Syowa Syowa Station, (Japan)

[ permanent base ]

Still active for stratospheric balloon launches from the 90's decade. A single annual campaign (sporadic). Estimated number of launches performed there: 30

McMurdo Williams Field, McMurdo Base (USA)

[ permanent base ]

Still active for stratospheric balloon launches since 1988. A single annual campaign in summer performed from the local airport as well of small balloon launches from the base's neighborhood. Estimated number of launches performed there: 150