As the snow disappears on land, the underlying surfaces absorb even more energy, and begin to warm rapidly.
Darker surfaces absorb heat, which is then radiated as the temperature falls towards the end of the day.
The black surfaces absorbed much of his helmet light.
The darker the surface, the more melting as dark surfaces absorb more energy.
If the surface can absorb the light but cannot keep it, the light will be reflected.
A red surface reflects red light but absorbs blue light.
Wooden boards are still popular, but the surface of cheap ones can crack and absorb bacteria.
However, a dull metallic surface can absorb a sizeable amount of energy that strikes it.
This darker surface now absorbs more sunlight, which accelerates melting.
If a surface absorbs most of the light hitting it, the surface heats up quickly.