Simulated Sediment Transport and Deposition with MGB-SED for Tocantins-Araguaia, São Francisco and Paranapanema basins

Published: 2 February 2026| Version 1 | DOI: 10.17632/v56psj7g9k.1
Contributors:
, Hugo Fagundes

Description

We provide a dataset of simulated suspended sediment discharge and sediment deposition for three reservoir cascades. The results were achieved using the MGB-SED model calibrated and validated for the Tocantis-Araguaia, São Francisco and Paranapanema watersheds. We did simulations between 1980 and 2019 using the characteristics of each reservoir and explicit equations to compute daily sediment deposition. In this dataset, we provide: - .xlsx file named " Reservoir_Data" with the reservoir trap efficiency (%) for each deposition approach we tested; the reservoir characteristics (e.g. lat, lon, volume, average deposition); and annual sediment deposition for each reservoir . - .rar file named "Shapefiles" with shapefiles named "Tocantins_Araguaia_Rivers.shp", "Sao_Francisco_Rivers.shp" and "Paranapanema_Rivers.shp" with the unit catchment codes that can be used to identify the river reach related to the simulated sediment series. - NetCDF file named 'QSS_TO.nc' with daily suspended sediment discharge (t/day) for all (1721) simulated river reaches in the Tocantins-Araguaia River Basin, from 1980-2019 . - NetCDF file named 'QSS_SF.nc' with daily suspended sediment discharge (t/day) for all (1150) simulated river reaches in the São Francisco River Basin, from 1980-2019 . - NetCDF file named 'QSS_PA.nc' with daily suspended sediment discharge (t/day) for all (224) simulated river reaches in the Paranapanema River Basin, from 1980-2019 .

Files

Steps to reproduce

We used the MGB-SED model to simulate sediment transport in three reservoir cascades. We simulate reservoirs, computing the sediment deposition. We perform a model calibration and validation for each reservoir cascade. This study followed the steps of the works of Fagundes et al.: "Sediment Flows in South America Supported by Daily Hydrologic-Hydrodynamic Modeling" and "Human-Induced Changes in South American River Sediment Fluxes From 1984 to 2019". However, here we did new calibrations for each basin and deeper analysis exploring the relation between the reservoirs.

Institutions

Categories

Hydrology, Erosion, Sedimentation, Reservoir Modeling

Funders

Licence