Abstract

Basal temperatures of skis were measured to assess the impact of color on basal energy balance. The skis were identical except one had a black base and the other had a white base. The black-based ski ran at higher temperatures than the white-based ski, even when only diffuse sunlight was reaching the snow surface. Heat production calculations suggest that solar radiation absorption at a ski base can contribute significantly to the production of the meltwater film on which skis glide. Since ski-base color affects the energy balance of the base, color should affect ski friction.

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