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Earth, Planets and Space
Fig. 3 | Earth, Planets and Space

Fig. 3

From: The first simultaneous spectroscopic and monochromatic imaging observations of short-wavelength infrared aurora of \(\mathrm {N_{2}^{+}}\) Meinel (0,0) band at 1.1 \(\mathrm {\mu }\)m with incoherent scatter radar

Fig. 3

Summary plots for temporal evolution of the observed \(\mathrm {N_{2}^{+}}\) (M) with ionospheric variations. a H-component of geomagnetic fields, b \(\mathrm {N_{2}^{+}}\) (M) intensity observed by the NIRAS-2 and the NIRAC, c dynamic spectrum from 1065 to 1135 nm obtained by the NIRAS-2, d electron density along the filed line as functions of altitude and time, and e electron density variations for the four different altitudes along the filed line observed by the ESR

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