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

Related authors

Towards routine shipborne measurements of columnar CO2, CH4, CO, and NO2: a case study for tracking regional-scale emission patterns
Vincent Enders, Astrid Müller, Matthias Max Frey, Frank Hase, Ralph Kleinschek, Marvin Knapp, Benedikt Löw, Isamu Morino, Shin-Ichiro Nakaoka, Hideki Nara, Hiroshi Tanimoto, Sanam N. Vardag, Karolin Voss, and André Butz
EGUsphere, https://doi.org/10.5194/egusphere-2025-4552,https://doi.org/10.5194/egusphere-2025-4552, 2025
This preprint is open for discussion and under review for Atmospheric Measurement Techniques (AMT).
Short summary
An open-path observatory for greenhouse gases based on near-infrared Fourier transform spectroscopy
Tobias D. Schmitt, Jonas Kuhn, Ralph Kleinschek, Benedikt A. Löw, Stefan Schmitt, William Cranton, Martina Schmidt, Sanam N. Vardag, Frank Hase, David W. T. Griffith, and André Butz
Atmos. Meas. Tech., 16, 6097–6110, https://doi.org/10.5194/amt-16-6097-2023,https://doi.org/10.5194/amt-16-6097-2023, 2023
Short summary

Cited articles

Addington, O., Zeng, Z.-C., Pongetti, T., Shia, R.-L., Gurney, K. R., Liang, J., Roest, G., He, L., Yung, Y. L., and Sander, S. P.: Estimating Nitrous Oxide (N2O) Emissions for the Los Angeles Megacity Using Mountaintop Remote Sensing Observations, Remote Sens. Environ., 259, 112351, https://doi.org/10.1016/j.rse.2021.112351, 2021. a
CARB (California Air Resources Board): CARB Pollution Mapping Tool v2.6 [data set], https://www.arb.ca.gov/carbapps/pollution-map (last access: 27 July 2023), 2023. a
Butz, A., Guerlet, S., Hasekamp, O., Schepers, D., Galli, A., Aben, I., Frankenberg, C., Hartmann, J.-M., Tran, H., Kuze, A., Keppel-Aleks, G., Toon, G., Wunch, D., Wennberg, P., Deutscher, N., Griffith, D., Macatangay, R., Messerschmidt, J., Notholt, J., and Warneke, T.: Toward Accurate CO2 and CH4 Observations from GOSAT, Geophys. Res. Lett., 38, L14812, https://doi.org/10.1029/2011GL047888, 2011. a
Butz, A., Dinger, A. S., Bobrowski, N., Kostinek, J., Fieber, L., Fischerkeller, C., Giuffrida, G. B., Hase, F., Klappenbach, F., Kuhn, J., Lübcke, P., Tirpitz, L., and Tu, Q.: Remote sensing of volcanic CO2, HF, HCl, SO2, and BrO in the downwind plume of Mt. Etna, Atmos. Meas. Tech., 10, 1–14, https://doi.org/10.5194/amt-10-1-2017, 2017. a
Christen, A.: Atmospheric Measurement Techniques to Quantify Greenhouse Gas Emissions from Cities, Urban Clim., 10, 241–260, https://doi.org/10.1016/j.uclim.2014.04.006, 2014. a
Download
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.
Share