Overview
| DOI | https://doi.org/10.3334/ORNLDAAC/2406 |
|---|---|
| Version | 1 |
| Projects |
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| Published | 2025-06-20 |
| Usage | 3 downloads |
Description
This dataset contains enhanced column-integrated methane (CH4) and carbon dioxide (CO2) (concentration lengths) acquired from 211 flight lines across North America imaged by the Airborne Visible/Infrared Imaging Spectrometer-Next Generation (AVIRIS-NG) between June 26 and August 15, 2023 for NASA's Synergistic TEMPO Air Quality Science (STAQS) campaign. Enhanced CH4 and CO2 concentrations were estimated from the L1B radiance measurements using a cluster matched filter approach. This algorithm searches each pixel's radiance spectrum for deviations that are characteristic of a greenhouses gas's absorption spectrum. A total of 177 greenhouse gas plumes were identified and delineated, of which 74 were CH4 and 103 were CO2. The data are provided in GeoTIFF and JSON formats.
Science Keywords
- ATMOSPHERE
- ATMOSPHERIC CHEMISTRY
- CARBON AND HYDROCARBON COMPOUNDS
- ATMOSPHERIC CARBON DIOXIDE
- ATMOSPHERE
- AIR QUALITY
- EMISSIONS
- HUMAN DIMENSIONS
- ENVIRONMENTAL IMPACTS
- INDUSTRIAL EMISSIONS
- ATMOSPHERE
- ATMOSPHERIC CHEMISTRY
- CARBON AND HYDROCARBON COMPOUNDS
- METHANE
Data Use and Citation
This dataset is openly shared, without restriction, in accordance with the NASA Earthdata Data Use Guidance.
Data Files
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Companion Files
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Dataset Companion Files
Dataset has 1 companion files.
- AVIRIS-NG_CH4_CO2_Plumes.pdf