This readme.txt file was generated on 2022-01-02 by Jiyong Lee
Recommended citation for the data: 
title: Reconstructing sediment transport by migrating bedforms in the physical and spectral domains
authors: Jiyong Lee, Arvind Singh, and Michele Guala
journal: Water Resources Research
year: 2022
status: submitted

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GENERAL INFORMATION
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1. Title of Dataset 

Measurements of spatio-temporal bed evolution and sediment transport under four different transport stages in the SAFL main channel

2. Author Information


  Principal Investigator Contact Information
        Name: Michele Guala, Associate Professor of Civil, Environmental, and Geo-Engineering
           Institution: University of Minnesota
           Address: St. Anthony Falls Laboratory
           Email: mguala@umn.edu
	   Website: https://guala.cege.umn.edu/
	   ORCID: 0000-0002-9788-8119

  Associate or Co-investigator Contact Information
        Name: Jiyong Lee
           Institution: University of Minnesota
           Address: St. Anthony Falls Laboratory
           Email: lee02291@umn.edu
	   ORCID: 0000-0001-9895-7406


3. Date of data collection
from 2021-01-01 to 2021-03-01

4. Geographic location of data collection:  
The main channel at St. Anthony Falls Laboratory (SAFL), University of Minnesota

5. Information about funding sources that supported the collection of the data: 
The Department of Energy under award no. DE-EE0008947

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SHARING/ACCESS INFORMATION
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1. Licenses/restrictions placed on the data:

CC0 1.0 Universal
https://creativecommons.org/publicdomain/zero/1.0/

2. Links to publications that cite or use the data:


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DATA & FILE
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Data archive for 
title: Reconstructing sediment transport by migrating bedforms in the physical and spectral domains
authors: Jiyong Lee, Arvind Singh, and Michele Guala
journal: Water Resources Research
year: 2022

- This data archive contains 4 folders: T23, T39, T48, and T59 for each experiment condition.

- Each folder contains the following mat files.

1) dynamic_snr.mat
Bed and water surface elevation measurement along the channel center using submersible sonar 
and acoustic distance sensor, respectively. 

	t: time at each data acquisition [sec]
	x: streamwise location [mm]
	y: spanwise location [mm]
	zb: bed surface elevation [mm]
	zw: water surface elevation [mm]
	*** [streamwise_index, time_index]=size(zb) or size(zw)

2) sediflux.mat
Measurement of volumetric sediment flux per unit width using weighing pans at the channel exit.
Low-pass filter was applied to the measured sediment flux to remove artificial fluctuations in the signals.
Such undesired high frequency fluctuations are induced by mechanical vibrations from undulating water surfaces, 
rotating augur, sediment recirculation pump, among many other factors. The cutoff frequency was set 
to be 0.02 Hz (50 s), which is similar order as the minimum T_min in Figure 6 in the paper.

	t: time at each data acquisition [sec]
	lpf_F: volumetric sediment flux per unit width [m^2/s]
	Q: water discharge [L/s]
	*** lpf_F(:,1): pan1 | lpf_F(:,2): pan2 | lpf_F(:,3): pan3 | lpf_F(:,4): pan4 | lpf_F(:,5): pan5 

3) stationary_snr.mat
Temporal bed elevation change measurement using three submersible sonars, located 2.15 m upstream of weighing pans.

	t: time at each data acquisition [sec]
	zb: temporal bed elevation [mm]
	*** zb(:,1): sonar 1, located at the center of pan2 
	*** zb(:,2): sonar 2, located at the center of pan3 
	*** zb(:,3): sonar 3, located at the center of pan4     

4) bed_evolution.mat
2D spatio-temporal bed evolution using the laser scanning device. 

	t: time at each data acquisition [sec]
	Xg: streamwise locations [mm]
	Yg: spanwise locations [mm]
	topo: spatio-temporal bed elevation change [mm]
	*** [streamwise_index, spanwise_index, time_index]=size(topo)