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Simulated diurnal shadow pattern shown hourly, from 7:00 a.m. to 8:00 p.m., using the physical-based model and shown on the background image captured by the UAV on July 2015 around 11:45 am PST. shadow layer for 7:00 a.m. (a), 8:00 a.m. (b), 9:00 a.m. (c), 10:00 a.m. (d), 11:00 a.m. (e), 12:00 a.m. (f), 1:00 p.m. (g), 2:00 p.m. (h), 3:00 p.m. (i), 4:00 p.m. (j), 5:00 p.m. (k), and 6:00 p.m. (l). Dark areas indicate shadow locations
