Quantifying the cooling effect of urban heat stress interventions
by Aiman Mazhar Qureshi; Ahmed Rachid; Debbie Bartlett
International Journal of Global Warming (IJGW), Vol. 30, No. 1, 2023

Abstract: This review evaluates the existing studies of blue, green, and grey interventions based on field measurements and modelling aiming to quantify the cooling impact that reduces outdoor heat stress. Based on findings from literature, it is concluded that water bodies can reduce the mean air temperature (T_a) by 3.4°C and universal thermal climate index (UTCI) by 10.7°C, while natural vegetation can improve T_a by 2.3°C and physiological equivalent temperature (PET) by 10.3°C during summer. Vertical greenery systems (VGS) provide cooling effect of T_a up to 4°C, whereas architectural shades reduce it by approximately 3.8°C and PET up to 6.9°C under shade structure.

Online publication date: Mon, 24-Apr-2023

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