Australian Lightwave Infrastructure Research Testbed Dataset (ALIRT-001) - Level 1 Decimated Data

Brief description

This record was harvested by RDA at 2025-06-20T16:34:27.583+10:00 from NCI's Data Catalogue where it was last modified at 2023-03-14.

Full description

Distributed Acoustic Sensing (DAS) provides a new, non-invasive mean for high resolution subsurface imaging in urban, developed environments by repurposing existing telecommunication cables. This DAS dataset is collected over 3 months between December 2021 and April 2022 at a fibre optic network dedicated to research, i.e., ALIRT (Australian Lightwave Infrastructure Research Testbed) in Melbourne, Australia. In this deployment, a 25 km long fibre optic cable is transformed into 6252 channels at 4 m spacing, starting from Melbourne Central Business District running west to east. Silixa iDAS interrogator is used, which measures strain-rate at 1 kHz with a fixed gauge length of 10 m. The time series recorded is decimated to 62.5 Hz. This dataset represents the ALIRT-001 Level 1 Decimated Data outputs.

Credit

We would like to acknowledge contributions from InPAC lab at RMIT for access to their lab; AARNet for access to the fibre optic network.

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).