Articles | Volume 16, issue 21
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


Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on amt-2023-101', Anonymous Referee #1, 04 Jul 2023
  • RC2: 'Comment on amt-2023-101', David Griffith, 17 Jul 2023

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision | EF: Editorial file upload
AR by Benedikt Löw on behalf of the Authors (08 Sep 2023)  Author's response   Author's tracked changes   Manuscript 
ED: Publish as is (20 Sep 2023) by Alexander Kokhanovsky
AR by Benedikt Löw on behalf of the Authors (25 Sep 2023)
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.