Source Quantification of South Asian Black Carbon Aerosols with Isotopes and Modeling
Sanjeev Dasari, August Andersson, A. Stohl, Nikolaos Evangeliou, Srinivas Bikkina, Henry Holmstrand, Krishnakant Budhavant, Abdus Salam, Örjan Gustafsson
Abstract
= 44 ± 8%) with observations. Direct source-segregated comparison reveals regional offsets in anthropogenic emission fluxes in EIs, overestimated fossil-BC in the IGP, and underestimated biomass-BC in PI, which contributes to the model-observation bias. This ground-truthing pinpoints uncertainties in BC emission sources, which benefit both climate/air-quality modeling and mitigation policies in South Asia.
Topics & Concepts
Environmental scienceAir quality indexBiomass (ecology)δ13CAtmospheric sciencesBiomass burningIsotopes of carbonPhysical geographyClimatologyStable isotope ratioOceanographyGeographyGeologyTotal organic carbonMeteorologyEnvironmental chemistryAerosolChemistryQuantum mechanicsPhysicsAtmospheric chemistry and aerosolsAtmospheric and Environmental Gas DynamicsAtmospheric Ozone and Climate