Browsing Artículos, Comunicaciones, Libros by Author "Ibarra Berastegi, Gabriel"
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Analysis of atmospheric thermodynamics using the R package aiRthermo
Sáenz Aguirre, Jon ; González Rojí, Santos José; Carreno Madinabeitia, Sheila; Ibarra Berastegi, Gabriel (Elsevier, 2018-10-23)The publicly available R package aiRthermo is presented in this study, which allows the user to process information relative to atmospheric thermodynamics, ranging from calculating the density of dry or moist air and ... -
Applying the Kolmogorov–Zurbenko filter followed by random forest models to 7Be observations in Spain (2006–2021)
Nafarrate, Ander; Petisco Ferrero, Susana ; Idoeta Hernandorena, Raquel; Herranz Soler, Margarita; Sáenz Aguirre, Jon ; Ulazia Manterola, Alain ; Ibarra Berastegi, Gabriel (Elsevier, 2024-05)n this study, we analysed 7Be weekly surface measurements from six Spanish laboratories from 2006 to 2021. The Kolmogorov–Zurbenko filter was applied to the six 7Be time series, and following an iterative process, the ... -
Changes in the simulation of atmospheric instability over the Iberian Peninsula due to the use of 3DVAR data assimilation
González Rojí, Santos José; Carreno Madinabeitia, Sheila; Sáenz Aguirre, Jon ; Ibarra Berastegi, Gabriel (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 ... -
CMIP6 projections for global offshore wind and wave energy production (2015–2100)
Ibarra Berastegi, Gabriel; Sáenz Aguirre, Jon ; Ulazia Manterola, Alain ; Sáenz Aguirre, Jon ; Esnaola Aldanondo, Ganix (Nature, 2023-10)Three-hourly CMIP6 projections have been used in conjuction with the CSIRO WaveWatchIII wave model to calculate the global trends in offshore wind and wave energy for the SSP585 and SSP126 scenarios until 2100. The results ... -
Combining random forests and physics-based models to forecast the electricity generated by ocean waves: A case study of the Mutriku wave farm
Serras Malillos, Paula; Ibarra Berastegi, Gabriel; Sáenz Aguirre, Jon ; Ulazia Manterola, Alain (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
Ibarra Berastegi, Gabriel; Sáenz Aguirre, Jon ; Ezcurra Talegón, Agustín; Elías Saenz, Ana Josefina ; Díaz de Argandoña González, Javier (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)
Ibarra Berastegi, Gabriel; Sáenz Aguirre, Jon ; Ulacia Manterola, Alain; Serras Malillos, Paula; Esnaola Aldanondo, Ganix; García-Soto, Carlos (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
Sáenz Aguirre, Aitor; Ulazia Manterola, Alain ; Ibarra Berastegi, Gabriel; Sáenz Aguirre, Jon (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 ... -
Floating wind turbine energy and fatigue loads estimation according to climate period scaled wind and waves
Sáenz Aguirre, Aitor; Ulazia Manterola, Alain ; Ibarra Berastegi, Gabriel; Sáenz Aguirre, Jon (Elsevier, 2022-11)Offshore wind power is one of the fastest-growing renewable energy sources, as it is expected to play a major role in the transition towards sustainability and net zero emissions. Despite its potential, the interaction of ... -
Future electricity production at Mutriku Wave Energy Plant estimated from CMIP6 wave climate projections (2015–2100)
Carreno Madinabeitia, Sheila; Serras Malillos, Paula; Ibarra Berastegi, Gabriel; Sáenz Aguirre, Jon ; Ulazia Manterola, Alain (Elsevier, 2024-01-01)Renewable marine energy sources are rapidly developing worldwide. With numerous operational marine power plants in existence, it is becoming increasingly important to explore their potential. Hence, this study aims ... -
Future offshore wind energy evolution in the Bay of Biscay
Ezpeleta Lopetegui, Hodei; Ulazia Manterola, Alain ; Ibarra Berastegi, Gabriel; Sáenz Aguirre, Jon ; Carreno Madinabeitia, Sheila; Aristondo Echeberria, Oihana (Elsevier, 2024-05)A relevant point near the Biscay Marine Energy Platform (BiMEP) has been chosen and data from the ERA5 reanalysis and CMIP6 datasets in future SSP5-85 scenario (wind and wave data) have been used to analyse the energy ... -
Global estimations of wind energy potential considering seasonal air density changes
Ulazia Manterola, Alain ; Sáenz Aguirre, Jon ; Ibarra Berastegi, Gabriel; González Rojí, Santos José; Carreno Madinabeitia, Sheila (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
González Rojí, Santos José; Wilby, Robert L.; Sáenz Aguirre, Jon ; Ibarra Berastegi, Gabriel (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
Ulacia Manterola, Alain; Peñalba Retes, Markel; Rabanal, Arkaitz; Ibarra Berastegi, Gabriel; Ringwood, John D.; Sáenz Aguirre, Jon (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 ... -
Long-term changes in offshore wind power density and wind turbine capacity factor in the Iberian Peninsula (1900–2010)
Carreno Madinabeitia, Sheila; Ibarra Berastegi, Gabriel; Sáenz Aguirre, Jon ; Ulazia Manterola, Alain (Elsevier, 2021-03-23)This study analysed temporal and spatial changes in offshore wind power density (WPD) and capacity factor (CF) around the Iberian Peninsula during the 20th century by analysing data from ERA20 and ERA5. Both WPD and CF ... -
MIDAS: A Benchmarking Multi-Criteria Method for the Identification of Defective Anemometers in Wind Farms
Rabanal, Arkaitz; Ulacia Manterola, Alain; Ibarra Berastegi, Gabriel; Sáenz Aguirre, Jon ; Elosegui, Unai (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 ... -
Multi-objective environmental model evaluation by means of multidimensional kernel density estimators: Efficient and multi-core implementations
López Novoa, Unai ; Sáenz Aguirre, Jon ; Mendiburu Alberro, Alexander; Miguel Alonso, José; Errasti Arrieta, Iñigo; Esnaola Aldanondo, Ganix; Ezcurra Talegón, Agustín; Ibarra Berastegi, Gabriel (2015-01-01)We propose an extension to multiple dimensions of the univariate index of agreement between Probability Density Functions (PDFs) used in climate studies. We also provide a set of high-performance programs targeted both to ... -
Optimal strategies of deployment of far offshore co-located wind-wave energy farms
Sáenz Aguirre, Aitor; Sáenz Aguirre, Jon ; Ulazia Manterola, Alain ; Ibarra Berastegi, Gabriel (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 ... -
Paradigmatic case of long-term colocated wind–wave energy index trend in Canary Islands
Ulazia Manterola, Alain ; Sáenz Aguirre, Jon ; Sáenz Aguirre, Aitor; Ibarra Berastegi, Gabriel; Carreno Madinabeitia, Sheila (Elsevier, 2023-05)Previous studies based on remote sensing data and reanalysis have identified strong historical increments of wind speed in the area around the Canary Islands (Spain) without appreciating any increment of wave height. This ... -
Performance variations of wave energy converters due to global long-term wave period change (1900–2010)
Ulazia Manterola, Alain ; Sáenz Aguirre, Aitor; Ibarra Berastegi, Gabriel; Sáenz Aguirre, Jon ; Carreno Madinabeitia, Sheila; Esnaola Aldanondo, Ganix (Elsevier, 2023-04)Long-term ocean climate effects on wave energy are often analysed from the viewpoint of the well-known increment of wave height over the decades. However, this increment associated with the increase of wave energy flux and ...