对于预测南大洋气候变化影响至关重要.
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