AVIRIS-Classic Hyperspectral Surface Reflectance for Western U.S. Diversity Time Series

2013-2018 Level-2 surface reflectance imagery from NASA's AVIRIS-Classic instrument, collected for the Western Diversity Time Series Project over California and Nevada. The dataset contains 224-channel hyperspectral data with a spectral range from 400-2500 nm, processed to 15-meter spatial resolution with topographic, BRDF, and glint corrections. It is provided by the National Aeronautics and Space Administration in ENVI format, accompanied by JSON files containing ground control points and correction coefficients.

Use Cases

• Training models for land cover classification using 224 spectral bands.
• Analyzing temporal changes in surface reflectance for ecological monitoring.
• Developing spectral unmixing algorithms for mineral or vegetation mapping.
• Validating satellite-derived reflectance products with high-fidelity airborne data.
• Studying BRDF effects and performing topographic correction on imagery.

Strengths

• High spectral fidelity with 224 channels covering 400-2500 nm at 10 nm sampling.
• Precise radiometric calibration with accuracy within 1 nm and signal-to-noise ratio >100:1.
• Extensive temporal coverage across a six-year period from 2013 to 2018.
• Advanced processing includes co-registration with Landsat, and FlexBRDF, topographic, and glint corrections.

Limitations

• Conflicting last update dates: datagov lists 2026-03 12, while nasa_earthdata lists 2018-08-16.
• Specific file size, row count, and exact column structure are not provided by any source.
• License is ambiguously listed as 'other-license-specified' without explicit terms.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Imagery collected from the NASA ER-2 aircraft at 19,800 m altitude using the AVIRIS-Classic whisk-broom instrument, then reprocessed and georectified.

Time Range

2013-2018

Freshness

2026-03-12 19:50:52.627636

Geography

California and Nevada, United States