Data for: Multiscale bedform reorganization at the onset of substantial suspended sediment transport

Sand-bedded rivers feature dunes and ripples, collectively referred to as bedforms, that regulate flow resistance and sediment fluxes. Recent research has demonstrated that in large lowland rivers, bedforms are characterized by their multiscale organization; however, the flow and sediment transport conditions under which these arrangements are stable remain unknown. In this study, we analyzed twelve flume experiments of bedform evolution to reveal a previously unrecognized transition in the organization of multiscale bedforms.
The data herein accompany the manuscript “Multiscale bedform reorganization at the onset of substantial suspended sediment transport ” by Debsmita Das, Vamsi Ganti, and Robert C. Mahon. This dataset consists of bathymetric data from four flume experiments of bedform evolution conducted in a 15m-long, 2-m-wide, and 1-m-deep flume at the Experimental Sedimentology Laboratory, University of California, Santa Barbara. This includes a 20-hour-long step-discharge experi..., , # Data for: Multiscale bedform reorganization at the onset of substantial suspended sediment transport

Dataset DOI: [10.5061/dryad.t4b8gtjdn](10.5061/dryad.t4b8gtjdn)

## Description of the data and file structure

### Files and variables

* UCSB_SS23.zip
* UCSB_SS30.zip
* UCSB_SS33.zip
* UCSB_StepDis.zip

The data folder consists of four zipped folders- UCSB_SS23, UCSB_SS30, UCSB_SS33, UCSB_StepDis. Each subfolder consists of bathymetric scans for that experiment as .mat files.

**Description of the data and file structure for UCSB_SS23, UCSB_SS30, UCSB_SS33:**

scan<number>.mat

This mat file contains three variables:

* *X* -vector representing coordinates in the longitudinal or downstream direction along the study section at 1 mm resolution.
* *Y* -vector representing coordinates in the lateral or cross-stream direction along the study section at 1 mm resolution.
* *Z* - 2-dimensional matrix containing bed elevation scans used for computing bedform geometry and kinematics, and the ...,