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Título : Mathematical interpolation methods for spatial estimation of global horizontal irradiation in Castilla-León, Spain: a case study
Autor : Rodríguez Amigo, María del Carmen
Diez Mediavilla, Montserrat
González Peña, David
Pérez Burgos, Ana Mª
Alonso Tristán, Cristina
Publicado en: Solar Energy. 2017, V. 151, p 14–21
Editorial : Elsevier
Fecha de publicación : jul-2017
Fecha de disponibilidad: 15-jul-2019
ISSN : 0038-092X
Resumen : Four spatial interpolation methods (Inverse Distance Weighted, Spline, Kriging and Natural Neighbor) and their different variations are employed to map Global Horizontal Irradiation (GHI) in Castilla-León, Spain. The work has been performed using the software ArcGis, widely used in geostatistical applications, showing the versatility of the system and its applicability to climate data. The measuring network consists of 71 ground meteorological stations that use seven complete years of half-hourly data sets, yielding annual daily averages of GHI. The interpolation results are tested against data from the four Spanish National Meteorological Agency (AEMET) stations available in the region using standard statistical indicators (RMSE, MBE, MAPE and MAE). An additional partial cross validation of the results, which excludes five stations from the measuring network, employs different criteria to verify the results of the interpolation methods applied. This work contributes to the classification of interpolation methods to obtain climatological data across large areas with a low number of irregularly distributed of measurement points and with a low topographic complexity. The Universal Kriging method with quadratic semi-variogram shows the best results taking into account the RMSE and MAE statistical indicators
Palabras clave: Interpolation methods
Solar radiation
Ground meteorological network
ArcGis
URI : http://hdl.handle.net/10259/4495
Versión del editor: https://doi.org/10.1016/j.solener.2017.05.024
Aparece en las colecciones: Artículos SWIFT

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