Figure S1.

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Occurrence distributions of the MLT/MLAT flow channel location for each radar. The top row presents the distributions for the Northern Hemisphere for the Clyde River (CLY), Rankin Inlet (RKN), Inuvik (INV), and Longyearbyen (LYR) radars. The bottom row presents the distributions for the Southern Hemisphere for the Zhongshan (ZHO), South Pole Station (SPS), Dome C (DCE), and McMurdo (MCM) radars.
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