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

Fig. 1

From: Local time and longitudinal variation of the ionospheric radial current: swarm observations and TIE–GCM simulations

Fig. 1

Local time distributions of the ionospheric radial current (IRC) in the equinox (top), June solstice (JS, middle), and December solstice (DS, bottom). The solid and dashed lines illustrate IRC in the Northern (5°–15° MLat) and Southern Hemispheres (−15° to −5° MLat), respectively. The arrows represent the direction of flow between the northern and southern hemispheres of IRC. The negative and positive values represent the radially inward and outward currents, respectively. The bin width is 1 h in local time. March, April, September, and October were selected for the combined equinox, November to February for DS, and May to August for JS

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