Evaluación de la radiación solar en Bogotá a partir de imágenes del satélite Goes
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Suárez Vargas, Diego Alejandro
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En el siguiente trabajo se aplica una metodología para validar y verificar un modelo de radiación solar global en la ciudad Bogotá, desarrollado a partir de imágenes satelitales del canal visible y con datos de estaciones de superficie. Se usó como base la ecuación establecida por Justus, Paris and Tarpley en 1986, a la cual se le realizó una corrección por nubosidad. Se estimaron las series horarias y los acumulados diarios para los meses de enero, mayo, junio y octubre de 2011, en diferentes estaciones de la ciudad, obteniendo en general, subestimación del recurso solar con porcentajes entre el al en los acumulados diarios y con valores entre a para el coeficiente R-cuadrado de las series horarias a lo largo del mes. Igualmente, se construyeron mapas de radiación solar global para cada trimestre climático, usando la información registrada por las estaciones desde enero de 2007 hasta diciembre de 2011.
Abstract. In this paper, we apply a methodology to validate and verify a model of global solar radiation in the city Bogotá, developed from satellite imagery visible channel and surface station data. Was used as the basis in equation established by Justus, Paris and Tarpley in 1986, which underwent a correction for cloud cover. Were estimated time series and accrued daily for the months of january, may, july and october 2011, in different points of the city, obtaining overall underestimation of solar resources with rates between to in the daily cumulative and values for the coefficient R-square between a of time series throughout the month. Also built global solar radiation maps for each quarter climate, using the information recorded by stations from january 2007 to december 2011.
Abstract. In this paper, we apply a methodology to validate and verify a model of global solar radiation in the city Bogotá, developed from satellite imagery visible channel and surface station data. Was used as the basis in equation established by Justus, Paris and Tarpley in 1986, which underwent a correction for cloud cover. Were estimated time series and accrued daily for the months of january, may, july and october 2011, in different points of the city, obtaining overall underestimation of solar resources with rates between to in the daily cumulative and values for the coefficient R-square between a of time series throughout the month. Also built global solar radiation maps for each quarter climate, using the information recorded by stations from january 2007 to december 2011.