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.

Data sets

REanalysis of the TROpospheric Chemical Composition Over the Past 40 years Van het Bolscher, M., Pereira, J., Spessa, A., Dalsoren, S., van Nojie, T., and Szopa, S. http://gcmd.gsfc.nasa.gov/records/GCMD_GEIA_RETRO.html

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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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