Summary & Purpose
This data is being submitted to fulfill requirements for a publication submission to Geophysical Research Letters. The manuscript's abstract is below. Mechanisms that produce seismic and acoustic wavefields near rivers are poorly understood because of a lack of observations relating temporally dependent river conditions to the near-river seismo-acoustic fields. This controlled study at the Harry W. Morrison Dam (HWMD) on the Boise River, Idaho explores how temporal variation in fluvial systems affects surrounding acoustic and seismic fields. Adjusting the configuration of the HWMD changed the river bathymetry and therefore the form of the standing wave below the dam. The HWMD was adjusted to generate four distinct wave regimes that were parameterized through their dimensionless Froude numbers (Fr) and observations of the ambient seismic and acoustic wavefields at the study site. To generate detectable and coherent signals a standing wave must exceed a threshold Fr value of 1.7, where a non-breaking undular jump turns into a breaking weak hydraulic jump. The spectral content of the seismic and acoustic energies may partially be controlled by hydrodynamic processes. Furthermore, spectra related to reproducible wave conditions can be used to calibrate and verify fluvial seismic and acoustic models.
Date of Publication or Submission
Martin Fund, University of North Carolina at Chapel Hill
Files are list composed of 27 numeric vectors tha are raw time series data of each seismic and acoustic energy generated by each wave shape. Vectors are named according to the instrument and component of data collection. BSM1-BSM7 are seismic data sampled at 250 sps. AD8 and A3M are infrasound arrays collected at 200 sps.
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Ronan, Timothy J.; Mikesell, Dylan; and Lees, Jonathan M., "Data Set for Acoustic and Seismic Fields of Hydraulic Jumps at Varying Froude Numbers" (2017). Environmental Seismology Lab Data Sets. 1.