Browsing by Author "Luna Abril, Patricio Javier"

Now showing 1 - 2 of 2

Análisis del comportamiento hidráulico de elementos de drenaje superficial en la ciudad de Cuenca – sector Universidad del Azuay – mediante el uso del programa SWMM
(Universidad de Cuenca, 2022-01-05) Luna Abril, Patricio Javier; Terán Solano, Doménica; Sánchez Cordero, Esteban Remigio
The study seeks to analyze drain inlets in Av. 24 de Mayo, in the city of Cuenca. Due to the recurring problem of flooding occurs at several points, as in the old Gapal railway station, it is addressed from a technical perspective that includes the hydraulic behavior of drain inlets, whose efficiency can be estimated based on several parameters such as the longitudinal and transverse slopes of the streets, roughness coefficients, as well as the geometric configuration of the grates. Carrying out a comprehensive study of the elements within the system through the use of computer simulation programs such as SWMM 5.1, the surface drainage system that currently exists is modelled and the operation of the improvement proposals is evaluated under the same conditions. A fundamental component is having adequate rainfall information, which in the present case study consists of two recorded historical events known to have caused flooding problems, as well as design storms obtained from IDF curves with a return period of 10 years. The rationale for the evaluation of the system is based on classifications called hazard criteria, which synthesize the potential danger of runoff flows based on the depth, speed or the interaction of both parameters. For this case study, three analysis criteria are considered, which in addition to their function of evaluation, act as indicators of those critic points where attention is required. As a first alternative, the replacement of the current grates by standardized models with higher hydraulic efficiencies is proposed, however, this resulting measure is insufficient for the complete system, therefore, through a redistribution of drain inlets and the incorporation of new structures in some points, it is possible to define a surface drainage system that adequately meets the risk criteria considered; suggesting a basis for future work that incorporates other lines of study such as river interaction.
Assessing the Effectiveness of the Three-Cornered Hat Data Fusion Technique for Satellite Precipitation Data and Its Impact on Runoff Forecasting
(Universidad de Cuenca, 2024-10-01) Luna Abril, Patricio Javier; Muñoz Pauta, Paul Andrés; Célleri Alvear, Rolando Enrique
Runoff forecasting remains a critical challenge in complex basins around the world, where data scarcity and detection problems limit the forecasting performance. Data fusion offers a promising alternative, with the potential to generate enhanced satellite precipitation datasets for use in data-driven runoff forecasting models. This study investigates the effectiveness of the Three-Cornered Hat (TCH) method for fusing satellite precipitation datasets and its impact on runoff forecasting. The TCH method was applied to three satellite precipitation products (SPP), creating a fused dataset that was compared to two benchmark products: IMERG-ER and MSWEP. While the TCH method demonstrated suitability for forecasting in data-scarce regions, it did not outperform the benchmark products, showing comparable results to IMERG- ER. Interestingly, MSWEP exhibited superior performance across different lead times, suggesting that the fusion of multiple precipitation data sources may enhance the performance of runoff forecasting models. The study highlights a key limitation of the TCH method at fine temporal scales. In certain conditions, data may be considered statistically dependent, which could have an adverse effect on the effectiveness of the method. Future research should focus on resolving these limitations and exploring the potential of integrating diverse data sources to unlock further improvements in runoff forecasting.