Comparison of Three Daily Rainfall-Runoff Hydrological Models Using Four Evapotranspiration Models in Four Small Forested Watersheds with Different Land Cover in South-Central Chile

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dc.contributor.authorFlores, Neftali
dc.contributor.authorRodríguez, Rolando
dc.contributor.authorYépez, Santiago
dc.contributor.authorOsores, Víctor
dc.contributor.authorRau, Pedro
dc.contributor.authorRivera, Diego
dc.contributor.authorBalocchi, Francisco
dc.date.accessioned2021-12-14T14:54:53Z
dc.date.available2021-12-14T14:54:53Z
dc.date.issued2021
dc.description.abstractWe used the lumped rainfall–runoff hydrologic models Génie Rural à 4, 5, 6 paramètres Journalier (GR4J, GR5J and GR6J) to evaluate the most robust model for simulating discharge on four forested small catchments (<40 ha) in south-central Chile. Different evapotranspiration methods were evaluated: Oudin, Hargreaves–Samani and Priestley–Taylor. Oudin’s model allows the achievement of the highest efficiencies in the flow simulation. The more sensitive parameters for each model were identified through a Generalized Probability Uncertainty Estimation (GLUE) model. Our results demonstrate that the three hydrological models were capable of efficiently simulating flow in the four study catchments. However, the GR6J model obtained the most satisfactory results in terms of simulated to measured streamflow closeness. In general, the three models tended to underestimate peak flow, as well as underestimate and overestimate flow events in most of the in situ observations, according to the probability of non-exceedance. We also evaluated the models’ performance in a simulation of summer discharge due to the importance of downstream water supply in the months of greatest scarcity. Again, we found that GR6J obtained the most efficient simulationses
dc.identifier.citationFlores, N.; Rodríguez, R.; Yépez, S.; Osores, V.; Rau, P.; Rivera, D.; Balocchi, F. Comparison of Three Daily Rainfall-Runoff Hydrological Models Using Four Evapotranspiration Models in Four Small Forested Watersheds with Different Land Cover in South-Central Chile. Water 2021, 13, 3191. https://doi.org/10.3390/w13223191es
dc.identifier.urihttps://doi.org/10.3390/w13223191es
dc.identifier.urihttp://hdl.handle.net/11447/5232
dc.language.isoenes
dc.subjectHydrological modelses
dc.subjectSmall catchmentes
dc.subjectPlantationses
dc.subjectPinus radiataes
dc.subjectNothofagus glaucaes
dc.subjectEucalyptus nitenses
dc.titleComparison of Three Daily Rainfall-Runoff Hydrological Models Using Four Evapotranspiration Models in Four Small Forested Watersheds with Different Land Cover in South-Central Chilees
dc.typeArticlees
dcterms.sourceWateres

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