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The Mg II index for upper atmosphere modelling

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Figure

Fig. 1. The Mg II index (bottom curve), the 30.4 nm (He II) and 28.4 nm (Fe XV) from AE-E, and the 10.7 cm solar emissions from May to September 1980 (top plot extracted from Avrett, 1992).
Fig. 2. The corrected for instrumental drift original Nimbus-7, NOAA-9 and NOAA-11 Mg II indices datasets.
Fig. 3. The composite Mg II index scaled to the NOAA-9 observa- observa-tions. Data gaps of less than three days have been filled by  interpo-lation.
Fig. 5. The mean and scatter of the DE-2 temperature residuals presented in local time bins.
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