Atmospheric remote sensing of methane with RedEye-1: a low-cost hyperspectral SWIR imager
This paper presents the initial results obtained from airborne data cubes collected by RedEye-1, a cost-effective Short-Wave Infrared (SWIR) imager designed for measuring methane (CH<sub>4</sub>) and carbon dioxide (CO<sub>2</sub>) concentrations in the atmosphere. RedEye-1 operates within the spectral range of 1588-1673 nm with an approximate spectral resolution of 0.35 nm. The imager completed its first airborne mission, capturing data cubes over coal mines in New South Wales, Australia. This paper presents and interprets the data cubes acquired while detailing some challenges encountered during the mission. The inversion model estimated the CH<sub>4</sub> concentration near 1645 nm to be approximately 5229 ppb, compared to the standard atmospheric CH<sub>4</sub> level, implying significant CH<sub>4</sub> emissions from the coal mine flown over.
Authors
- Sergio G. Leon-Saval (ORCID: https://orcid.org/0000-0002-5606-3874)
- Naif Alsalem (ORCID: https://orcid.org/0000-0002-1378-3425)
- Savannah L. McGuirk (ORCID: https://orcid.org/0009-0009-6679-7087)
- Iver H. Cairns (ORCID: https://orcid.org/0000-0001-6978-9765)
- Christopher H. Betters (ORCID: https://orcid.org/0000-0002-3797-2028)
Publication Details
- Published
- 2024-12-21
- DOI
- https://doi.org/10.1117/12.3034690
- Primary Topic
- Atmospheric and Environmental Gas Dynamics
- Type
- article
- Field-Weighted Citation Impact
- 0.00