In: Journal of Hydrology and Hydromechanics, vol. 65, no. 4
Víctor Manuel Aguilar - Víctor Gómez - Fernando Pellat
Details:
Year, pages: 2017, 343 - 346
Keywords:
Recession curve; Groundwater discharge; Expo-linear model; Reservoir.
Original source URL: http://www.ih.sav.sk/jhh
About article:
The identification of the moment when direct flow ends and baseflow begins is one of the biggest challenges
of hydrological cycle modeling. The objectives of this research were: to characterize the recession curves (RC) and to
separate the components of the hydrograph in a compact model. The RC were extracted from time series in three subwatersheds
in Mexico. An expo-linear model was adapted and fitted to the master recession curves to find the transition
point of the hydrograph and separate the baseflow. The model discriminated the RC in two decreasing ratios: one linear
associated to the direct flow, and one exponential linked to the baseflow. The transition point between these two flows
was obtained analytically by equaling both ratios. The derivation of a model parameter allowed to find the maximum
points in the hydrometric time series, which were the criterion to separate the baseflow. The application of this model is
recommended in the analysis of RC with different magnitudes from the flexibility and attachment to the fundaments of
exhaustion of a reservoir.
How to cite:
ISO 690:
Aguilar, V., Gómez, V., Pellat, F. 2017. An alternative approach in hydrograph decomposition and separation of the
baseflow. In Journal of Hydrology and Hydromechanics, vol. 65, no.4, pp. 343-346. 0042-790X (until 2019) .
APA:
Aguilar, V., Gómez, V., Pellat, F. (2017). An alternative approach in hydrograph decomposition and separation of the
baseflow. Journal of Hydrology and Hydromechanics, 65(4), 343-346. 0042-790X (until 2019) .