TIMED GUVI: Global Ultraviolet Airglow Flux Movies at 1216 Å

TIMED Global Ultraviolet Imager (GUVI) measures far ultraviolet airglow in five spectral bands. This Level 1C Disk Version 3 file provides calibrated, geolocated, and rectified intensities for the hydrogen Lyman-alpha wavelength band at 1216 Å. The data is presented as a movie with mapped images of log intensities by orbit using a north polar projection.

Use Cases

• Analyzing atmospheric airglow patterns based on calibrated ultraviolet intensities.
• Studying solar-terrestrial interactions based on hydrogen Lyman-alpha emissions.
• Creating visualizations of global atmospheric phenomena based on north polar projection imagery.
• Monitoring space weather effects based on cross-track scanning spectrograph data.

Strengths

• Data is calibrated, geolocated, and rectified.
• Cross-track scanning spectrograph provides a ground swath width of 3000 km.
• 15 orbits per day provide nearly contiguous global coverage.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic or temporal bias inherent to the satellite's orbit.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Data gathered by the TIMED satellite's Global Ultraviolet Imager (GUVI) instrument.

Freshness

Last updated 2026-03-13 09:43:06.247335; freshness should be verified.

Geography

Global coverage.