Journal
HYDROLOGICAL SCIENCES JOURNAL-JOURNAL DES SCIENCES HYDROLOGIQUES
Volume 57, Issue 2, Pages 217-228Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/02626667.2011.644244
Keywords
time of concentration; travel time; lag time; ungauged basins
Categories
Funding
- Provincia di Viterbo
- Autorita di Bacino del Fiume Tevere
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The time of concentration is a primary parameter for a variety of modern hydrological models adopted in professional and scientific communities. Nevertheless, a universally accepted working definition of this parameter is currently lacking and several definitions can be found in the technical literature along with related estimation procedures. This study brings to light the inherent variability of these definitions through the empirical analysis of four small basins. These case studies demonstrate that available approaches for the estimation of the time of concentration may yield numerical predictions that differ from each other by up to 500%.
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