MODEL FOR SIMULATION OF GRANULOMETRIC DISPERSION IN RIVER ENVIRONMENT (02)

The granulometric dispersion is an important element in the constitution of fluvial systems, since the processes that determine the granulometric dispersion are the same that act by molding the shape and geometry of the fluvial channels and influence the constitution of the relief. When a landscape is simulated using a Landscape Evolution Model (LEM), only a topographic surface is commonly generated, and in the case of a river system, a visualization of the distribution of deposits may be necessary to better understand the behavior and trends of this system. In this work we propose a model of particle size dispersion in river systems based on the Shear Stress theory with open source code and implementation with the Landlab library for use together with a LEM. The model simulates the location of fluvial deposits and the grain size found in these deposits and a case study in the Pirati Basin area, RS, Brazil, demonstrated how the granulometric dispersion behaves in different time steps through the application of an LEM.

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