Earth's curvature + altitude
At 4,000 feet, you see sunrise earlier than ground observers. You catch the first light about 20 minutes before someone on the dune floor would.
Light quality at altitude
Pre-dawn sky from altitude has fewer particulates. Colors appear more saturated. Reds and oranges hold longer before merging to yellow.
Why photography works better aloft
No power lines, no buildings, no ground haze. ISO can stay low. Golden hour lasts ~45 minutes in the basket vs ~20 minutes on the ground.
Writing from the desert desk at Margham launch site. Fact-checked against GCAA operational bulletins and 11 years of active flight logs.