在波罗的海系统中进行大规模的水地化学和同位素观测
Tristan McKenzie1, Claudia Majtényi-Hill2, Linnea Henriksson2
1Department of Marine Sciences, University of Gothenburg, Gothenburg, Sweden. tristan.mckenzie@gu.se.
Scientific data
|November 6, 2025
概括
本研究提供了来自波罗的海探险的综合水地化学和同位素数据,揭示了沿海水质和海底地下水排放的洞察力. 这些发现支持对河口生物地质化学和海洋环境健康的研究.
科学领域:
- 海洋化学 海洋化学
- 地质化学 地质化学
- 环境科学环境科学
背景情况:
- 波罗的海是一个半封闭的海洋,面临着环境压力.
- 了解其水地化学对于管理沿海生态系统至关重要.
- 海底地下水排放 (SGD) 是沿海海域的重要,但往往不足量化的输入.
研究的目的:
- 在波罗的海进行广泛的水地化学和同位素采样.
- 描述影响沿海水组成的陆地端子.
- 为研究河口生物地质化学和SGD提供一个全面的数据集.
主要方法:
- 两个研究探险:一个~5000公里的R/V Skagerak巡航 (2023) 和陆基采样 (2024).
- 持续监测地表水中的水文参数,pH值和-222 (Rn).
- 收集和分析542个离散水柱样本,69个垂直样本和陆地端体样本 (地下水,近岸水,河流).
- 对短寿命同位素,营养物质,溶解有机和无机碳,总溶解,总性,甲和稳定同位素 (δ18OH2O, δ2H2O, δ13CDIC, δ13CCO2, δ13CCH4) 的分析.
主要成果:
- 整个波罗的海的详细水地化学和同位素概况.
- 描述各种陆地输入 (地下水,河流) 和它们的化学特征.
- 一个包括持续监测和离散样本分析在内的全面数据集.
结论:
- 收集的数据为了解波罗的海水地化学提供了宝贵的资源.
- 这一数据集将促进未来对海底地下水排放和河口生物地质化学的研究.
- 这些发现有助于更广泛地了解沿海海洋环境及其过程.
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