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对2023年12月波罗的海中等大流入的观察
Kaveh Purkiani1, Kerstin Jochumsen2, Jens-Georg Fischer2
1Federal Maritime and Hydrographic Agency of Germany, Hamburg, Germany. Kaveh.Purkiani@bsh.de.
Scientific reports
|July 17, 2024
概括
暴风雨Zoltan在2023年12月造成了重大破坏和一个主要的波罗的海涌入事件. 这一事件为波罗的海带来了大量的盐酸,富含氧气的水,标志着自2016年以来最强的涌入.
科学领域:
- 海洋学 海洋学 海洋学
- 环境科学 环境科学
- 气象学 天气学
背景情况:
- 暴风雨Zoltan在2023年12月袭击了德国,带来了大雨和强风.
- 这场风暴造成了巨大的破坏,并在北海沿岸引发了巨大的风暴浪潮.
- 了解波罗的海西部随后发生的水文变化至关重要.
研究的目的:
- 为了分析风暴Zoltan之后,波罗的海西部的水流入的特点.
- 量化与这种流入事件相关的体积和盐运输量.
- 评估流入对波罗的海水文学的影响,特别是溶解氧水平.
主要方法:
- 在Fehmarn Belt (FEB),Darss Sill (DAR) 和Arkona Basin (ARK) 浮标的水特性 (盐度,温度,溶解氧气,电流) 的分析.
- 在Landsort Norra监测海平面变化.
- 根据观测数据计算水量和盐运输量.
主要成果:
- 观察到大量的盐水,冷水和富含氧气的水从卡特盖特河和北海流入西波罗的海.
- 涌入导致波罗的海海平面和水量大幅上升.
- 这一事件代表了中等到主要的波罗的海流入,带来了75立方公里的盐水和大约0.8 Gt的氧气.
结论:
- 暴风雨Zoltan引发了自2016年以来最强大的波罗的海涌入事件.
- 这次涌入大大改变了波罗的海西部的水文条件.
- 该活动强调了大风暴对波罗的海生态系统的重大影响.
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