Estimation of the time scale of the geomorphologic instantaneous unit hydrograph from effective streamflow velocity | Zendy

Agnese C. | Zendy; D'Asaro F. | Zendy; Giordano G. | Zendy

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Estimation of the time scale of the geomorphologic instantaneous unit hydrograph from effective streamflow velocity

Author(s) -

Agnese C.,

D'Asaro F.,

Giordano G.

Publication year - 1988

Publication title -

water resources research

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.863

H-Index - 217

eISSN - 1944-7973

pISSN - 0043-1397

DOI - 10.1029/wr024i007p00969

Subject(s) - hydrograph , streamflow , scale (ratio) , hydrology (agriculture) , dimensionless quantity , structural basin , geology , environmental science , drainage basin , geomorphology , geography , geotechnical engineering , cartography , physics , mechanics

The greatest difficulty in applying the geomorphologic instantaneous unit hydrograph is the estimation of the time scale of the hydrologic response of a basin. We derive the time scale from the effective streamflow velocity of the highest‐order stream and the spatial distribution of velocity throughout the stream network. The latter is described by a dimensionless geomorphologic function with a single‐shape parameter. The proposed method is applied to some Italian basins.

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