Table 1
Historical training datasets used to determine the EUVS Model coefficients. The Purpose column indicates if the data are used to compute the long-term and/or short-term model coefficients, or to cross-calibrate the historical data with the GOES-16 EUVS Measurements.
| Data source | Purpose | Data level | Version | Wavelength (nm) | Sampling (nm) | Accuracy (%) |
|---|---|---|---|---|---|---|
| SORCE/SOLSTICEa | Long-term, Cross-calibrate | 3 | 15 | 117–141 | 0.1 | 5–8 |
| TIMED/EGSb | Long and Short-term | 3 | 12 | 26–117 | 1 | 5–20 |
| TIMED/XPSc | Long-term | 3 | 12 | 5–26 | 1 | 20 |
| SDO/MEGSd | Long and Short-term | 3 | 6 | 6–106 | 0.1 | 1–7 |
| Bremen composite Mg II Indexe | Long-term, Cross-calibrate | Composite | 5 | 275–285 | N/A | 0.3i |
| FISM-EVEf | Cross-calibrate | Daily average | 1 | 28–31 | 0.1 | 5–10 |
| GOES-15/EUVS Eg | Short-term | Minute average | 4 | 121.6 | Lyman-α | 2h |
Solar Radiation and Climate Experiment/SOLar-STellar Irradiance Comparison Experiment (McClintock et al., 2005).
Thermosphere Ionosphere Mesosphere Energetics and Dynamics/EUV Grating Spectrograph (Woods et al., 2005).
TIMED/XUV Photometer System (Woods et al., 2005).
Solar Dynamics Observatory/Multiple EUV Grating Spectrographs (Woods et al., 2010).
FISM-EUV Variability Experiment (Thiemann et al., 2017a; Chamberlin et al., 2018).
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