Kozhedub S. Erosion-sediment processes models that basis on system research of forming methods of topographical surfaces

Thesis devoted to systemic and geometric methods of generating digital elevation model. A heterogeneous geometrical model of soil erosion under the influence of weather factors is designed and corresponding computational algorithms that allow prediction of changes on topographic surface in dynamics was created. Visual structural-functional model is developed based on a systematic understanding of the method of generating DEM as "geometric machine". The system of evaluation methods of generating DEM was improved on the basis of methodological concepts "operation power of the method of geometrical modelling". An open active hierarchical typology of methods of generating DEM was created, it made practicable to organize and to demonstrate active use of search an alternative new method with rational structures. The concept of "capacity" of practical problems is proposed. The system of a quantitative characteristic that determine the structural and functional kinds of a practical problem was formed. The both coordination systems characteristics of method and of practical problem and use of geometric interpretations and visual representations is basis of the creation a heterogeneous geometric model of erosion and sediment processes. So complex with geometric and non geometric in part models (or components) of different typological variations of methods was obtained. Studies implemented in practice of computation of the characteristics of erosion-sediment processes.