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Runoff generation processes in a Mediterranean research catchment (Sardinia)

Niedda, Marcello and Castellini, Mirko and Giadrossich, Filippo and Pirastru, Mario (2013) Runoff generation processes in a Mediterranean research catchment (Sardinia). Journal of Agricultural Engineering , Vol. 44 (Suppl. 1), e8. ISSN 1974-7071. Article.

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Abstract

In recent decades the hydrological community has increasingly improved its understanding of the runoff generation in river basins.
Since Horton (1933), numerous studies have investigated these mechanisms at the plot, hillslope and catchment scale (e.g.: Betson, 1964; Dunne and Black, 1970; Pilgrim et al., 1978; Kirkby, 1978; Mosley, 1979; Beven, 1989; Anderson and Burt, 1991). The primary processes that have been observed and described to explain runoff generation in a catchment area are: (1) Hortonian Overland Flow (HOF), which occurs when rainfall intensity exceeds the infiltration capacity of the soil; (2) Saturation Overland Flow (SOF), which occurs when the storage capacity of the soil is exceeded and defines the concept of contributing saturated areas, which expand as rainfall volume increases; Saturated Subsurface Flow (SSF), which occurs when the water in the soil flows along lateral paths and thus contributes to streamflow as return flow from the groundwater aquifer.

Item Type:Article
ID Code:9630
Status:Published
Refereed:Yes
Uncontrolled Keywords:Storm-flow coefficient, runoff generation, physically based model
Subjects:Area 07 - Scienze agrarie e veterinarie > AGR/08 Idraulica agraria e sistemazioni idraulico-forestali
Divisions:001 Università di Sassari > 01-a Nuovi Dipartimenti dal 2012 > Agraria
Publisher:PagePress
ISSN:1974-7071
Copyright Holders:© Copyright M. Niedda et al., 2013 Licensee PAGEPress, Italy
Deposited On:18 Feb 2014 13:07

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