Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 16, issue 6
Articles | Volume 16, issue 6
https://doi.org/10.5194/acp-16-4171-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/acp-16-4171-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 16, issue 6
Research article
 | 
31 Mar 2016
Research article |  | 31 Mar 2016

Diurnal cycle and multi-decadal trend of formaldehyde in the remote atmosphere near 46° N

Bruno Franco, Eloise A. Marais, Benoît Bovy, Whitney Bader, Bernard Lejeune, Ginette Roland, Christian Servais, and Emmanuel Mahieu

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Short summary
The long-term evolution of HCHO in the remote troposphere is characterized using a 27-year time series of total columns from high-resolution FTIR solar spectra recorded at Jungfraujoch. A parametric model is used to remove the effect of the HCHO diurnal variations for improving the trend determination and the comparison with columns simulated by GEOS-Chem. Sensitivity tests are performed to identify the main drivers of the HCHO seasonal and inter-annual variations, as well as their contribution.
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