Smakhtin, VYMasse, B2007-06-292007-06-292000-04Smakhtin, VY and Masse, B. 2000. Continuous daily hydrograph simulation using duration curves of a precipitation index. Hydrological Processes, vol 14(6), pp 1083-11000885-6087http://hdl.handle.net/10204/724Copyright: 2000 John Wiley & Sons LtdThe paper describes a parsimonious approach for generating continuous daily stream-flow time-series from observed daily rainfall data in a catchment. The key characteristic in the method is a duration curve. It is used to convert the daily rainfall information from source rain gauges into a continuous daily hydrograph at the destination river site. For each source rain gauge a time-series of rainfall related `current precipitation index' is generated and its duration curve is established. The current precipitation index reflects the current catchment wetness and is defined as a continuous function of precipitation, which accumulates on rainy days and exponentially decays during the periods of no rainfall. The process of rainfall-to-runoff conversion is based on the assumption that daily current precipitation index values at rainfall site(s) in a catchment and the destination site’s daily flows correspond to similar probabilities on their respective duration curves. The method is tested in several small catchments in South Africa. The method is designed primarily for application at ungauged sites in data-poor regions where the use of more complex and information consuming techniques of data generation may not be justified.enUngauged sitesPrecipitation indexSpantial interpolationObserved recordsArticleSmakhtin, V., & Masse, B. (2000). Continuous daily hydrograph simulation using duration curves of a precipitation index. http://hdl.handle.net/10204/724Smakhtin, VY, and B Masse "Continuous daily hydrograph simulation using duration curves of a precipitation index." (2000) http://hdl.handle.net/10204/724Smakhtin V, Masse B. Continuous daily hydrograph simulation using duration curves of a precipitation index. 2000; http://hdl.handle.net/10204/724.TY - Article AU - Smakhtin, VY AU - Masse, B AB - The paper describes a parsimonious approach for generating continuous daily stream-flow time-series from observed daily rainfall data in a catchment. The key characteristic in the method is a duration curve. It is used to convert the daily rainfall information from source rain gauges into a continuous daily hydrograph at the destination river site. For each source rain gauge a time-series of rainfall related `current precipitation index' is generated and its duration curve is established. The current precipitation index reflects the current catchment wetness and is defined as a continuous function of precipitation, which accumulates on rainy days and exponentially decays during the periods of no rainfall. The process of rainfall-to-runoff conversion is based on the assumption that daily current precipitation index values at rainfall site(s) in a catchment and the destination site’s daily flows correspond to similar probabilities on their respective duration curves. The method is tested in several small catchments in South Africa. The method is designed primarily for application at ungauged sites in data-poor regions where the use of more complex and information consuming techniques of data generation may not be justified. DA - 2000-04 DB - ResearchSpace DP - CSIR KW - Ungauged sites KW - Precipitation index KW - Spantial interpolation KW - Observed records LK - https://researchspace.csir.co.za PY - 2000 SM - 0885-6087 T1 - Continuous daily hydrograph simulation using duration curves of a precipitation index TI - Continuous daily hydrograph simulation using duration curves of a precipitation index UR - http://hdl.handle.net/10204/724 ER -