Development of a procedure to estimate runoff and sediment transport in ephemeral streams
A distributed hydrologic model for application on small, semiarid watersheds is developed. The distributed model incorporates simplified routing schemes to include the influence of transmission losses on runoff. A sediment transport model, by sediment size fractions, is developed to compute transport capacity and sediment yield in noncohesive, alluvial channels. Based on available information published in soils and topographic maps and on channel and bed sediment characteristics, the procedure is used to estimate runoff rates and amounts together with sediment yields from semiarid watersheds. Example applications include flood frequency analysis and sediment yield. The procedure requires a minimum of observed data for calibration and is designed for practical applications.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 5171335
- Report Number(s):
- LA-UR-81-3017; CONF-820701-1; ON: DE82002368
- Resource Relation:
- Conference: 4. symposium of the International Association of Hydrological Sciences, Exeter, UK, 19 Jul 1982
- Country of Publication:
- United States
- Language:
- English
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