SOR3SOLD_HIGH: Daily Solar Irradiance Spectra at 0.1nm Resolution

115 to 310 nm wavelength spectra are provided at a high spectral resolution of 0.1 nm. The dataset contains merged daily solar spectra constructed from the SORCE SOLSTICE FUV and MUV instrument, with irradiances reported at a mean solar distance of 1 AU. Each netCDF file contains variables for date, Julian day, wavelength, irradiance value, uncertainty, and repeatability.

Use Cases

• Modeling atmospheric photochemistry based on daily far-ultraviolet (FUV) and mid-ultraviolet (MUV) irradiance values.
• Analyzing solar activity trends based on time-series spectral data spanning multiple years.
• Calibrating satellite instruments based on high-resolution (0.1 nm) reference spectra.
• Studying Sun-Earth interactions based on irradiance data normalized to 1 AU solar distance.

Strengths

• Spectral resolution is explicitly stated as 0.1 nm.
• SOLSTICE instrument absolute uncertainty is better than 5%.
• Data is structured in netCDF files containing a full year of data per file.
• Dataset is hosted on multiple authoritative platforms (NASA EarthData, Data.gov), indicating importance and curation.

Limitations

• Column names are listed as 'unknown' on all platforms, limiting precise understanding of data structure.
• Row count and dataset size are not provided.
• Last updated dates conflict between sources (2026-04-09 and 2020-02-25).

Provenance

Source

GES_DISC (NASA Goddard Earth Sciences Data and Information Services Center)

Collection Method

Constructed using measurements from the SORCE SOLSTICE FUV and MUV instrument.

Freshness

2026-04-09 20:32:24.187143