Foul weather jackets were issued when we were surveying in the Norwegian Sea. This was appropriate wear when venturing out on the weather decks. It was icy cold and windy. The bosun installed a wire safety line to hang onto for those needing to walk the slippery deck back to the stern.
In the winter of 1962-63 we occasionally found ourselves above the arctic circle, where depending on the latitude, the sun would come up just above the horizon at perhaps ten or eleven, then set a couple of hours later. Further north it didn't come up at all, with perhaps a bit of midday twilight. That was just to remind us it was daytime. Otherwise day and night looked pretty much the same.
