Data for: Timescales of Autogenic Noise in River Bedform Evolution and Stratigraphy

Bedforms are ubiquitous features on alluvial river channels. Bedform deposits—fluvial cross strata— are the fundamental sedimentary structures of the rock record on Earth and Mars. Bedform evolution and preserved cross strata respond to floods; however, it is unclear which flood durations are likely to be represented in bedform evolution and cross strata. To address this, we quantified the structure of autogenic noise in bedform evolution using high-resolution spatiotemporal data from a steady-state, physical experiment of bedform evolution. 
The data herein accompanies the manuscript “Timescales of Autogenic Noise in Bedform Evolution and Fluvial Cross Strata ” by Vamsi Ganti, Madeline M. Kelley, Debsmita Das and Robert C. Mahon. In this manuscript, we quantified the scales of autogenic noise in sediment efflux, bedform evolution, and preserved deposition rates in fluvial cross strata. We accomplish this using a steady-state experiment of bedform evolution and perform spectral analysis..., All data associated with this manuscript were collected from a steady state experiment of bedform evolution at the Experimental Sedimentology Laboratory at UC Santa Barbara. The experiment was conducted in a 15 m-long, 2 m-wide and 1 m-deep sediment and water recirculating flume. Bedforms evolved under a constant flow discharge of 0.28 m3/s and the flow depth varied from 0.35 m to 0.3 m over the 7 m-long test section. We used quartz sand with a median grain size of 0.35 mm as sediment in the experiment. 
We collected two sets of bathymetric data for the spectral and the bedform-tracking analysis. The spanwise extent of these datasets was centered along the flume centerline. For the spectral analysis, we monitored a 32 mm-by-251 mm patch of bed, located at x = 10 m, at a spatial and temporal resolution of 1 mm and 12 s, respectively, for 65 hrs. This was in conjunction with high resolution sediment flux data from weigh pans at the downstream end of the flume. For bedform tracking, we mon..., , # Data submission for ‘Timescales of Autogenic Noise in River Bedform Evolution and Stratigraphy’

[https://doi.org/10.5061/dryad.c2fqz61h9](https://doi.org/10.5061/dryad.c2fqz61h9)

These materials consist of Code and Data. The data consists of the bathymetric data files in .mat (MATLAB) format for the associated manuscript ‘Timescales of Autogenic Noise in Bedform Evolution and Fluvial Cross Strata’. The code provides the MATLAB script for estimating the sediment flux.

## Description of the data and file structure

\--All data and code are within the file Data.zip

Data

\#steady_state_longscans_detrend.mat
This mat file contains three variables:
X -vector representing coordinates in the longitudinal or downstream direction.
Y -vector representing coordinates in the lateral or cross-stream direction.
dt_z1- 3-dimensional matrix containing the time series of bed elevation scans used for computing bedform geometry and kinematics. Within dt_zl, the first dimension indicates the scan num...