Using seafloor fibre optic sensing, this study reveals how iceberg calving amplifies submarine melt by exciting internal waves, providing new insights into the complex ice-ocean interactions driving glacier retreat.
Using 20 Hz fin whale calls, this study establishes a method to convert DAS-recorded strain into quantitative acoustic pressure measurements, advancing the use of fiber optic cables for marine acoustic monitoring.
This study demonstrates a method to quantitatively reconstruct surface wave heights from DAS data on seafloor cables, validating its potential for real-time coastal wave monitoring.
Using Distributed Acoustic Sensing (DAS) on existing seafloor fiber optic cables to monitor ocean processes such as temperature, wave heights or seafloor currents.
This study investigates the sensitivity of Distributed Acoustic Sensing (DAS) to small-scale heterogeneities in the subsurface. Through numerical modeling and homogenization theory, we show that DAS strain measurements are highly sensitive to these heterogeneities, unlike traditional velocity measurements, which has implications for various applications.
We demonstrate a non-intrusive method for using Distributed Acoustic Sensing (DAS) on active telecom networks, enabling environmental monitoring without disrupting data traffic.
We model the seafloor strain from tsunamis to show that Distributed Acoustic Sensing (DAS) on fiber optic cables can be a viable tool for early-warning systems.
AI and fiber optic sensing for smart territories
Exploiting fiber optic cable to scrutinize natural hazards