composited imagery derived from ArcticDEM hillshade_HDLine_grid40747.tif: a composited image, with lines of narrow-steep slopes on top and hillshades derived from the most recent ArcticDEM in the background. For the legend of lines in different color, please refer to Fig. 2 at https://yghlc.github.io/validate-thaw-slump hillshade_HDLine_grid40747_count.tif: the number of lines of narrow-steep slopes at each pixel