新书探讨了安装在井孔中的光纤电缆如何监测地震活动、流体流动、地下温度等。
distributed acoustic sensing (DAS)
Posted inEditors' Vox
Listening to Earth’s Subsurface with Distributed Acoustic Sensing
A new book examines how fiber-optic cables installed in boreholes can monitor seismic activity, fluid flow, subsurface temperatures, and more.
Posted inNews
Fiber-Optic Cables Used to Measure Changing Soil Moisture
Scientists are using seismic techniques to measure soil moisture. Their results show that recent droughts in California depleted water in the shallow subsurface.
Posted inScience Updates
Telecom Fibers Are Sensing Earthquake Hazards in Istanbul
A fiber-optic cable below Türkiye’s earthquake-prone metropolis is offering new details about how seismic waves will rattle the city—and demonstrating the potential of a bigger monitoring effort.
Posted inNews
Fiber-Optic Networks Could Reveal the Moon’s Inner Structure
Distributed acoustic sensing offers a cost-effective alternative to traditional seismic arrays, and building such a network on the Moon might be possible.
Posted inNews
Thunderquakes Map the Subsurface
Researchers have figured out how rumbling thunder turns to seismic waves and how this shaking could be used to reveal subsurface geology.
Posted inResearch Spotlights
Internet Cable Reveals the Source of Underwater Vibrations
A novel use of an existing fiber-optic cable off the coast of Spain has clued scientists in to how seismic noise is generated in the ocean.
Posted inFeatures
Distributed Sensing and Machine Learning Hone Seismic Listening
Fiber-optic cables can provide a wealth of detailed data on subsurface vibrations from a wide range of sources. Machine learning offers a means to make sense of it all.
Posted inResearch Spotlights
Fiber-Optic Cables Can Produce High-Resolution Underground Maps
Telecom fiber repurposed as distributed acoustic sensing arrays can image near-surface structure and potentially improve seismic hazard mapping in urban areas.
Posted inEditors' Vox
Using Sound and Vibration Signals to Understand the Subsurface
A new book explores Distributed Acoustic Sensing, a technology with a range of applications across geophysics and related fields.