AVIRIS-3 Airborne Greenhouse Gas Concentration Enhancements

AVIRIS-3 L2B Greenhouse Gas Enhancements provide per-pixel concentration maps for methane and carbon dioxide derived from airborne spectrometer imagery. The data is produced by NASA's AVIRIS-3 instrument, which measures reflected radiance across 390-2500 nm at 7.4-nm intervals. This collection is archived by NASA's Earth Observing System Data and Information System (EOSDIS).

Use Cases

• Quantifying methane and carbon dioxide concentration enhancements at the pixel level.
• Analyzing per-pixel uncertainty and sensitivity metrics for emission source attribution.
• Mapping localized greenhouse gas plumes from industrial or natural sources using spectral absorption features.
• Validating satellite-based greenhouse gas observations with higher-resolution airborne data.

Strengths

• Data provides per-pixel uncertainty and sensitivity estimates for each greenhouse gas enhancement.
• Spectral measurements are made at high resolution (7.4-nm intervals) across a wide range (390-2500 nm).
• Products are derived using a column-wise adaptive matched filter approach for precise spectral detection.
• Dataset is hosted on multiple platforms (Data.gov, NASA Earthdata), indicating its importance and accessibility.

Limitations

• Specific column names, row counts, and dataset size are not provided on any platform.
• Sources conflict on license: Data.gov specifies 'other-license-specified', while NASA Earthdata lists no license.
• The temporal and geographic coverage of the flights is not detailed in the provided metadata.

Provenance

Source

National Aeronautics and Space Administration (NASA), AVIRIS-3 instrument.

Collection Method

Concentration enhancements estimated from radiance measurements using a column-wise adaptive matched filter approach.

Time Range

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Freshness

2026-03-13 11:23:27.616867

Geography

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