Resumen-Se considera que en los últimos años la temperatura superficial ha aumentado, este fenómeno puede deberse al cambio de uso de suelo, crecimiento de zonas urbanas y densidad poblacional dando lugar a fenómenos térmicos tales como las islas de calor. Mediante el uso de sensores remotos con banda térmica, es posible determinar las variaciones de temperatura superficial, su extensión e intensidad. El cantón Rumiñahui se encuentra ubicado en Ecuador, en la provincia de Pichincha, en el valle de Los Chillos, donde los asentamientos en las zonas urbanas ha ido en aumento en los últimos años, es por ello que se hace necesario el análisis de temperatura superficial además de su relación con otros factores tales como vegetación, agua y construcciones para determinar si estos son incidentes en la variación de la misma. Para ello se utilizaron dos imágenes Landsat 7 ETM+ la primera correspondiente al año 2001 y la segunda al año 2016 a partir de las cuales se determinó temperatura superficial e índices tales como NDVI (Índice Diferencial Normalizado de Vegetación), NDWI (Índice Diferencial Normalizado de Agua), NDBI (Índice Diferencial Normalizado de Construcciones) para establecer si existe una relación entre ellos mediante un análisis de correlación de variables obteniéndose que estos factores presentan una fuerte correlación con valores que varían entre 0,6 a 0,9. Finalmente, se determinó que las zonas con mayor temperatura se encuentran en el centro de la ciudad de Sangolquí y San Rafael.Palabras Claves-Agua, construcción, índices, temperatura, vegetación.Abstract-The superficial temperature is a phenomenon that in recent years, has increased considerably as well as the growth of urban areas and population density, all these factors lead to a number of climatic changes including the increase in surface temperature. Through the use of remote sensors with thermal band, it is possible to determine the variations in the surface temperature patterns, their extension and intensity. Rumiñahui canton is located in Ecuador, in the province of Pichincha, where settlements in urban areas has been increasing in recent years, which is why it is necessary to analyze surface temperature in addition to its relationship with other factors such as vegetation, water and buildings to determine if these are incidents in the variation thereof. To do this, two Landsat 7 ETM + images were used, the first corresponding to 2001 and the second to 2016, from which surface temperature was determined and indexes such as NDVI (Normalized Differential Vegetation Index), NDWI (Normalized Differential Water Index), NDBI (Normalized Differential Building Index) to establish if there is a relationship between them by means of a correlation analysis of variables, obtaining that these factors present a strong correlation with values that vary between 0.6 to 0.9. Finally, it was determined that the zones with the highest temperature are in the center of the city of Sangolquí and San Rafael.
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