AVIRIS-NG Methane and Carbon Dioxide Plume Maps from 2023 STAQS Campaign

NASA's AVIRIS-NG instrument captured 211 flight lines across North America during the 2023 STAQS campaign, from June 26 to August 15. A cluster matched filter algorithm processed radiance spectra to identify and delineate 177 distinct greenhouse gas plumes, comprising 74 methane and 103 carbon dioxide emissions. The data are provided as geospatial imagery in GeoTIFF and JSON formats.

Use Cases

• Mapping industrial methane emission sources using the delineated plume polygons.
• Analyzing spatial patterns of carbon dioxide concentrations from the GeoTIFF raster data.
• Validating satellite-based air quality models with airborne, column-integrated concentration data.
• Studying the correlation between plume characteristics and potential ground source locations.

Strengths

• Dataset contains 177 specifically identified and delineated greenhouse gas plumes.
• Covers 211 distinct flight lines, providing wide spatial sampling across North America.
• Data derived from the AVIRIS-NG spectrometer using a defined cluster matched filter algorithm.
• Provides separate counts for 74 methane (CH4) and 103 carbon dioxide (CO2) plumes.

Limitations

• Specific column names and row counts are not provided by any source.
• Sources conflict on the last updated date: data.gov lists 2026-03-12, while NASA Earthdata lists 2023-08 15.

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Enhanced column-integrated concentrations estimated from AVIRIS-NG L1B radiance measurements using a cluster matched filter approach.

Time Range

2023-06-26 to 2023-08-15

Freshness

2026-03 12 22:16:52.434712

Geography

North America