Application of a unit hydrograph based on subwatershed division and comparison with Nash's instantaneous unit hydrograph

A review of the synthetic unit hydrograph: from the empirical UH to advanced geomorphological methods

“…The model is frequently used for determining the direct runoff hydrograph, e.g. , Boufadel (1998), Singh (2000), Jeng and Coon (2003), Agirre et al (2005) and Bhunya et al (2008). The Nash model has also been applied successfully in sedimentation and environmental engineering by Kumar and Rastogi (1987), Sharma et al (1992) and Sharma and Murthy (1996).…”

Multi-Site Calibration of Linear Reservoir Based Geomorphologic Rainfall-Runoff Models

“…The Equations (12) and (13) have been presented based on Equations (6) and (7). Although these relations are similar to Equations (6) and (7), it should be emphasized that the parameter values of a and b may differ from the values of and c in the calibration process, because they are applied to two different models with different structures.…”

“…Boyd [11,12] developed the watershed bounded network model to create a network representation for the synthesis of the IUH employing geomorphologic and hydrologic characteristics of the watershed. Agirre et al [13] and López et al [14] presented unit hydrograph models using watershed geomorphology and the linear reservoir concept with a constant calibrated lag time for all reservoirs. López et al [15] compared the previously developed one-parameter IUH model with four other IUH models in three experimental watersheds in the north of Spain.…”

A variable storage coefficient model for rainfall—runoff computation / Modèle pluie—débit basé sur un coefficient de stockage variable

“…Nasri et al (2004) proposed a production function based model similar to the Nash model. More recently, Agirre et al (2005) and López et al (2005) developed rainfall-runoff models in which the watershed is represented as a cascade of linear reservoirs. The model of López et al (2005) based on the geomorphic IUH approach, represents the watershed as a cascade of reservoirs in two ways: (i) from the sub-watershed network structured along the drainage network, and (ii) by areas limited u(t) Q 1 (t)…”