GIS-gestuetzte Ermittlung von Abflusskonzentrationsparametern fuer ein konzeptionelles Hochwassermodell

A module for the concentration of runoff as part of a conceptual rainfall-runoff model is performed and its parameters are estimated by use of the hydrograph analysis and a certain geographical information system (GIS). The rainfall-runoff model has been developed for flood events and it reproduces the components of direct runoff, viz. surface runoff and interflow. The physically based parameters of the linear translation-diffusion model and the parameters of the single linear reservoir and their determination by a new technique of analysis form the objective of this study. Particularly, the simulation of runoff during the process of overland flow and channel flow in small watersheds. The spatial distribution of basin parameters, as slope, direction of slope, flood components and vegetation, were determined by application of digital topographical and morphometric maps, which are generated by GIS ARC/INOF. An example is given for the determination of flood components using several rainfall events in different watersheds. (orig.)SIGLEAvailable from TIB Hannover: RA 1164(126) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman