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

We 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:...

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Autores principales:	Neftali Flores, Rolando Rodríguez, Santiago Yépez, Victor Osores, Pedro Rau, Diego Rivera, Francisco Balocchi
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	hydrological models small catchment plantations <i>Pinus radiata</i> <i>Nothofagus glauca</i> <i>Eucalyptus nitens</i> Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500
Acceso en línea:	https://doaj.org/article/41ff7b1f0d634421a50f934dbaf10bbd
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spelling	oai:doaj.org-article:41ff7b1f0d634421a50f934dbaf10bbd2021-11-25T19:15:24ZComparison of Three Daily Rainfall-Runoff Hydrological Models Using Four Evapotranspiration Models in Four Small Forested Watersheds with Different Land Cover in South-Central Chile10.3390/w132231912073-4441https://doaj.org/article/41ff7b1f0d634421a50f934dbaf10bbd2021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4441/13/22/3191https://doaj.org/toc/2073-4441We 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 simulations.Neftali FloresRolando RodríguezSantiago YépezVictor OsoresPedro RauDiego RiveraFrancisco BalocchiMDPI AGarticlehydrological modelssmall catchmentplantations<i>Pinus radiata</i><i>Nothofagus glauca</i><i>Eucalyptus nitens</i>Hydraulic engineeringTC1-978Water supply for domestic and industrial purposesTD201-500ENWater, Vol 13, Iss 3191, p 3191 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	hydrological models small catchment plantations <i>Pinus radiata</i> <i>Nothofagus glauca</i> <i>Eucalyptus nitens</i> Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500
spellingShingle	hydrological models small catchment plantations <i>Pinus radiata</i> <i>Nothofagus glauca</i> <i>Eucalyptus nitens</i> Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500 Neftali Flores Rolando Rodríguez Santiago Yépez Victor Osores Pedro Rau Diego Rivera Francisco Balocchi 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
description	We 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 simulations.
format	article
author	Neftali Flores Rolando Rodríguez Santiago Yépez Victor Osores Pedro Rau Diego Rivera Francisco Balocchi
author_facet	Neftali Flores Rolando Rodríguez Santiago Yépez Victor Osores Pedro Rau Diego Rivera Francisco Balocchi
author_sort	Neftali Flores
title	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
title_short	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
title_full	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
title_fullStr	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
title_full_unstemmed	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
title_sort	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
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/41ff7b1f0d634421a50f934dbaf10bbd
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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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