Details zur Publikation

Kategorie Textpublikation
Referenztyp Zeitschriften
DOI 10.5194/hess-17-3159-2013
Titel (primär) Application of a model-based rainfall-runoff database as efficient tool for flood risk management
Autor Brocca, L.; Liersch, S.; Melone, F.; Moramarco, T.; Volk, M.
Quelle Hydrology and Earth System Sciences
Erscheinungsjahr 2013
Department CLE
Band/Volume 17
Seite von 3159
Seite bis 3169
Sprache englisch
UFZ Querschnittsthemen RU1
Abstract A framework for a comprehensive synthetic rainfall-runoff database was developed to study catchment response to a variety of rainfall events. The framework supports effective flood risk assessment and management and implements simple approaches. It consists of three flexible components, a rainfall generator, a continuous rainfall-runoff model, and a database management system. The system was developed and tested at two gauged river sections along the upper Tiber River (central Italy). One of the main questions was to investigate how simple such approaches can be applied without impairing the quality of the results. The rainfall-runoff model was used to simulate runoff on the basis of a large number of rainfall events. The resulting rainfall-runoff database stores pre-simulated events classified on the basis of the rainfall amount, initial wetness conditions and initial discharge. The real-time operational forecasts follow an analogue method that does not need new model simulations. However, the forecasts are based on the simulation results available in the rainfall-runoff database (for the specific class to which the forecast belongs). Therefore, the database can be used as an effective tool to assess possible streamflow scenarios assuming different rainfall volumes for the following days. The application to the study site shows that magnitudes of real flood events were appropriately captured by the database. Further work should be dedicated to introduce a component for taking account of the actual temporal distribution of rainfall events into the stochastic rainfall generator and to the use of different rainfall-runoff models to enhance the usability of the proposed procedure.

dauerhafte UFZ-Verlinkung
Brocca, L., Liersch, S., Melone, F., Moramarco, T., Volk, M. (2013):
Application of a model-based rainfall-runoff database as efficient tool for flood risk management
Hydrol. Earth Syst. Sci. 17 , 3159 - 3169 10.5194/hess-17-3159-2013