Leeds-Blacknest Eskdalemuir distributed acoustic sensing experiment February 2023

The Eskdalemuir distributed acoustic sensing (DAS) experiment was part of the IRIS Global DAS month, recording throughout February 2023. The installation uses optical telecommunication fibers which connect together each element of the Eskdalemuir seismic array (part of the International Monitoring System). A Febus A1-R DAS interrogator was connected to these fibers, making a loop of ~35 km from the seismic station, via a central interconnect hut, to the ends of each of the arms of the array, and then back again. As is typical for DAS, the data record axial (along-fiber) strain rate at regular intervals along the cables.