Articles | Volume 16, issue 21
https://doi.org/10.5194/amt-16-5125-2023
https://doi.org/10.5194/amt-16-5125-2023
Research article
 | 
03 Nov 2023
Research article |  | 03 Nov 2023

A portable reflected-sunlight spectrometer for CO2 and CH4

Benedikt A. Löw, Ralph Kleinschek, Vincent Enders, Stanley P. Sander, Thomas J. Pongetti, Tobias D. Schmitt, Frank Hase, Julian Kostinek, and André Butz

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Short summary
We developed a portable spectrometer (EM27/SCA) that remotely measures greenhouse gases in the lower atmosphere above a target region. The measurements can deliver insights into local emission patterns. To evaluate its performance, we set up the EM27/SCA above the Los Angeles Basin side by side with a similar non-portable instrument (CLARS-FTS). The precision is promising and the measurements are consistent with CLARS-FTS. In the future, we need to account for light scattering.