AuScope Distributed Acoustic Sensing (DAS) Collection

Brief description

This record was harvested by RDA at 2026-07-09T16:10:12.254246+10:00 from NCI's Data Catalogue where it was last modified at 2023-02-10.

Full description

Distributed Acoustic Sensing (DAS) is a fibre-optic sensing technology that transforms standard telecommunication cables into long, continuous sensors for ground vibrations. DAS measures dynamic strain rate along an optical fibre using a technique known as phase-sensitive optical time-domain reflectometry. A DAS interrogator sends repeated laser pulses into the fibre and records the backscattered light (Rayleigh backscatter). When the fibre is stretched or compressed by ground motion, small changes in the optical phase occur between successive pulses, from which strain-rate is derived. By measuring ground vibrations continuously along the length of a fibre, DAS provides a non-invasive way to obtain dense, high-resolution observations over distances of tens of kilometres. This capability supports a broad range of scientific and monitoring applications, enabling the observation of natural and human-generated ground motion and the study of subsurface and near-surface processes in both urban and non-urban environments.

Credit

The Geophysics 2030 project received co-investment from AuScope and the Australian Research Data Commons (ARDC) to support the data curation at the National Computational Infrastructure (NCI Australia) (https://doi.org/10.47486/XN002). AuScope, the ARDC and NCI Australia are enabled by the National Collaborative Research Infrastructure Strategy (NCRIS).

Suggested citation:
AuScope ; Research School of Earth Sciences (RSES), Australian National University (2023): AuScope Distributed Acoustic Sensing (DAS) Collection. v1. NCI Australia.dataset. https://dx.doi.org/10.25914/zr9f-1e98