Articles | Volume 16, issue 6
Atmos. Chem. Phys., 16, 4171–4189, 2016
https://doi.org/10.5194/acp-16-4171-2016
Atmos. Chem. Phys., 16, 4171–4189, 2016
https://doi.org/10.5194/acp-16-4171-2016
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 et al.

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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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