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Progress in Earth and Planetary Science
Fig. 6 | Progress in Earth and Planetary Science

Fig. 6

From: Role Of the Sun and the Middle atmosphere/thermosphere/ionosphere In Climate (ROSMIC): a retrospective and prospective view

Fig. 6

Solar variability over solar cycles 23 and 24. Examples of solar variability over solar cycles (SC) 23 and 24 for a the total solar irradiance (TSI) and b the bright ultraviolet H I 121.6 nm Lyman- α emission. The SORCE TSI observations shown here are being extended with TSIS-1 observations. Important solar UV irradiance records over solar cycle (SC) 23 and 24 have been established with TIMED SEE observations, and the TIMED SEE and SDO EVE observations will be extended into the next solar minimum and cycle 25. These extensions are particularly important for overlapping with the new GOLD and ICON missions to observe the ionosphere-thermosphere during cycle 25

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