ABSTRACT
The seasonal component TD1(t) is modelled with a sine function:
TD1(t) = Tref + MT.sin [ 2π(t – to)/8760]
The daily variation TD2(t) is identified by studying the deterministic part of the residual Tres1(t) = Tm(t) − TD1(t). It is a zero-mean signal which is governed by the solar radiations intensity and by the air cooling during the night. This variation is modeled considering that there is a linear decrease of the temperature between sunset (tss) and next sunrise (tsr) and that a [linear + half-sine] function describes the temperature variation during the day time.
