Greenfields amphibious ops: Crossing ice crack

Here, the Sherp easily cross a crack in the frozen fjord. It may not look like much, but the fjords are very deep and obstacles like this can cut across most of a fjord's width. One of the skills developed by Greenfields is to detect such cracks using multispectral satellite imagery. In some instances, we could even see the Sherp tracks in the snow from the prior week which is impressive, as white on white is impossible using the visible spectrum. Prediction prevents problems.