Articles | Volume 15, issue 5
Atmos. Chem. Phys., 15, 2883–2888, 2015
https://doi.org/10.5194/acp-15-2883-2015
Atmos. Chem. Phys., 15, 2883–2888, 2015
https://doi.org/10.5194/acp-15-2883-2015

Research article 13 Mar 2015

Research article | 13 Mar 2015

Standard climate models radiation codes underestimate black carbon radiative forcing

G. Myhre and B. H. Samset

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Short summary
Radiative forcing (RF) of black carbon (BC) in the atmosphere is estimated using radiative transfer codes of various complexities. Here we show that the two-stream radiative transfer codes used most in climate models give overly strong forward scattering, leading to enhanced absorption at the surface and overly weak absorption by BC. Such calculations are found to underestimate RF in all sky conditions by 10% for global mean, relative to the more sophisticated multi-stream model.
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