TIMED GUVI: Ultraviolet Airglow Flux Movies in South Polar Projection

Global coverage from NASA's TIMED satellite GUVI instrument measures far ultraviolet airglow at the 121.6 nm wavelength. The dataset provides calibrated, geolocated, and rectified intensity images mapped using a south polar projection. The Level 1C Disk Version 3 files are movies of log intensities by orbit.

Use Cases

• Analyzing atmospheric composition dynamics based on hydrogen Lyman-alpha emissions
• Mapping global airglow intensity patterns based on calibrated ultraviolet imagery
• Studying space weather phenomena based on cross-track scanning spectrograph data
• Visualizing polar region atmospheric processes based on south polar projection maps

Strengths

• Provides calibrated, geolocated, and rectified intensities
• Cross-track scanning spectrograph images a ground swath of 3000 km width
• Offers nearly contiguous global coverage with 15 orbits per day

Limitations

• Column-level documentation is absent; field semantics must be inferred after download
• Row count is unknown, which may limit suitability assessment

Provenance

Source

National Aeronautics and Space Administration

Collection Method

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

Freshness

Last updated 2026-03-13 09:41:59.755800; freshness should be verified

Geography

Global coverage with a south polar projection focus.