On the correct specification of the analytical CTTC model for predicting the urban canopy layer temperature

The purpose of this paper is to elucidate the correct specification of the analytical CTTC model for predicting the urban canopy layer (UCL) air–temperature. Improvement in the model specification was proposed by Elnahas–Williamson by incorporating in the prediction process diurnal information from a site’s representative meteorological station. The paper demonstrates that the proposed improvement causes a serious error in the diurnal predictions, the effect of which may reflect on the indoor energy savings policy.