Articles | Volume 22, issue 5
Atmos. Chem. Phys., 22, 3675–3691, 2022
https://doi.org/10.5194/acp-22-3675-2022
Atmos. Chem. Phys., 22, 3675–3691, 2022
https://doi.org/10.5194/acp-22-3675-2022

Research article 17 Mar 2022

Research article | 17 Mar 2022

Biomass burning pollution in the South Atlantic upper troposphere: GLORIA trace gas observations and evaluation of the CAMS model

Sören Johansson et al.

Data sets

CAMS global reanalysis (EAC4) Copernicus Atmosphere Data Storage https://ads.atmosphere.copernicus.eu/

GLORIA data for: Biomass burning pollution in the South Atlantic upper troposphere: GLORIA trace gas observations and evaluation of the CAMS model Sören Johansson, Gerald Wetzel, Felix Friedl-Vallon, Norbert Glatthor, Michael Höpfner, Anne Kleinert, Tom Neubert, Björn-Martin Sinnhuber, and Jörn Ungermann https://doi.org/10.5445/IR/1000142148

HALO database (https://halo-db.pa.op.dlr.de/mission/116) HALO consortium https://doi.org/10.17616/R39Q0T

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Short summary
We present GLORIA airborne cross sections of PAN, C2H6, HCOOH, CH3OH, and C2H4 in the South Atlantic UTLS in September/October 2019. Filamentary structures and a large plume were observed. Backward trajectories indicate that measured pollutants come from South America and central Africa. Comparisons to CAMS show structural agreement of the measured distributions. PAN absolute VMRs agree with the GLORIA measurements, C2H6 and HCOOH are simulated too low, and CH3OH and C2H4 are too high.
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