The project retrieves land surface temperature (LST) using a single-window algorithm on Landsat 8 data between 2014 and 2018 and investigated the land surface temperature (LST) pattern in Colorado between 2000 and 2018 using USGS Analysis Ready Data product. All data were processed on Google Earth Engine. The retrieved LST maps were validated against the ARD LST product. The difference of ARD LST distributions between the three Landsat platforms were analyzed. The long-term LST pattern by land use types (i.e., six dominant ones in Colorado, developed, barren, forest, shrubland, grassland and pasture, and crops) were also analyzed.Interns: Eric Jensen, Mariah Wang, Nicolas VogelReports: Long Term PatternDenverElbert CountyGilpin CountyMoffat CountyPhillips CountySan Jaun County