AVIRIS-NG SHIFT Campaign L1A Unrectified Radiance Imagery

NASA's AVIRIS-NG instrument collected this Level 1A dataset of unrectified surface radiance as part of the Surface Biology and Geology High-Frequency Time Series (SHIFT) campaign. The data covers nearly 1,656 square kilometers in Santa Barbara County, California, and nearby coastal waters, captured at approximately weekly intervals. It includes radiance images, geometric lookup tables, and observation parameters across the 380-2510 nm spectral range at 5-nm intervals.

Use Cases

• Analyzing spectral radiance (rdn files) for vegetation health and species composition across weekly time steps.
• Using geometric lookup tables (glt) and observation parameters (obs) to correct for sensor viewing and illumination angles.
• Studying temporal traceability of surface biology and geology features using the high-frequency, multi-temporal image collection.
• Applying input geometry files (igm) for spatial analysis and co-registration with other geospatial datasets.

Strengths

• High spectral resolution with measurements at 5-nm intervals across the 380-2510 nm VSWIR range.
• High-frequency temporal coverage with data collected at approximately a weekly cadence over a 1,656 sq km study area.
• Includes multiple calibrated data products per flight line: radiance (rdn), geometry (glt, igm), and observation (obs) files.

Limitations

• Data is provided as unrectified Level 1A radiance, requiring geometric correction for analysis.
• Conflicting last updated dates exist between sources (2026-03 12 and 2022-05-29), creating uncertainty about update cadence.
• Specific row counts, file sizes, and total number of flight lines are not provided across any platform.

Provenance

Source

NASA Airborne Visible / Infrared Imaging Spectrometer-Next Generation (AVIRIS-NG) instrument.

Collection Method

Airborne pushbroom spectral mapping collected as part of the SHIFT campaign.

Time Range

Campaign period with weekly cadence (specific start/end dates not provided).

Freshness

2026-03-12 21:28:42.630533

Geography

Santa Barbara County, California, US, and nearby coastal Pacific waters.