Figure 15
The horizontal axis, Time in hours, ranges from 0 to 30 in increments of 5. The vertical axis, Power per unit length, P of t, in watts per metre, ranges from 0 to 300 in increments of 50. The You et al, 2021 T P T data begin near 270 watts per metre, fall steeply below 200 within the first hour, and then decline gradually to about 70 watts per metre by 27 hours. The Power Output Surrogate begins near 190 watts per metre, drops to about 130 by 1 hour and about 115 by 2 hours, then decreases steadily to about 74 watts per metre at 30 hours. The surrogate follows the measured trend closely after the first few hours.Comparison of power output results from a field TPT and the surrogate output