Analysis of the structure of river systems and the prospects for modeling hydrological processes

We consider the results derived in Russia from investigating the structure of river systems for the period 1960-1980. Some generally available sources of digital models of the relief, and the main algorithms for processing them are described. We provide an example of analyzing the hydrographic network of the Komarovka river basin in order to develop the technique of objective digitizing and correct determination of a first-order water stream.