The role of biomass burning states in light absorption enhancement of carbonaceous aerosols.

ABSTRACT: Carbonaceous aerosols, which are emitted from biomass burning, significantly contribute to the Earth's radiation balance. Radiative forcing caused by biomass burning has been poorly qualified, which is largely attributed to uncertain absorption enhancement values (E_abs) of black carbon (BC) aerosols. Laboratory measurements and theoretical modelling indicate a significant value of E_abs; but this enhancement is observed to be negligible in the ambient environment, implying that models may overestimate global warming due to BC. Here, we present an aggregate model integrating BC aerosol ensembles with different morphologies and mixing states and report a quantitative analysis of the BC E_abs from different combustion states during biomass burning. We show that

SUBMITTER: Wu Y 

PROVIDER: S-EPMC7393073 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature