News Finding: One of the many uses of distributed acoustic sensing 
Paper Finding: This study demonstrates the efficacy of near-surface seismic monitoring using DAS-recorded ambient noise.
News Context: One of the many uses of distributed acoustic sensing 
Paper Context: Our results illustrate that for the top 20 meters the V S models that is well constrained by the data, we obtain time-lapse repeatability of about 2% in the model domain-a threshold that is low enough for observing subtle near-surface changes such as water content variations and permafrost alteration. This study demonstrates the efficacy of near-surface seismic monitoring using DAS-recorded ambient noise. As a result, DAS offers new opportunities for seismic monitoring of the near surface.