This acoustic sand flux analysis aims to analyze horizontal acoustic and suspended sediment data to obtain continuous time series of suspended sand and fine sediment concentration. The method is mostly based on the dual-frequency approach described by Topping and Wright (2016), but includes also some adjustments and improvements. Precise descriptions of the applied methods and a workflow can be found in Marggraf (2024a) and Marggraf (2024b).
Required data
- ASCII-converted output files of Horizontal Acoustic Doppler Current Profilers (HADCPs).
- Suspended sand (and fine sediment) measurements in the cross-section close to the HADCPs.
- Continuous discharge, stage and total suspended sediment concentration measurements.
A detailed step-by-step description is included in the User_manual.pdf in English and French. In this document, the use of the different codes and the required input data, their formatting and the output data are described and illustrated. Example files for the required formatting are included in the "Example_data" folder.
References
Marggraf, J. (2024a). Improving methods for the hydroacoustic monitoring of suspended sand concentration and grain size: Application to the Isere River at Grenoble Campus (Doctoral dissertation). University Claude Bernard Lyon 1.
Marggraf, J., Le Coz, J., Camenen, B., Lauters, F., Dramais, G., Pierrefeu, G., Topping, D. J., (2024b). Improving hydroacoustic methods for monitoring suspended sand flux and grain size in sediment-laden rivers. Submitted to Earth Surface Processes and Landforms.
Topping, D. J., & Wright, S. A. (2016). Long-term continuous acoustical suspended-sediment measurements in rivers - theory, application, bias, and error (Professional Paper No. 1823). U. S. Geological Survey. doi: https://doi.org/10.3133/pp1823
Licence
Copyright (C) 2024 INRAE This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see https://www.gnu.org/licenses/.