What is it about?
Describing the long-term evolution of rivers can be very challenging, especially because of the computational effort required by a detailed description of the physical processes involved. To address this problem, simplified physically-based models can represent an innovative approach, but a thorough verification of equations and simplifications adopted is strictly required. In this work, a 0D, two-reach, two-grainsize hydro-morphological model is presented and applied to a schematic reach.
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Why is it important?
The performed applications of the 0D model to different geometries demonstrate that the present riverine morphology at the basin scale will persist practically stationary for extremely long periods of time if the climatic forcing remain unchanged and no anthropogenic perturbations are introduced in the system.
Perspectives
The development and application of simplified models are necessary to evaluate the long-term evolution of alluvial rivers at the watershed scale, involving a reduced computation effort. Besides given information at the larger scale, such applications represent an important starting point for more detailed simulations, providing the input data especially in the case of ungauged basins.
Dr Michael Nones
Institute of Geophysics - Polish Academy of Sciences
Read the Original
This page is a summary of: Long-term Morphodynamics of a Schematic River Analysed with a Zero-dimensional, Two-reach, Two-grainsize Model, Earth Surface Dynamics Discussions, February 2017, Copernicus GmbH,
DOI: 10.5194/esurf-2017-7.
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