北 Stream 的甲泄漏分布在波罗的海 14% 的水域
Martin Mohrmann1,2, Louise C Biddle3,4, Gregor Rehder5
1Voice of the Ocean Foundation, Skeppet Ärans Väg 19, Västra Frölunda, 426 71, Sweden. martin.mohrmann@voiceoftheocean.org.
Nature communications
|January 15, 2025
概括
超过400千的甲 (CH4) 从北方流管道泄漏. 溶解的甲散布在波罗的海,影响海域,明显超过自然水平.
科学领域:
- 环境科学 环境科学
- 海洋学 海洋学 海洋学
- 化学 化学 化学
背景情况:
- 北流管道在2022年9月经历了一次重大的甲 (CH4) 泄漏,估计释放了443-486千的CH4.4.
- 大部分释放的甲溶入了波罗的海,需要了解其分布和影响.
研究的目的:
- 为了追踪北流管道事故后波罗的海溶解甲的传播和度.
- 估计溶解甲的质量,并评估其对海洋生态系统和保护区的影响.
- 为提炼大气排放和运输模型提供数据.
主要方法:
- 利用自主滑翔机和船舶的高分辨率观测数据来监测甲度.
- 采用了一个数字模型,结合工程估计和观测数据,以限制溶解的甲质量.
- 分析了分布在波罗的海各个地区的溶解甲的空间和时间动态.
主要成果:
- 将当地溶解的北流甲的质量限制在9.5-14.7千.
- 观察到由于排气而导致溶解甲度的快速下降.
- 确定14%的波罗的海经历了比自然平均水平高五倍的甲度.
结论:
- 北 Stream 泄漏的甲导致了波罗的海有很大的局部溶解甲度.
- 溶解的甲通过排气而相对快速消散,但最初的高度对环境产生了显著的影响.
- 精确监测和模拟溶解甲对于理解生态系统反应和改善大气运输预测至关重要.
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