In reply to Robbo1:
I can't comment on the specifics of Rjukan compared to Cogne, but I did go to Opdal, Norway last February for a weeks ice climbing.
I used a mix of a heavier lined softshell and a hardshell depending on the weather. Cold dry windy = softshell, warmer snowy windy = hardshell. Not much help in terms of choosing for you but I think both have their place depending on the conditions on the day. I run hot and found the softshell more breathable but was glad of the hardshell when the conditions were a bit more blizzard like. It may just be that UK winter has drummed into me you don't go anywhere without a hardshell though....