使用陆地和海底电缆进行地震检测的超稳定激光干扰测量
Giuseppe Marra1, Cecilia Clivati2, Richard Luckett3
1National Physical Laboratory, Hampton Road, Teddington TW11 0LW, UK. giuseppe.marra@npl.co.uk.
概括
现有的光纤电缆可以使用先进的频率计量检测水下地震. 这项创新为全球地震监测提供了可扩展的解决方案,
科学领域:
- 地质学
- 地震学
- 光学工程
背景情况:
- 海底的地震活动对于了解地球的结构和动态至关重要.
- 海洋的地震计覆盖范围有限,
- 现有的电信光纤电缆覆盖了广的海洋区域.
研究的目的:
- 展示使用电信光纤电缆进行地震探测的可行性.
- 利用现有基础设施加强全球地震监测.
- 探索频率计量在地物理传感中的应用.
主要方法:
- 使用电信光纤电缆作为地震传感元件.
- 应用最先进的频率计量技术来检测地震信号.
- 分析陆地和海底光纤连接的地震数据.
主要成果:
- 使用光纤电缆成功检测地震.
- 通过75至535公里的光纤连接实现检测.
- 在距离震中心25至18500公里处检测到的地震事件.
结论:
- 光纤网络可以用于地震探测,包括水下事件.
- 这种技术为全球地震网络提供了具有成本效益和广泛的解决方案.
- 在现有的海底光纤网络上实施可以实时检测水下地震.
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