BackBrowsing Artículos by Author "Ibarra Berastegi, Gabriel"
Now showing items 1-14 of 14
-
Changes in the simulation of atmospheric instability over the Iberian Peninsula due to the use of 3DVAR data assimilation
(Copernicus Publications, 2021-06-18)[EN] Abstract. The ability of two downscaling experiments to correctly simulate thermodynamic conditions over the Iberian Peninsula (IP) is compared in this paper. To do so, three parameters used to evaluate the unstable ... -
Combining random forests and physics-based models to forecast the electricity generated by ocean waves: A case study of the Mutriku wave farm
(Pergamon-Elsevier, 2019-10-01)This paper combines random forests with physics-based models to forecast the electricity output of the Mutriku wave farm on the Bay of Biscay. The period analysed was 2014-2016, and the forecast horizon was 24 h in 4-h ... -
Downscaling of surface moisture flux and precipitation in the Ebro Valley (Spain) using analogues and analogues followed by random forests and multiple linear regression
(Copernicus Gesellschaft, 2011)In this paper, reanalysis fields from the ECMWF have been statistically downscaled to predict from large-scale atmospheric fields, surface moisture flux and daily precipitation at two observatories (Zaragoza and Tortosa, ... -
Electricity production, capacity factor, and plant efficiency index at the Mutriku wave farm (2014–2016)
(Elsevier, 2018-01-01)Mutriku has recently become the first commercial wave farm to release its operating data. The plant has 14 OWC operating turbines, and this study has conducted an analysis of hourly data corresponding to the 2014–2016 ... -
Extension and improvement of synchronous linear generator based point absorber operation in high wave excitation scenarios
(Elsevier, 2021-11-01)[EN]The exploitation of marine wave energy resource has led to the design of numerous Wave Energy Converter (WEC) configurations. The power absorption of a WEC is tightly related to its physical properties and the ... -
Global estimations of wind energy potential considering seasonal air density changes
(Pergamon-Elsevier, 2019-11-15)The literature typically considers constant annual average air density when computing the wind energy potential of a given location. In this work, the recent reanalysis ERA5 is used to obtain global seasonal estimates of ... -
Harmonized evaluation of daily precipitation downscaled using SDSM and WRF+WRFDA models over the Iberian Peninsula
(Springer, 2019-08)There have been numerous statistical and dynamical downscaling model comparisons. However, differences in model skill can be distorted by inconsistencies in experimental set-up, inputs and output format. This paper harmonizes ... -
Historical Evolution of theWave Resource and Energy Production off the Chilean Coast over the 20th Century
(MDPI, 2018-09)The wave energy resource in the Chilean coast shows particularly profitable characteristics for wave energy production, with relatively high mean wave power and low inter-annual resource variability. This combination is ... -
MIDAS: A Benchmarking Multi-Criteria Method for the Identification of Defective Anemometers in Wind Farms
(MDPI, 2018-12-22)A novel multi-criteria methodology for the identification of defective anemometers is shown in this paper with a benchmarking approach: it is called MIDAS: multi-technique identification of defective anemometers. The ... -
Optimal strategies of deployment of far offshore co-located wind-wave energy farms
(Elsevier, 2022-01-01)[EN] The most profitable offshore energy resources are usually found away from the coast. Nevertheless, the accessibility and grid integration in those areas are more complicated. To avoid this problematic, large scale ... -
Pitch Angle Misalignment Correction Based on Benchmarking and Laser Scanner Measurement in Wind Farms
(MDPI, 2018-12-01)In addition to human error, manufacturing tolerances for blades and hubs cause pitch angle misalignment in wind turbines. As a consequence, a significant number of turbines used by existing wind farms experience power ... -
Problem-Based Learning in University Studies on Renewable Energies: Case of a Laboratory Windpump
(MDPI, 2020-03-23)In the last eight years, the new faculty of Engineering in Renewable Energies at the University of the Basque Country in Eibar has developed several sustainability goals related to clean energy and climate change, but also ... -
The Sailor diagram – A new diagram for the verification of two-dimensional vector data from multiple models
(Copernicus Gesellschaft, 2020-07-15)A new diagram is proposed for the verification of vector quantities generated by multiple models against a set of observations. It has been designed with the objective, as in the Taylor diagram, of providing a visual ... -
Using 3DVAR data assimilation to measure offshore wind energy potential at different turbine heights in the West Mediterranean
(Elsevier, 2017-09-19)In this article, offshore wind energy potential is measured around the Iberian Mediterranean coast and the Balearic Islands using the WRF meteorological model without 3DVAR data assimilation (the N simulation) and with ...