Figure 6.

Case 2 scenarios – Two-dimensional histogram for the rate of required whole-body heat loss, $E_{req}$ (x-axis), and the maximum potential evaporative rate, $E_{max}$ (y-axis), for the middle-aged female profile performing different activities (blue =resting, grey =walking, pink =jogging). The model was run using hourly TMY summertime data for Phoenix, Miami, and New York. Black diagonal lines: ${\omega }_{req}$ = 0.5 (thick) and 1 (thin). Purple lines: values of $E_{max\mathrm{\_}sweat}$ for the young/acclimatized when the liquid sweat loss is non-replenished. Vertical gray line at $E_{req}$ = 0 indicates thermal equilibrium.