UNO experimental dataset for: Multiscale bedform reorganization at the onset of substantial suspended sediment transport
Data files
Oct 29, 2025 version files 362.70 MB
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20cm_30Hz_experiment.zip
188.74 MB
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20cm_35Hz_experiment.zip
61.35 MB
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20cm_40Hz_experiment.zip
112.60 MB
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Grain_size_analysis_reports
0 B
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README.md
1.76 KB
Abstract
We collected data from three experiments that tracked bedform evolution in a 22-m-long, 0.56-m-wide, and 0.9-m-deep flume at the University of New Orleans' Dynamics of Sedimentation laboratory. Each experiment was run at equilibrium conditions under steady, uniform, normal flow in a fully closed system recirculating flume. All three experiments were run at 20cm mean flow depth, the same bed material sediment, but with varied discharge: 20cm 30Hz experiment at 45 L/s, 20cm 35Hz experiment at 51 L/s, 20cm 40Hz experiment at 56 L/s. We measured topography using a 3D laser scanning system along an approximately 5.5-m-long test section, with scans repeated approximately every 165 seconds. We analyzed bed topography for the 2D centerline profile at 1 mm horizontal resolution.
Dataset DOI: 10.5061/dryad.gtht76j06
Description of the data and file structure
Files and variables
- 20cm_30Hz_experiment.zip
- 20cm_35Hz_experiment.zip
- 20cm_40Hz_experiment.zip
- Grain_size_analysis_reports
The data folder has three folders- one for each experiment condition (‘20cm 30Hz experiment’, ‘20cm 35Hz experiment’, and ‘20cm 40Hz experiment’) with one subfolder each titled ‘[experiment name] csvs’ in which individual variables from the .mat array are exported as .csv files.
Description of the data and file structure:
20cmcenterline.mat
This mat file contains four variables:
- t_minutes_sorted - vector representing the time at which the scan was captured in seconds.
- *x *- vector representing coordinates in the longitudinal or downstream direction along the study section at 1 mm resolution.
- z_centerline - 2-dimensional matrix containing time series of longitudinal profiles of bed elevation used for computing bedform geometry and kinematics, and the power spectral density of bed elevation. Within z_centerline, the first and second dimensions represent the bed elevation along a longitudinal profile and the time step, respectively.
- z_centerline_slopecorrected - 2-dimensional matrix containing time series of longitudinal profiles of bed elevation used for computing bedform geometry and kinematics, and the power spectral density of bed elevation. Within z_centerline_slopecorrected, the first and second dimensions represent the bed elevation along a longitudinal profile and the time step, respectively.