I romanticized that kind of work, but I think my limit is roughly what you said at around 2 weeks. The novelty wears off. Especially because I miss my kids a lot after a few days.

Actually, another big one: I love cooking. When you eat what you're given and don't have a choice, even if the food is pretty good it's kind of... I don't know... I really just want to go home and make something that is distinctly 'my food', something I would only have at home.

Even so, I absolutely love field work. The stuff I do is nowhere near as crazy as the Antarctic. I'm typically on the semi-remote islands of the British Columbia coast. My wife goes to the Arctic; her experience is probably more like yours. Lots of time isolated on icebreakers. Occasionally visiting remote navy or military bases, though. Some indigenous communities. Not as middle-of-nowhere as the Antarctic! The longest she has done is 7 weeks, with ~4 days off of the ship.