Would a ribbon, say 100 feet long float to the surface to help ID were an avi victim is?
I bought some powder cords/ribbons and it did help me locate a lost ski. Quit using them and turn up my din...
Is there time for a person to pull a cord and have a ribbon released from their body. Perhaps even blow out the ribbon with a very mild charge, think micro air bag charge. And, would one end of the ribbon float in the snow so it would help locate the victim.
The churning motion of the slide might just wrap the victim in ribbon, ready to be mumified. :D
But, the ribbon's end may rise and provide a marker to start the search. Anyone tested this? LITT