Browsing by Author "Gironas Leon, Jorge Alfredo"
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- ItemA new applications manual for the Storm Water Management Model (SWMM)(2009) Gironas Leon, Jorge Alfredo; Roesner, Larry A.; Rossman, Lewis A.; Davis, Jennifer
- ItemA Spatial Analysis of Dispersion Mechanisms in the Hydrological Response Using a Spatially Distributed Travel Time Model(2022) Pablo Chong; Gironas Leon, Jorge Alfredo; Jeffrey D. Niemann
- ItemAdvanced numerical models for the propagation of floods with high-sediment concentrations in mountain rivers(2018) Contreras, M.T.; Gironas Leon, Jorge Alfredo; Westerink, J.; Escauriaza, C.Rapid floods induced by extreme precipitation are common events in regions near the Andes mountain range. Growing urban development, combined with the changing climate and the influence of El Niño, have increased the exposure of the population in many regions of South America. Simulations of flash floods in these watersheds are very challenging, due to the complex morphology, the insufficient hydrometeorological data, and the uncertainty posed by the variability of sediment concentration. To address these issues, we develop a high-resolution numerical model of the non-linear shallow water equations, coupled with the mass conservation of sediment, and considering the density effects and changes of rheology in the momentum equation. Based on these simulations we develop a real-time early-warning system, by creating a surrogate model or meta-model from the simulations. Using a small set of parameters, we define storms for a wide range of meteorological conditions, and utilize the high-fidelity model results to create a database of flood propagation under different conditions. Through this second model we perform a sophisticated interpolation/regression, and approximate efficiently the flow depths and velocities. This is the first application of its kind in the Andes region, which can be used to improve the prediction of flood hazard in real conditions, employing low computational resources. We also create a framework to develop early warning systems, and to help decision makers and city planners in these mountain regions
- ItemArtificial recharge effects in water balance of a peri-urban semi-arid catchment: a case study in an Andean aquifer using WEAP-MODFLOW(2022) Pedro Sanzana; Melissa Vargas; Mauricio Muñoz; Cristobal Soto; Gironas Leon, Jorge Alfredo; Isabelle Braud
- ItemAssessing Reservoir Performance under Climate Change. When Is It Going to Be Too Late If Current Water Management Is Not Changed?(2020) Cristián Chadwick; Gironas Leon, Jorge Alfredo; Pilar Barría; Sebastián Vicuña; Francisco Meza; CEDEUS (Chile)
- ItemBias adjustment to preserve changes in variability: the unbiased mapping of GCM changes(2023) Cristián Chadwick; Gironas Leon, Jorge Alfredo; Fernando González-Leiva; Sebastián Aedo; CEDEUS (Chile)
- ItemErratum: Assessing groundwater recharge in an Andean closed basin using isotopic characterization and a rainfall-runoff model: Salar del Huasco basin, Chile(2016) Uribe, J.; Muñoz, J.F.; Gironas Leon, Jorge Alfredo; Oyarzún, R.; Aguirre, E.; Aravena, R.
- ItemGroundwater Contribution to Sewer Network Baseflow in an Urban Catchment-Case Study of Pin Sec Catchment, Nantes, France(2020) Fabrice Rodriguez; Amélie-Laure Le Delliou; Hervé Andrieu; Gironas Leon, Jorge Alfredo; CEDEUS (Chile)
- ItemImpactos y Adaptación en Infraestructura(2019) Gironas Leon, Jorge Alfredo; Gonzalo Yáñez
- ItemImpacts of Channel Network Type on the Unit Hydrograph(2020) Kelsey Czyzyk; Dario Mirossi; Almoatasem Abdoulhak; Sediqa Hassani; Jeffrey D. Niemann; Gironas Leon, Jorge Alfredo; CEDEUS (Chile)
- ItemImpacts of Urbanization and Land Use Change over Water Resources(Springer, 2021) Bunster Bustamante, Tomas Ignacio; Gironas Leon, Jorge Alfredo; Rojas Quezada, Carolina Alejandra; Bonilla Meléndez, Carlos AlbertoAnthropogenic land use changes have taken place through time, and will continue in the future as the country develops. Such changes have affected the occurrence of hydrological processes, and impacted water resources. This chapter describes these changes and their evolution through time. Urban and population growth, expansion and intensification of agriculture and productive forestry, and the occurrence of wildfires in Chile are characterized. Furthermore, the main impacts over water resources and current practices to cope with these changes are presented. Finally, future challenges are described, together with the concluding remarks.
- ItemRiver mouths and coastal lagoons in central Chile(2017) Cienfuegos, R.; Campino, J.R.; Gironas Leon, Jorge Alfredo; Almar, R.; Villagrán, M.
- ItemUsing standardized precipitation and runoff indices for the identification of extraordinary drought events in Chile(2015) Fernández, B.; Gironas Leon, Jorge Alfredo
- ItemWater Footprint of Cities: A Review and Suggestions for Future Research(2015) Paterson, Willa; Rushforth, Richard; Ruddell, Benjamin L.; Konar, Megan; Ahams, Ikechukwu C.; Gironas Leon, Jorge Alfredo; Mijic, Ana; Mejia, Alfonso; CEDEUS (Chile)