Do people at Antarctic research stations ever hear this sound?
Probably not as it requires a gradient, which that deserted and static landscape wouldn't provide.
But what if the discharge requires some specific environmental factor, say, something the height of a tree?
Maybe tree covered ground makes a more effective source of the rising-up component of this process. That relatively warm, negatively ionized rising air might be much diminished over a frozen lake or open plain. Otoh, it'd probably be greater over the ocean, I would think.