Articles | Volume 21, issue 9
Atmos. Chem. Phys., 21, 6875–6893, 2021
https://doi.org/10.5194/acp-21-6875-2021
Atmos. Chem. Phys., 21, 6875–6893, 2021
https://doi.org/10.5194/acp-21-6875-2021

Research article 06 May 2021

Research article | 06 May 2021

Present-day radiative effect from radiation-absorbing aerosols in snow

Paolo Tuccella et al.

Data sets

Radiation absorbing aerosol P. Tuccella https://doi.org/10.17605/OSF.IO/XNTR8

Model code and software

Radiative forcing by long-lived greenhouse gases: Calculations with the AER radiative transfer models (http://rtweb.aer.com/rrtm_frame.html) M. J. Iacono, J. S. Delamere, E. J. Mlawer, W. Shephard, S. A. Clough, and W. D. Collins https://doi.org/10.1029/2008JD009944

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Short summary
We calculate the radiation-absorbing aerosol quantity in snow with a global chemical and transport atmospheric model, validated with global observations. The perturbation to snow albedo and related climatic impact are assessed. The resulting average radiative flux change in snow is 0.068 W m−2. Black carbon is a major contributor (+0.033 W m−2), followed by dust (+0.012 W m−2) and brown carbon (+0.0066 W m−2). The impact is also characterized by significant seasonal and geographical variability.
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