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Pathfinder launch / Penguin at Ice Runway
This morning,
NSBF announced that they were progressing with the next phase of this
year's balloon campaign by launching a pathfinder balloon (pictures here).
A pathfinder is much smaller than the long-duration balloons and is
solely used to probe the wind speed and direction near 125,000 -
130,000 feet, so that NSBF can get an idea of whether or not the
seasonal circumpolar winds are setting up correctly. In the
beginning of December, an extremely high-altitude wind vortex sets up
over the continent with its center
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