Development of methods of modeling the structure of river basins based on GIS tools
Keywords:
river network, catchment morphology, stream orders, order classification of watersheds, structural and hydrographic analysis, digital elevation model.Abstract
Development of methods of modeling the structure of river basins based on GIS tools. E.A. SHEKMAN
(Pacific Geographical Institute, FEB RAS, Vladivostok).
This article discusses about using the Complex Energy Index (CEI) to parametrize the conditions for the formation
of the river network and the development on its basis of methods of structural and hydrological analysis of river systems and the spatial organization of the main structural elements of the river basin, river network and watershed network, in framework of a single ordinal concept. The use of CEI for modeling the river network was tested in a wide range of physical and geographical conditions. For ordinal classification of watersheds, the principle based on drainage paths from the watershed to the closing line along the links of the river network of different orders was formulated. The use of a single ordinal concept makes it possible to improve the typification of elemental water collections depending on the order of the watershed.
