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Exploring the potential of geophones for quantifying bedload tranpsort and river ice break up in the Canning River, Alaska
(Listening for sediment transport and ice)
University of Colorado Boulder (CU), United States of America
In this project, we installed two passive seismic stations along the Canning River on Alaska's
North Slope to monitor river bedload transport and river ice breakup from 26 March to 31 July
2023. Each station consisted of a 4.5 Hz 3-channel geophone, a Centaur data logger, battery, and
solar panel. These sta(ons were installed on low river terraces 30-40 m away from the bank of
the ac(ve river channel. To characterize signal propagation through the ground at these two
stations, we conducted active seismic experiments using five SmartSolo nodes and manual signal
generation with a sledge hammer and aluminum plate. We conducted active experiments at the
end of the passive station deployment, on 28 and 31 July 2023. At each station, we arranged the
single nodes in three arrays. For each array, we triggered 10 shots on one end of the array and
10 shots on the opposite end of the array, to analyze signal propagation through the substrate.
Our goal is to use the active seismic experiment data to calibrate the passive geophone data, and
ultimately estimate changes in river water discharge, ice cover, and bed sediment transport rates
in the Canning River over spring to summer 2023.
This dataset contains the active experiment node data.