Snow surface hardness measuring device and snow surface hardness measuring method

摘要

PROBLEM TO BE SOLVED: To accurately measure the hardness of a snow surface.SOLUTION: A pressing member 102 moves on a snow surface G while applying a fixed ground contact pressure on the snow surface. Snow surface shape measurement means 104 continuously measures a cross-sectional shape of the snow surface G around a passage position of the pressing member 102 before and after the passage of the pressing member 102. On the basis of the change of the cross-sectional shape before and after the passage of the pressing member 102, a processing unit 106 estimates a displacement in a vertical direction of the snow surface G at each point of the passage position of the pressing member 102 and calculates the hardness of the snow surface at each point of the passage position on the basis of the displacement. The snow surface G may be pre-compressed by applying the ground contact pressure to the snow surface G before the passage of the pressing member 102 with pre-compression means 110.