English: 1 = Currently diving team (1A = diver an line end; 1B = diver and line handler; 1C = tender; 1D = first leading rope for communication, orientating and rescue, ~50-100m)
2 = Rescue team (2A = fully equipped standby-diver; 2B = fully equipped line handler of the standby-diver; 2C = standby-tender; 2D = second leading rope)
3 = Ice cover
4 = Ice screws to secure the line ends.
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