Abstract

A distributed model for estimation of runoff volumes and peak rates of flow from small semiarid watersheds is shown to produce reasonable estimates for mean runoff and flood frequency distributions. The model is simplified and constructed to require a minimum of observed data for calibration. The model simulates runoff volume and peak discharge rates for individual storm events. It can also be used to estimate water yield and a surface water balance incorporating transmission losses in ephemeral stream channels. Experimental data are compared with the simulation model predictions. Individual components of the model could be improved with further research and data. However, based on available information contained in soils and topographic maps and published sources, the distributed model can be used to estimate runoff rates and amounts from ungaged watersheds in semiarid regions.

Keywords

Surface runoffHydrology (agriculture)Environmental scienceStormDistributed element modelWater balanceEphemeral keyFlood mythHydrological modellingCalibrationRunoff modelSoil waterStreamflowSoil scienceGeologyMeteorologyDrainage basinGeographyStatisticsMathematicsClimatologyEcology

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Publication Info

Year
1982
Type
article
Volume
108
Issue
10
Pages
1114-1131
Citations
57
Access
Closed

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Leonard J. Lane (1982). Distributed Model for Small Semiarid Watersheds. Journal of the Hydraulics Division , 108 (10) , 1114-1131. https://doi.org/10.1061/jyceaj.0005910

Identifiers

DOI
10.1061/jyceaj.0005910