Browsing by Author "Saenz, Jon"
Now showing items 1-20 of 46
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An efficient implementation of kernel density estimation for multi-core and many-core architectures
López Novoa, Unai; Sáenz Aguirre, Jon ; Mendiburu Alberro, Alexander; Miguel Alonso, José (Sage, 2015-03-16)Kernel density estimation (KDE) is a statistical technique used to estimate the probability density function of a sample set with unknown density function. It is considered a fundamental data-smoothing problem for use with ... -
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 ... -
Análisis estadístico y predicción de viento
Carreno Madinabeitia, Sheila (2021-06-01)El objetivo principal de esta tesis es el análisis estadístico del viento en diferentes ámbitos relacionados, como son dos escalas temporales, extremos y una metodología de evaluación bidimensional.El primero es la predicción ... -
Análisis sociofísico de la España vaciada: estudio de la evolución de regiones despobladas mediante el modelo de Axelrod
Fernández de Barrena Machón, Gonzalo (2024-05-10)[ES] Uno de los mayores problemas de España es la despoblación que sufren sus zonas rurales. Para analizar este fenómeno, los sociólogos han llevado a cabo diversos estudios durante los últimos años. En este trabajo se ... -
Aplicación de técnicas estadísticas en el estudio de fenómenos ambientales y ecosistémicos
Polanco Martínez, Josué Moisés (2014-01-28)[ES]En esta memoria se presentan cuatro casos de estudio que tratan sobre tres temas relacionados con los fenómenos ambientales y ecosistémicos. El primer tema está relacionado con la contaminación atmosférica y la calidad ... -
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 ... -
Daily scale wintertime sea surface temperature and IPC-Navidad variability in the southern Bay of Biscay from 1981 to 2010
Esnaola Aldanondo, Ganix; Sáenz Aguirre, Jon ; Zorita, Eduardo; Fontán, A.; Valencia, V.; Lazure, P. (Copernicus Gesellschaft MBH, 2013)The combination of remotely sensed gappy Sea surface temperature (SST) images with the missing data filling DINEOF (data interpolating empirical orthogonal functions) technique, followed by a principal component analysis ... -
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, ... -
Eguratseko dinamikaren eredu sinplifikatua
Alonso Ajuria, Kerman (2020-12-15)[EUS] Bortizitate Barotropikoaren Ekuazioan oinarritutako modelo bat inplementatu da Python programazio lengoaiean. Modeloaren mugapen teorikoak eta metodo numerikoetatik eratorritako erroreen eraginak aztertu dira, eta ... -
Eguratseko energia potentzial eskuragarria: 1979-2019
Sarasua Etxeberria, Mikel (2021-12-13)[EUS] 1955 urtean Lorenz-ek definitutako eguratseko energia potentzial eskuragarriaren banaketa espazialak eta eboluzioa aztertu dira. Energia horren maximo eta minimoen zergatiak azaldu dira eta denboran zehar izandako ... -
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 ... -
Espectroscopía visible e infrarroja de Júpiter
[ES] En este proyecto se aborda el estudio espectroscópico de la luz reflejada por la atmósfera de Júpiter en el rango visible e infrarrojo cercano del espectro. Se emplean como referencia dos medidas observacionales y con ... -
Estimaciones de reciclaje de humedad sobre continentes a partir del reanálisis ERA5
Recalde Feo, Jon (2023-01-25)[ES] La tasa de reciclaje de la humedad es la fracción de la lluvia que se ha evaporado en una región que precipita sobre la misma región. Este valor cambia con la escala de la región analizada. Dependiendo si tenemos en ... -
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 ...