Dataset Title: A low-cost acoustic permeameter

Article Citation: Drake, S. A., Selker, J. S., and Higgins, C. W.: A low-cost acoustic permeameter, Geoscientific Instrumentation, Methods and Data Systems, 6, 199-207, 2017.

Dataset DOI:10.7267/N95H7D65
Article DOI:10.5194/gi-6-199-2017

Project Description: We designed an low-cost acoustic permeameter and validated it with reticulated foam samples.

Dataset Abstract:

This dataset was used to determine the attenuation of an audio signal by reticulated foam samples that span the natural range of intrinsic permeability for seasonal snow. Data are audio measurements acquired on a two-channel oscilloscope. The original, artificially-generated signal is measured on channel 1 and the attenuated return signal was acquired on channel 2. Each experiment contains four files: a comma-separated (CSV) file of the original signal, a second (CSV) file for the second channel, a bitmap image of the measured signals and a file that contains the oscilloscope settings. Each individual ASCII file contains the results of 1 frequency applied at one amplitude for a one foam type. The ASCII files are named consecutively by run index using the template, "F{index}CH{channel_number}.csv". Subdirectories are named in year, month and day using the format "YYYYMMDD". This format lists the subdirectories chronologically. For example, data acquired on channel 2 for run 71 on November 22, 2015 is contained in "Permeameter_AC/20151122/All0071/F0071CH2.csv".

Principal Investigator: Dr. Chad W. Higgins

Collaborators: Dr. Stephen Drake, Dr. John S. Selker

Contact: Dr. Stephen Drake, stephenadrake@gmail.com

Dataset Citation: Drake, S. A., Selker, J. S., and Higgins, C. W.: A low-cost acoustic permeameter, OSU Libraries, Dataset, https://doi.org/10.7267/N95H7D65, 2017.

Geographic description: Data were acquired outside in a relatively quiet urban setting, latitude: 44.569371, longitude: -123.283017.

Time period: Data were acquired on select days from September 9 2015 through November 22 2015.

Keywords: permeameter, permeability, snow, acoustic

Project sponsor: none

Dataset Usage Rights: Creative Commons CC0 License

Files: 
name: Permeameter_AC.zip
value: audio measurements of foam samples
name: README_Permeameter_AC.txt
value: Readme file for Permeameter_AC  data
name: Matlab_Scripts.zip
value: Matlab scripts used to generate manuscript figures
name: README_Matlab_Scripts.txt
value: README file for Matlab scripts
name: Figure_Generation.txt
value: describes how to use these Matlab functions and scripts to generate figures in the manuscript