Please use this identifier to cite or link to this item:
http://hdl.handle.net/2067/42599
Title: | A parsimonious geomorphological unit hydrograph for rainfall-runoff modelling in small ungauged basins | Authors: | Grimaldi, Salvatore Petroselli, Andrea Nardi, F. |
Journal: | HYDROLOGICAL SCIENCES JOURNAL | Issue Date: | 2012 | Abstract: | In this study, a parsimonious hydrological modelling algorithm is proposed based on the automated DEM-based geomorphic characterization of runoff dynamics in scarcely monitored river basins. The proposed approach implements the instantaneous unit hydrograph (IUH) concept, estimated using the width function (WF), for characterizing the travel time distribution using just one parameter, the river network flow velocity. Hillslope velocities are defined using spatially-distributed empirical formulas based on slope and soil-use information extrapolated from digital topographic data. Case studies are presented for testing model performance and comparing simulated and observed hydrographs of 25 selected flood events, as well as investigating the differences with the geomorphological instantaneous unit hydrograph (GIUH) model results. The calibration of the WFIUH channel flow velocity parameter using the concentration time is investigated providing interesting insights for the use of such a method for hydrological prediction in ungauged basins. © 2012 Copyright 2011 IAHS Press. |
URI: | http://hdl.handle.net/2067/42599 | ISSN: | 0262-6667 | DOI: | 10.1080/02626667.2011.636045 |
Appears in Collections: | A1. Articolo in rivista |
Files in This Item:
File | Description | Size | Format | Existing users please |
---|---|---|---|---|
Grimaldi-Petroselli-Nardi 2011 A parsimonious geomorphological unit hydrograph for rainfall–runoff modelling in small ungauged basins.pdf | 977.24 kB | Adobe PDF | Request a copy |
SCOPUSTM
Citations
1
95
Last Week
0
0
Last month
0
0
checked on Apr 17, 2024
Page view(s)
97
Last Week
0
0
Last month
1
1
checked on Apr 20, 2024
Download(s)
4
checked on Apr 20, 2024
Google ScholarTM
Check
Altmetric
All documents in the "Unitus Open Access" community are published as open access.
All documents in the community "Prodotti della Ricerca" are restricted access unless otherwise indicated for specific documents