Downscaling of global solar irradiation in R

Antoñanzas Torres, Fernando and Martínez de Pisón, F. Javier and Antoñanzas, Javier and Perpiñan Lamigueiro, Oscar (2013). Downscaling of global solar irradiation in R. Monografía (Working Paper). E.U.I.T. Industrial (UPM).

Description

Title: Downscaling of global solar irradiation in R
Author/s:
  • Antoñanzas Torres, Fernando
  • Martínez de Pisón, F. Javier
  • Antoñanzas, Javier
  • Perpiñan Lamigueiro, Oscar
Item Type: Monograph (Working Paper)
Date: 2013
Subjects:
Faculty: E.U.I.T. Industrial (UPM)
Department: Ingeniería Eléctrica [hasta 2014]
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Abstract

A methodology for downscaling solar irradiation from satellite-derived databases is described using R software. Different packages such as raster, parallel, solaR, gstat, sp and rasterVis are considered in this study for improving solar resource estimation in areas with complex topography, in which downscaling is a very useful tool for reducing inherent deviations in satellite-derived irradiation databases, which lack of high global spatial resolution. A topographical analysis of horizon blocking and sky-view is developed with a digital elevation model to determine what fraction of hourly solar irradiation reaches the Earth's surface. Eventually, kriging with external drift is applied for a better estimation of solar irradiation throughout the region analyzed. This methodology has been implemented as an example within the region of La Rioja in northern Spain, and the mean absolute error found is a striking 25.5% lower than with the original database.

More information

Item ID: 21824
DC Identifier: http://oa.upm.es/21824/
OAI Identifier: oai:oa.upm.es:21824
Deposited by: Oscar Perpiñán Lamigueiro
Deposited on: 02 Dec 2013 11:25
Last Modified: 19 Feb 2015 12:38
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