AVIRIS-NG: Airborne Hyperspectral Radiance Imagery

AVIRIS-NG L1B data provides orthocorrected radiance images captured from aircraft, measuring reflected light at 5-nm intervals across the 380-2510 nm spectral range. For each flight line, the dataset includes calibrated radiance images, geometric lookup tables, and files detailing observation geometry and illumination parameters. The sensor's 1 milliradian field of view yields ground sampling distances from 20 meters down to sub-meter resolution, depending on flight altitude.

Use Cases

• Mineral and geological mapping based on detailed spectral signatures across 426 bands.
• Vegetation biochemistry and stress assessment using narrow-band reflectance in the VSWIR range.
• Atmospheric correction and radiative transfer modeling leveraging precise observational geometry files.
• High-resolution land cover classification from orthocorrected imagery with sub-meter to 20m ground sampling.
• Coastal and inland water quality monitoring using water-leaving radiance measurements.

Strengths

• Covers a broad temporal range from 2014 to 2022, providing a multi-year archive.
• Delivers high spectral resolution with measurements at 5-nm intervals across 426 bands.
• Includes six core geocorrected file types per flight line (img, glt, obs_ort, igm, obs, loc) for comprehensive analysis.

Limitations

• Dataset size, row count, and specific column details are not provided on any platform.
• License is ambiguously listed as 'other-license-specified' without further details.
• Data freshness is unclear; the last update date (2026-03-13) appears to be a metadata artifact far in the future.

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Collected by the Airborne Visible / Infrared Imaging Spectrometer-Next Generation (AVIRIS-NG) pushbroom sensor flown on aircraft including the Twin Otter, King Air B-200, and ER-2.

Time Range

2014 - 2022

Freshness

2026-03-13 (from datagov, but appears anomalous)

Geography

Global, dependent on specific airborne campaign flight lines.