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Single Processor +
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18:55:37, 12 December 2025 +
We are working on the model to relax the assumptions of fixed width, absence of floodplain topography and single grain size. Future plans also involve integrating the sand and mud and the gravel version in a single module. +
No +
December 12, 2025 +
The model has been applied to simulate the Minnesota River widening and the manuscript is currently in review with the Journal of Geophysical Research: Earth Surface +
flow duration curve, mean annual sand load, rating curve for mud, long profile and other geometric parameters +
Model governing equations express the cons … Model governing equations express the conservation of sand and mud in the floodplain, in the channel bed and in the water column. The active layer approximation is implemented. Sand transport rates are computed with an Engelund and Hansen-type load relation, overbank deposition rates are computed with empirical closures. Channel migration and point bar height can be fixed or can vary in space and time following the work by Ikeda et al. (1981) or Eke et al., (2014).Ikeda et al. (1981) or Eke et al., (2014). +
the module operates at the reach scale (10 - 100s of kilometers) +
reach-averaged channel sinuosity is assumed to be fixed, sand is modeled in terms of a single grain size and floodplain topography (floodplain channels) is not considered. +
long profile, bankfull channel geometry, sediment fluxes, bankfull discharge, fraction of sand and mud stored in the floodplain and in the point bar +
the module describes how channel bed profi … the module describes how channel bed profile, channel width and depth, as well as bankfull discharge, can change due to the imbalance between the hydrologic regime (flow duration curve), the supply of sand and mud, sand transport capacity and exchange of sand and mud between the channel and the floodplain for point bar deposition, bank migration and overbank deposition.n, bank migration and overbank deposition. +
the module works at time scales of a decade or longer. +
Active +
Given the hydrologic regime (flow duration … Given the hydrologic regime (flow duration curve) and the sediment supply rate (annual sand load and rating curve for mud), the model imposes sediment mass conservation to simulate changes in channel and floodplain elevation, channel bankfull width, depth and discharge, as well as point bar height and grain size distribution, overbank deposition rates, centerline or bank migration rates.rates, centerline or bank migration rates. +
Enrica +
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excel spreadsheet +
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Terrestrial +
MAST 1D Minnesota +
As code +
also https://github.com/vipenrica/Channel-geometry and
https://github.com/MAST-1D/MAST-1D-2.0 +
Single +
https://github.com/vipenrica/MAST-1D---Sand-Mud---Minnesota-River +
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18:55:37, 12 December 2025 +
there is a mix grain size model by Wes Lauer and Katherine De Rego https://github.com/MAST-1D/MAST-1D-2.0 and an equilibrium (analytical) solution by Viparelli and Eke https://github.com/vipenrica/Channel-geometry +
The model simulates the co-evolution of a single thread sand bed river and its floodplain in 1D +
excel file +
29208/80126 +
false +
false +
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Visual Basic for Applications +
BSD or MIT X11 +
Through web repository +
https://github.com/vipenrica/MAST-1D---Sand-Mud---Minnesota-River +
Reach-Scale +
2008 +
Windows +
Model developer +
