Australian Lightwave Infrastructure Research Testbed Dataset (ALIRT-001)

Brief description

This record was harvested by RDA at 2024-02-14T09:51:51.483+11:00 from NCI's Data Catalogue where it was last modified at 2023-01-10.

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.

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).