在北极夏季海冰和相邻的表面海水中溶解无机碳的度和控制
Xiaoxia Cai1, Yanpei Zhuang1, Yingxu Wu1
1Polar and Marine Research Institute, Jimei University, Xiamen, 361000, China.
Marine environmental research
|July 9, 2023
概括
北极海冰溶解无机碳 (DIC) 主要由盐水含量控制. 增强的海冰融化稀释了地表水DIC,影响了海洋碳循环.
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:
- 海冰碳酸盐化学是全球海洋碳循环的重要组成部分,特别是在经历气候变化的极地地区.
- 关于北极海冰和海水之间的碳酸盐系统相互作用的数据有限,这阻碍了全面的理解.
研究的目的:
- 研究北极夏季海冰中的溶解无机碳 (DIC) 度和控制因素.
- 分析海冰碳酸盐化学和相邻的表面海水之间的关系.
主要方法:
- 在2014年夏季巡航期间对北极海冰进行实地采样.
- 测量溶解无机碳 (DIC) 和相关的环境参数.
- 2014年海冰DIC数据与1994年的历史地表水数据进行比较.
主要成果:
- 北极夏季海冰中平均DIC度为463.3±213.0μmol/kg,主要受到盐水分量的影响.
- 低甲基和营养水平表明生物吸收对北极西部海冰DIC的影响很小.
- 地表水的DIC (<100米) 从1994年的2108.3±45.4μmol/kg下降到2014年的2052.4±98.6μmol/kg.
结论:
- 盐水分数是控制北极夏季海冰中DIC的主导因素.
- 增加的海冰融化稀释了表面海水DIC,影响了海洋碳系统.
- 需要进一步的研究才能充分理解海冰-海水碳酸盐系统的动态.
关键词:
北极洋 北极海洋 北极海洋碳循环 是一个碳循环.DIC DIC DIC DIC DIC DIC DIC DIC DIC DIC DIC DIC DIC DIC DIC DIC DIC DIC融化冰的融化冰是什么意思海冰碳的碳是海冰的碳.更多相关视频
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