OML1BRUG: Global UV Spectral Radiance from Aura OMI Satellite

Global ultraviolet spectral radiance data from the Ozone Monitoring Instrument aboard NASA's Aura satellite. The dataset contains geolocated Earthshine radiances in the 264-383 nm wavelength range, collected in a global measurement mode with a swath width of approximately 2600 km. Each orbital data file is roughly 210 MB in size and stored in netCDF format, with about 14 files generated per day from the daylit portion of orbits.

Use Cases

• Calibrating atmospheric models based on geolocated Earth view spectral radiances in the UV range.
• Analyzing spatial patterns of UV radiation using the 60 ground pixels across the ~2600 km swath.
• Studying spectral signatures across 716 channels (Bands 1 and 2) for atmospheric constituent retrieval.
• Assessing instrument performance and data gaps when the instrument switches to zoom-mode or calibration.

Strengths

• Provides high spectral resolution with 716 channels across two UV bands (264 311 nm and 307 383 nm).
• Offers detailed spatial information with ground pixel sizes of 13 km x 24 km (nadir, Band 2) and 13 km x 48 km (nadir, Band 1).
• Data is produced with a consistent daily volume of approximately 14 orbital files.

Limitations

• Dataset is occasionally unavailable when the instrument operates in zoom-mode or during special calibration.
• Key metadata such as row count, column names, and exact license terms are unspecified across all platforms.
• The 'last updated' dates on datagov (2026) are in the future, indicating potential metadata errors.

Provenance

Source

National Aeronautics and Space Administration (NASA), with lead algorithm science from the Royal Netherlands Meteorological Institute (KNMI).

Collection Method

Collected by the Ozone Monitoring Instrument (OMI) aboard the Aura satellite in global measurement mode.

Time Range

null

Freshness

2026-04 09 23:29:09.803303 (datagov), but this date is in the future.

Geography

Global coverage from satellite orbits.