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Luis Garrote   Dr.  University Educator/Researcher 
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Luis Garrote published an article in March 2019.
Top co-authors
Luis Garrote

103 shared publications

Department of Civil Engineering: Hydraulics, Energy and Environment, Universidad Politécnica de Madrid, 28040 Madrid, Spain

Ana Iglesias

57 shared publications

Department of Agricultural Economics & CEIGRAM, Universidad Politécnica de Madrid, Madrid 28040, Spain

Martin Molina

10 shared publications

Department of Artificial Intelligence, Universidad Politécnica de Madrid, Boadilla del Monte, Madrid, Spain

Francisco Flores-Montoya

1 shared publications

Ministerio de Fomento

Raquel Fuentetaja

1 shared publications

Departamento de Informática, Universidad de Carlos III, Madrid, Spain

103
Publications
214
Reads
20
Downloads
241
Citations
Publication Record
Distribution of Articles published per year 
(1995 - 2019)
Total number of journals
published in
 
24
 
Publications See all
Article 0 Reads 0 Citations Experimental Analysis of the Influence of Aeration in the Energy Dissipation of Supercritical Channel Flows Juan José Rebollo, David López, Luis Garrote, Tamara Ramos, ... Published: 20 March 2019
Water, doi: 10.3390/w11030576
DOI See at publisher website ABS Show/hide abstract
Energy dissipation structures play an important role in flood risk management. Many variables need to be considered for the design of these structures. Aeration has been one of the more studied phenomena over the last years, due to its influence in the performance of hydraulic structures. The purpose of the work presented in this article is to experimentally characterize the effects of aeration on boundary friction in supercritical and fully turbulent flows. The physical model used to analyze the aeration effects consists of a spillway chute 6.5 m high and a stilling basin of 10 m length and 2 m high. A pump and compressor supply the water-air mixture and are controlled at the entrance by valves and flowmeters. The ensuing channel is monitored to determine the velocity profile and air concentration of the flow into the stilling basin. The average values of both variables and Manning’s coefficient along the channel are used to determine the relation between air concentration and energy dissipation by friction. A velocity increase with greater air entrainment has been found in all scenarios since friction is the main energy dissipation mechanism in open channels flow. Finally, an equation is proposed to characterize this evolution based on the results obtained.
Article 0 Reads 0 Citations Hydrological Risk Analysis of Dams: The Influence of Initial Reservoir Level Conditions Ivan Gabriel-Martin, Alvaro Sordo-Ward, Luis Garrote, Isabel... Published: 05 March 2019
Water, doi: 10.3390/w11030461
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In this paper, we present a method to assess the influence of the initial reservoir level in hydrological dam safety and risk analysis. Traditionally, in professional practice, the procedures applied are basically deterministic. Several physical processes are defined deterministically, according to the criteria of the designer (usually in the conservative side), although there is a high degree of uncertainty regarding these processes. A relevant variable is the reservoir level considered at the beginning of flood events. Hydrological dam safety assessment methods traditionally assume that the reservoir is initially full when it receives the design flood, thus, staying in the conservative side when designing a new dam. However, the distribution of reservoir levels at the beginning of flood episodes takes more importance for evaluating the real risk for the dams in operation. We analyzed three different scenarios—initial reservoir level equal to maximum normal level, equal to a maximum conservation level, and following the probability distribution from the historical records. To do so, we presented a method applied to a gated-spillway dam located in the Tagus river basin. A set of 100,000 inflow hydrographs was generated through a Monte Carlo procedure, by reproducing the statistics of the main observed hydrograph characteristics—peak flow, volume, and duration. The set of 100,000 hydrographs was routed through the reservoir applying the Volumetric Evaluation Method as a flood control strategy. In order to compare the three scenarios, we applied an economic global risk index. The index combines the hydrological risk for the dam, linked to the maximum water level reached in the reservoir, during the flood routing, and the flood risk in the downstream river reach, linked to the discharge releases from the dam. The results showed the importance of accounting for the fluctuation of initial reservoir levels, for assessing the risk related to hydrological dam safety. Furthermore, a procedure to quantify the uncertainty associated with the effects of initial reservoir level on hydrological dam safety, has been proposed.
