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Earth, Planets and Space
Fig. 1 | Earth, Planets and Space

Fig. 1

From: Analysis of close conjunctions between dayside polar cap airglow patches and flow channels by all-sky imager and DMSP

Fig. 1

Snapshots of ASI data at AP1 on (Aa–Aj) June 10, 2008, (Ba–Bj) April 15, 2008, and (Ca–Cj) June 29, 2008. Snapshots in red and blue are in 630.0 and 427.8 nm, respectively. Magenta curves indicate the poleward auroral oval boundary. The dashed circles highlight the PMAFs and airglow patches that we focus on and the black squares show the footprints of DMSP satellites, of which trajectories are indicated by blue arrows. The red line marks the magnetic noon meridian

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