Articles | Volume 14, issue 21
https://doi.org/10.5194/acp-14-11697-2014
https://doi.org/10.5194/acp-14-11697-2014
Research article
 | 
07 Nov 2014
Research article |  | 07 Nov 2014

Biases in modeled surface snow BC mixing ratios in prescribed-aerosol climate model runs

S. J. Doherty, C. M. Bitz, and M. G. Flanner

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Short summary
Black carbon in snow lowers its albedo, increasing the absorption of sunlight, leading to positive radiative forcing, climate warming and earlier snow-melt. A series of recent studies have used prescribed rates of black carbon deposition to snow to assess the climate effects of black carbon in snow. Here we show that the use of prescribed deposition fluxes in these model studies leads to high biases in snow BC concentrations, caused by the decoupling of BC and snow deposition to the surface.
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