| Issue |
EPJ Web Conf.
Volume 362, 2026
31st International Laser Radar Conference (ILRC 31) Held Together with the 22nd Coherent Laser Radar Conference (CLRC 22)
|
|
|---|---|---|
| Article Number | 09007 | |
| Number of page(s) | 4 | |
| Section | Lidar Measurements of Trace Gases (including Greenhouse Gases and Water Vapour) | |
| DOI | https://doi.org/10.1051/epjconf/202636209007 | |
| Published online | 09 April 2026 | |
https://doi.org/10.1051/epjconf/202636209007
City-Scale Methane Retrievals from the High-Altitude Lidar Observatory During the 2023 STAQS Campaign
(a) NASA Langley Research Center 21 Langley Blvd., Hampton VA, 23681, USA
(b) RSES: Analytical Mechanics Associates, Inc. 21 Enterprise Pkwy., Ste. 300 Hampton VA, 23666, USA
(c) RSES: Coherent Application, INC. - Psionic LLC. 1100 Exploration Way, Hampton VA, 23666, USA
(d) NASA Goddard Spaceflight Center Mail Code 698, Greenbelt MD, 20771, USA This email address is being protected from spambots. You need JavaScript enabled to view it.
Published online: 9 April 2026
Abstract
The NASA Langley Research Center's High-Altitude Lidar Observatory (HALO) participated in the 2023 STAQS mission to study air quality and greenhouse gas concentrations across major metropolitan regions in the United States, such as Los Angeles, New York City, and Chicago. The spatiotemporal evolution of column and multi-layer methane, aerosol backscatter, extinction, depolarization, and mixed layer heights was observed by HALO during AM/PM single day flights and multi-day sampling of the same regions. Here, we show these measurements and assess HALO's capabilities for combined greenhouse gas and air quality measurements, novel profiling techniques for methane layer attribution, and the capability for a high-altitude lidar to provide emission estimates.
© The Authors, published by EDP Sciences, 2026
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