Istituto di Scienza e Tecnologie dell'Informazione     
Morandi Cecchi M. A model for a drainage basin and its approach to soil erosion. In: Colloque sur l'erosion agricole du sol en milieu tempere' non mediterrane' (Strasbourg et Colmar, 1978). Proceedings, 1978.
A computer analysis of a drainage basin in developed by the use of concepts of morphometry.the topic of this paper is related to a hydrographic basin considered as a hollow region of the lithosphere where the meteoric wather inflow and in different ways outflow to the final collector. A one-dimensional numerical model of the river branches developed. The quantization obtained permits the comparison of the behaviour of different types drainage .basins. A numerical theree-dimensional model of the aides of drainage basins of river branches has been developed. Such model gives the knowedge of the surfaces of drainage basin sides and it is based on a triangular mesh. This mesh is made automatically by the use of the digitizer and the coordinate of the altitudo evaluated by having digitized the lines of elevation. An automatic map of slope is obtained and also a map of the exposures by .the use of the computer. All the mathematical analysis connected is explained. A relation to soil erosion is indicated.

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