Evolution of the energy consumed by street lighting in Spain estimated with DMSP-OLS data
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2014
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Pergamon-Elsevier Science Ltd.
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We present the results of the analysis of satellite imagery to study light pollution in Spain. Both calibrated and non-calibrated DMSP-OLS images were used. We describe the method to scale the non-calibrated DMSP-OLS images which allows us to use differential photometry techniques in order to study the evolution of the light pollution. Population data and DMSP-OLS satellite calibrated images for the year 2006 were compared to test the reliability of official statistics in public lighting consumption. We found a relationship between the population and the energy consumption which is valid for several regions. Finally the true evolution of the electricity consumption for street lighting in Spain from 1992 to 2010 was derived; it has been doubled in the last 18 years in most of the provinces. (C) 2013 Elsevier Ltd. All rights reserved,
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© Pergamon-Elsevier Science Ltd.
This research was supported by an FPU grant (Formación de Profesorado Universitario) from the Spanish Ministry of Science and Innovation (MCINN) to Alejandro Sánchez de Miguel. This work has been partially funded by the Spanish MICINN (AYA2009-10368, AYA2012-30717, AYA2012-31277), by the Spanish program of International Campus of Excellence Moncloa (CEI) and by the Madrid Regional Government through the AstroMadrid Project (CAM S2009/ESP-1496, http://www.laeff.cabinta-csic.es/ projects/astromadrid/main/index.php). The support of the Spanish Network for Light Pollution Studies (Ministerio de Economía y Competitividad, Acción Complementaria AYA2011-15808-E) is acknowledged. Thanks goes also to Francisco Ocaña and Jessica Starkey for the critical review of this text.