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Luis Cea      
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Luis Cea published an article in February 2019.
Top co-authors See all
Moncho Gomez-Gesteira

129 shared publications

Environmental Physics Laboratory (EPHYSLAB), Universidad de Vigo, Campus As Lagoas s/n, 32004 Ourense, Spain

Jeronimo Puertas

52 shared publications

Department of Civil Engineering; Universidade da Coruña, Water and Environmental Engineering Group; A Coruña Spain

J.M. Domínguez

29 shared publications

Environmental Physics Laboratory, Universidade de Vigo, Ourense, Spain

Joaquín Suárez

23 shared publications

Water and Environmental Engineering Group, Universidade da Coruña, A Coruña, Spain

J. González-Cao

13 shared publications

Environmental Physics Laboratory, Universidade de Vigo, Ourense, Spain

42
Publications
37
Reads
13
Downloads
169
Citations
Publication Record
Distribution of Articles published per year 
(2004 - 2019)
Total number of journals
published in
 
30
 
Publications See all
Article 0 Reads 0 Citations Impact of Urban Growth and Changes in Land Use on River Flood Hazard in Villahermosa, Tabasco (Mexico) Omar S. Areu-Rangel, Luis Cea, Rosanna Bonasia, Victor J. Es... Published: 12 February 2019
Water, doi: 10.3390/w11020304
DOI See at publisher website ABS Show/hide abstract
The city of Villahermosa, a logistical center in the State of Tabasco’s economy, is affected by recurrent river floods. In this study, we analyzed the impact of two factors that are the most probable causes of this increase in flood hazard: changes in land use in the hydrological catchments upstream of the city, and the uncontrolled urbanization of the floodplains adjacent to the main river channels. Flood discharges for different return periods were evaluated, considering land uses of the catchments, both as they were in 1992 and as they are today. These flood discharges were then used in a 2D shallow water model to estimate the increase of water depths in the city from 1992 to the present day. To evaluate the influence of urban expansion on inundation levels, three future urbanization scenarios were proposed on the basis of the urban growth rate forecast for 2050. Results confirm that the change in land use in the hydrological catchments is the main factor that explains the increase in inundation events observed over recent years. This study also provides useful insights for future city planning that might help to minimize the flood impact on Villahermosa.
Article 0 Reads 0 Citations A rapid flood inundation model for hazard mapping based on least squares support vector machine regression María Bermúdez, Luis Cea, Jerónimo Puertas Published: 23 January 2019
Journal of Flood Risk Management, doi: 10.1111/jfr3.12522
DOI See at publisher website
Article 0 Reads 0 Citations Effect of rainfall uncertainty on the performance of physically based rainfall-runoff models Ignacio Fraga, Luis Cea, Jerónimo Puertas Published: 29 November 2018
Hydrological Processes, doi: 10.1002/hyp.13319
DOI See at publisher website
Article 0 Reads 1 Citation Incorporating Antecedent Moisture Conditions and Intraevent Variability of Rainfall on Flood Frequency Analysis in Poorl... L. Cea, I. Fraga Published: 08 November 2018
Water Resources Research, doi: 10.1029/2018wr023194
DOI See at publisher website
Article 0 Reads 2 Citations An Accelerated Tool for Flood Modelling Based on Iber Orlando García-Feal, José González-Cao, Moncho Gómez-Gesteir... Published: 16 October 2018
Water, doi: 10.3390/w10101459
DOI See at publisher website ABS Show/hide abstract
This paper presents Iber+, a new parallel code based on the numerical model Iber for two-dimensional (2D) flood inundation modelling. The new implementation, which is coded in C++ and takes advantage of the parallelization functionalities both on CPUs (central processing units) and GPUs (graphics processing units), was validated using different benchmark cases and compared, in terms of numerical output and computational efficiency, with other well-known hydraulic software packages. Depending on the complexity of the specific test case, the new parallel implementation can achieve speedups up to two orders of magnitude when compared with the standard version. The speedup is especially remarkable for the GPU parallelization that uses Nvidia CUDA (compute unified device architecture). The efficiency is as good as the one provided by some of the most popular hydraulic models. We also present the application of Iber+ to model an extreme flash flood that took place in the Spanish Pyrenees in October 2012. The new implementation was used to simulate 24 h of real time in roughly eight minutes of computing time, while the standard version needed more than 15 h. This huge improvement in computational efficiency opens up the possibility of using the code for real-time forecasting of flood events in early-warning systems, in order to help decision making under hazardous events that need a fast intervention to deploy countermeasures.
Article 1 Read 1 Citation Conversion of Vertical Slot Fishways to Deep Slot Fishways to Maintain Operation during Low Flows: Implications for Hydr... Luís Pena, Jerónimo Puertas, María Bermúdez, Luis Cea, Enriq... Published: 10 July 2018
Sustainability, doi: 10.3390/su10072406
DOI See at publisher website ABS Show/hide abstract
Deep slot fishways (DSF) are similar to vertical slot fishways (VSF) except that a sill has been placed at the base of the slot, and thus require a lower discharge to operate. The conversion of a VSF to a DSF, which requires minimal design modifications, can make for a more flexible design in inflow management, maintaining the correct operation of the fishway in periods of limited water availability. It is, however, crucial to understand the new flow conditions that will be created inside the fishway, and their implications for fish passage. In this paper, the hydrodynamics of DSF were studied for two different pool configurations and five sill heights. The investigation comprised the analysis of the water surface configuration, the velocity and turbulence fields, as well as the definition of the equations that related discharges to depths in the pools. The DSF designs compared well in terms of water surface patterns and maximum velocities with VSFs, but resulted in a more complex three-dimensional flow pattern and increased turbulence levels. Further testing with fish is needed to analyze whether the benefits of retrofitting a VSF by adding a sill during low flows are cancelled out by increased fish passage difficulty.
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