standard climate models radiation codes underestimate black carbon radiative forcing

Clicks: 134
ID: 227957
2015
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Abstract
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 too strong forward scattering, leading to enhanced absorption at the surface and too weak absorption by BC in the atmosphere. Such calculations are found to underestimate the positive RF of BC by 10% for global mean, all sky conditions, relative to the more sophisticated multi-stream models. The underestimation occurs primarily for low surface albedo, even though BC is more efficient for absorption of solar radiation over high surface albedo.
Reference Key
myhre2015atmosphericstandard Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;G. Myhre;B. H. Samset
Journal Journal of agricultural and food chemistry
Year 2015
DOI
10.5194/acp-15-2883-2015
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