Impactos no microclima associados à substituição da vegetação natural por placas fotovoltaicas.

Abstract

The objective of this work was to determine the occurrence of microclimate change in the area of a solar plant associated with the replacement of natural vegetation by photovoltaic plates. The surface albedo, the Normalized Difference Vegetation Index, the Earth Surface Temperature and the Radiation Balance at the site of a photovoltaic plant, before and after its construction, were analyzed. To obtain these variables, images from the Landsat 8 satellite were used, more specifically the OLI (Operational Land Imager) and TIRS (Thermal Infrared Sensor) sensors from the months of February and October in the years 2015 and 2021, referring to the year prior to the construction of the enterprise. and later, respectively. Images in the format, GEOTIFF (TIFF), vectors in the Shapefile format (SHP), Digital Elevation Model (DEM) captured through the TOPODATA system and the SEBAL algorithm applied to the GRASS 7.2.2 and QGIS 2.14 software were used. 22. The results demonstrate the efficiency of the applied procedure showing a decrease in albedo and surface temperature. It was also pointed out that the plates had the same exposed soil temperature and the change in land use resulted in a drop in the radiation balance, compared to the external points, thus corroborating the microclimatic change caused by the plant.