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Updated: Jul 1, 2025

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Evolution of Staircase Structures in Diffusive Convection
Published on: September 5, 2018
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在动态海洋学条件下,新英格兰货架上的三个泥沉积中心的海底性质的跨维度反转)
Julien Bonnel1, Stan E Dosso2, William S Hodgkiss3
1Applied Ocean Physics and Engineering, Woods Hole Oceanographic Institution, Woods Hole, Massachusetts 02540, USA.
The Journal of the Acoustical Society of America
|March 6, 2024
概括
这项研究使用贝叶斯推理分析了来自三个泥池的海底声学数据. 结果显示,随着时间的推移,泥的特性是一致的,其中一个池在空间上有所不同,可能是由于实际财产的变化或数据信息内容.
科学领域:
- 海洋地质物理学 海洋地质物理学
- 声学逆转是一种声音逆转.
- 海底特征的描述
背景情况:
- 准确的海底属性估计对于地质调查至关重要.
- 以前的研究通常假定静态或已知的水柱,限制了适用性.
- 模态时频分散为声学逆转提供了一个强大的方法.
研究的目的:
- 应用一个跨维的贝叶斯推理方法来估计三个泥池的地球声学特性.
- 评估海底性质的时间和空间变化.
- 为了将反向结果与现场测量和以前的研究进行比较.
主要方法:
- 在2022年海底表征实验 (SBCEX) 期间,使用单个水声机收集声学数据.
- 应用一个跨维的 (跨D) 贝叶斯推理方法来共同逆转水柱和海底的属性.
- 定量分析比较不同海洋条件和泥之间的结果.
主要成果:
- 成功估计了海底特性,与现场声芯测量相一致.
- 在估计的泥地球声学特性中没有观察到显著的时间变化.
- 在两个泥池之间没有发现显著的空间变化;第三个显示了不同的特性.
结论:
- 跨D贝叶斯法有效估计海底的特性,即使在动态的,未知的水柱.
- 泥土的地声学特性随着时间的推移而表现出稳定性.
- 一个泥池中的明显空间变化可能源于实际物质差异或数据信息内容的变化,需要进一步调查.
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