Figure 4: (a) Composite urban (red), suburban (gold), and rural (blue) values of computed heat index [48, 49] from 30 July 2008 to 8 August 2008. (b) Composite diurnal values of UHI Heat Index with respect to rural composite values for the urban (red) and suburban (gold) locations. The methodology is consistent with the analysis demonstrated in Figure 2(b) and computed values of the heat index [48, 49].