Fiber optic distributed acoustic sensing for debris flow monitoring: lab and physical model tests

The use of Optical Fiber Distributed Acoustic Sensing (DAS) in geohazard monitoring is gaining attention. This technology utilizes fiber optic cables to detect acoustic signals along their length, enabling real-time monitoring of various geohazards such as landslides, debris flow, subsidence, and even earthquakes. By analyzing the vibrations and sounds picked up by the fiber, we can gain valuable insights into the stability of the surrounding environment and respond to potential threats more effectively.