GOLD QEUV: Solar EUV Irradiance Proxy Derived from Satellite FUV Measurements

The GOLD Level 2 QEUV data product is a proxy for integrated solar extreme ultraviolet (EUV) irradiance below 45 nm. It is derived directly from far ultraviolet (FUV) radiance measurements taken by the GOLD instrument in its DAY measurement mode. The algorithm heritage originates from work by Strickland et al. (1995) and Evans et al. (1995), and the dataset is provided by the National Aeronautics and Space Administration.

Use Cases

• Modeling thermospheric O/N2 ratios based on the derived solar EUV proxy.
• Analyzing solar EUV irradiance variability based on terrestrial far ultraviolet dayglow observations.
• Validating solar irradiance models using satellite-derived proxy data.
• Studying signal-to-noise optimization in spectral measurements based on GOLD's full spectrum transmission capability.

Strengths

• Algorithm is documented in peer-reviewed publications (e.g., Strickland et al., 2004; Evans et al., 1995).
• Derived from GOLD's DAY measurement mode, which transmits the full spectrum to maximize signal-to-noise ratio.
• The proxy specifically targets integrated solar EUV irradiance below 45 nm.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data format includes BIN files, which may require specialized tools for processing.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Derived from far ultraviolet (FUV) radiance measurements by the GOLD satellite instrument.

Freshness

Last updated 2026-03-13 07:33:25.360956; freshness should be verified.

Geography

Dayside disk data product, likely covering Earth's sunlit hemisphere.