Article 0 Reads 0 Citations Vineyards in transition: A global assessment of the adaptation needs of grape producing regions under climate change David Santillán, Ana Iglesias, Isabelle La Jeunesse, Luis Ga... Published: 01 March 2019
Science of The Total Environment, doi: 10.1016/j.scitotenv.2018.12.079
DOI See at publisher website
Article 0 Reads 0 Citations Tradeoff between economic and environmental costs and benefits of hydropower production at run-of-river-diversion scheme... M.D. Bejarano, A. Sordo-Ward, I. Gabriel-Martin, L. Garrote Published: 01 March 2019
Journal of Hydrology, doi: 10.1016/j.jhydrol.2019.03.048
DOI See at publisher website
Article 0 Reads 0 Citations Blue Water in Europe: Estimates of Current and Future Availability and Analysis of Uncertainty Alvaro Sordo-Ward, Isabel Granados, Ana Iglesias, Luis Garro... Published: 26 February 2019
Water, doi: 10.3390/w11030420
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This study presents a regional assessment of future blue water availability in Europe under different assumptions. The baseline period (1960 to 1999) is compared to the near future (2020 to 2059) and the long-term future (2060 to 2099). Blue water availability is estimated as the maximum amount of water supplied at a certain point of the river network that satisfies a defined demand, taking into account specified reliability requirements. Water availability is computed with the geospatial high-resolution Water Availability and Adaptation Policy Assessment (WAAPA) model. The WAAPA model definition for this study extends over 6 million km2 in Europe and considers almost 4000 sub-basins in Europe. The model takes into account 2300 reservoirs larger than 5 hm3, and the dataset of Hydro 1k with 1700 sub-basins. Hydrological scenarios for this study were taken from the Inter-Sectoral Impact Model Inter-Comparison Project and included simulations of five global climate models under different Representative Concentration Pathways scenarios. The choice of method is useful for evaluating large area regional studies that include high resolution on the systems´ characterization. The results highlight large uncertainties associated with a set of local water availability estimates across Europe. Climate model uncertainties for mean annual runoff and potential water availability were found to be higher than scenario uncertainties. Furthermore, the existing hydraulic infrastructure and its management have played an important role by decoupling water availability from hydrologic variability. This is observed for all climate models, the emissions scenarios considered, and for near and long-term future. The balance between water availability and withdrawals is threatened in some regions, such as the Mediterranean region. The results of this study contribute to defining potential challenges in water resource systems and regional risk areas.
CONFERENCE-ARTICLE 26 Reads 0 Citations Stochastic assessment of the influence of reservoir operation in hydrological dam safety through risk indexes Ivan Gabriel-Martin, Alvaro Sordo-Ward, Luis Garrote, Isabel... Published: 15 November 2018
Proceedings, doi: 10.3390/ECWS-3-05811
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Hydrological dam safety assessment methods traditionally assume that the reservoir is full while it receives the design flood. In practice, reservoir management strategy determines the probability distribution of reservoir levels at the beginning of flood episodes. In this study we present a method to economically assess the influence of reservoir management strategy on hydrological dam safety and downstream flood risk. The method was applied to a gated-spillway dam located in the Tagus river basin. A set of 100000 inflow hydrographs was generated through a Monte Carlo procedure, reproducing the observed statistics of main hydrograph characteristics: peak flow, volume and duration. The set of 100000 hydrographs was routed through the reservoir applying the Volumetric Operation Method as flood control strategy. Three different scenarios were studied: initial reservoir level equal to maximum normal level, equal to a maximum conservation level and following the probability distribution of initial reservoir levels. In order to evaluate economically the influence of initial variable reservoir level and compare the three scenarios, a global risk index was applied. The index combines the hydrological risk for the dam, linked to the maximum water level experienced in the reservoir while the flood is routed, and the flood risk in the downstream river reach, linked to the discharge releases from the dam. The results highlighted the importance of considering the fluctuation of initial reservoir level for assessing the risk related to hydrological dam safety. Within the case study, the global risk index reduced its value up to 93 % if variable initial reservoir level is accounted, from 1445.6 x103 to 83 x103 euros.

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