Shear wave velocity, Vs, profile from an active source MASW survey recorded on iDAS.
Seismic imaging and monitoring with iDAS can be applied in a wide range of settings, including characterisation of sites for infrastructure projects; understanding ice sheet flow and deformation; and assessing near-surface processes such as compaction, landslides, fluid flow or gas migration.
Silixa’s iDAS, the intelligent Distributed Acoustic Sensor, converts an optical fibre into a spatially dense array of seismic sensors. The iDAS interrogators are sensitive to a broad frequency range from mHz to kHz, making them well-suited to near-surface seismic surveys. Geophysical DAS surveys facilitate cost-effective near-surface imaging over large distances.