This record contains supporting research materials derived from an undergraduate Environmental Engineering study on thermal regulation, land surface temperature, wetlands, green spaces and environmental justice in Santiago de Chile. The package includes processed data files, selected geospatial inputs, figures, model outputs, an R script, metadata, a data dictionary and documentation files associated with the spatial analysis of thermal regulation using Landsat 8, multiscale fishnet grids and spatial regression approaches. The materials are intended to support transparency, citation and reuse of derived outputs from the study. They do not constitute a full computational reproduction package, since raw satellite imagery, complete ArcGIS project environments and all intermediate raster-processing files are not included. The complete undergraduate thesis associated with these materials is available in Thesis Commons.