Fig. 2 Geometrically and color-normalized images of the packed sand profiles at 5, 7.5, and 10 cm from the wall: dry sand (DS, top), and wet sand (WS, bottom). Small samples were taken from the locations indicated by squares
Fig. 2 Geometrically and color-normalized images of the packed sand profiles at 5, 7.5, and 10 cm from the wall: dry sand (DS, top), and wet sand (WS, bottom). Small samples were taken from the locations indicated by squares