“…In summer, the opposite occurs, when the soil temperature is lower than that of atmospheric air. Among some references on SAT, we can mention (DOMINGUES et al, 2021;RAMALHO et al, 2022;VAZ et al, 2011) To simulate TCSA, it is common to use models for the air and soil temperatures of a given region. This work evaluates the adjustment by trigonometric functions of the temperature simulation data in a city in the state of Rio Grande do Sul, Brazil, where the climate is subtropical and the annual variation of temperatures follows a periodic pattern.…”