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Phil Ewing on Twitter: "This per NBC -- no, the balloon drifted into the US ADIZ from outside and then floated over Canada into CONUS!?! That ... is ... worrisome https://t.co/t5LBi9hU0H https://t.co/5pQclOc8oF" /
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AMT - Understanding balloon-borne frost point hygrometer measurements after contamination by mixed-phase clouds
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